AMRA TECH TIPS

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Tip #1 "Don't let your wife catch you working on your bike at the kitchen table"

Safety Wiring Tips For Your Bike

To race on any track you will need to make sure you bike has been properly safety wired. Safety wiring prevents bolts and nuts from working their way loose compromising yours and other riders safety on the track. Proper safety wiring is a vital part of the technical inspection you will need to pass in order to get on the track.

Below are some photos along with descriptions of the safety wiring as well.

Grips

The grips on your bike are two things that you should not over look. There is a significant amount of force placed upon your grips when you are cornering. It is a good idea to safety wire your grips to prevent them from sliding of the throttle tube, or the clip-on handlebar.

Make sure the cut ends of the safety wire are pushed in to the grip so you do not injure your hands when you are riding.

Master Cylinder Banjo Bolt

The master cylinder banjo bolt does not need to be safety wired. This bolt can have silicone instead of safety wiring.

Remember to silicone at least a day prior to the event to ensure the silicone cures properly.

If you decide to safety wire you banjo like you really should, it is easier to do with a small cordless drill or Dremel tool with the banjo bolt on the bike.

Front Brake Caliper Banjo Bolt

The front brake caliper banjo bolt does not need to be safety wired. This bolt can have silicone instead of safety wiring.

Remember to silicone at least a day prior to the event to ensure the silicone cures properly.

If you decide to safety wire you banjo like you really should, it is easier to do with a small cordless drill or Dremel tool with the banjo bolt on the bike.

Rear Brake Caliper Banjo Bolt

The rear brake caliper banjo bolt does not need to be safety wired. This bolt can have silicone instead of safety wiring.

Remember to silicone at least a day prior to the event to ensure the silicone cures properly.

If you decide to safety wire you banjo like you really should, it is easier to do with a small cordless drill or Dremel tool with the banjo bolt on the bike.

Front Brake Caliper Bolts

The front brake caliper bolt MUST be safety wired. This bolt should NOT have silicone instead of safety wiring.

These bolts when wired properly, will prevent the caliper bolts from backing out do to the nature of the way the wire is run.

Think about the way you tighten a bolt. Look at the picture, and and try to figure out why a bolt won't loosen off. If you can't figure out how it work, email one of the executive, and they will answer any questions you may have.

When drilling the caliper bolts it is easier to do with a small cordless drill or Dremel tool with the banjo bolt on the bike. Typically if you drill these bolts with two holes drilled 180 degrees apart, you will always have a hole for the safety wire.

Rear Brake Caliper Bolt and Rear Axle Nut or Bolt

The rear brake caliper bolt and axle nut MUST be safety wired. These nuts and bolts should NOT have silicone instead of safety wiring.

Different bikes will each look a little different, but remember that both need to be safety wired.

These bolts when done properly will prevent the caliper bolts or axle nuts from backing out do to the nature of the way the wire is run.

When drilling the caliper bolts it is easier to do with a small cordless drill or Dremel tool with the banjo bolt on the bike. Typically if you drill these bolts with two holes drilled 180 degrees apart, you will always have a hole for the safety wire.

Front Axle Pinch Bolts and Axle Bolts or Nuts

The front axle pinch bolts and axle nuts or bolts MUST be safety wired. These nuts and bolts should NOT have silicone instead of safety wiring.

Different bikes will each look a little different, but remember that both bolts need to be safety wired.

These bolts when wired properly, will prevent the caliper bolts from backing out do to the nature of the way the wire is run.

When drilling the caliper bolts it is easier to do with a small cordless drill or Dremel tool with the banjo bolt on the bike. Typically if you drill these bolts with two holes drilled 180 degrees apart, you will always have a hole for the safety wire.

Hose Clamps

Any part of your bike holding back positive pressure such as the cooling system requires that the hoses connected to the system are safety wired.

This is where most of the questions come because of the small nature of the hose clamps screw/bolt. It is not necessary to drill the screw head, but instead use one of the screws guide tracks. If you only have one hose clamp near by, use a fixed object on the bike to wire the clamp to.

Radiator Cap

Any part of your bike holding back positive pressure such as the cooling system requires that the parts connected to the system are safety wired.

One of the parts that may or may not be included in the technical inspection is the radiator cap.

This part is an easy one to do, drill a small hole on one of the tabs on the radiator cap, and safety wire the cap to the overflow line.

Oil Filter

The oil filter plug MUST be safety wired.

Some bikes may have a housing that covers the oil filter, these housings need to be safety wired as well.

For bikes that do not have the housing, you will need a hose clamp large enough to fit around the circumference of the oil filter, use one of the screws guide tracks to secure the safety wire to, and find a fixed location to attach the safety wire to.

If this one is not done you will not be going on the track. The problem with the oil filter is sometimes there are a limited number of locations to safety wire the filter to. You may need to safety wire the filter to the header pipe.

Oil Drain Plug

The oil drain plug MUST be safety wired. This plug should NOT have silicone instead of safety wiring.

This bolt/plug is easier drilled off the bike. So when doing that next oil change prior to going to the track, drill out the oil drain plug.

If this one is not done you will not be going on the track. The problem with the oil drain plug is sometimes there are a limited number of locations to safety wire the plug to. You may need to safety wire the drain plug to the header pipe.

Chain

On motorcycles that have a clip style chain, that is one usually aftermarket, that is not continuous, you will need to safety wire your chain like the picture on the link that has the clip. Make note of the direction of chain travel and be sure to point the tail of the safety wire opposite the direction of chain travel.

Oil Filler Cap/Plug

The oil filler cap/plug MUST be safety wired.

This one is a must because there is potential to lose a substantial amount of oil through this fill hole if the cap comes off the bike. Find a bolt to drill or a place close enough to safety wire the cap to.

Safety Wiring Techniques

Safety wiring is not mysterious or difficult. It really only takes some time and practice, and will soon become second-nature for you at the track. Safety wiring should always be done to keep bolts or nuts from backing out. That means always wire in the direction that will tighten the bolt. Safety wiring is also done to prevent any part that does come loose from falling onto the track and causing damage to another bike or rider. It never hurts to safety wire any critical part of your bike, such as controls, beyond the requirements in the rulebook.

Now that you know what you need to safety wire, you're probably wondering how to do it. First, go out and get the following items:

    Safety wire pliers

  • Safety wire pliers. Just buy a pair just like the ones in the picture. These are available at larger bike shops, racing supply companies, and even JC Whitney. Some people might suggest that you can use a "twirl tool" or a pair of needle-nose pliers, but you will be much happier with a pair of real safety wire pliers. Borrow a pair if you must.

  • A can of stainless steel safety wire. Some racers use ½ to a full pound can per season. The best overall size to buy is .032" diameter, although having a can of .028" and some .050" can be handy for tight spaces or damage repair. Safety wire is available at most motorcycle shops.

  • A variable speed drill and a dozen 1/16" drill bits. If you have access to a drill press, that can make the job faster. The tiny drill bits will only last 4 to 6 bolts. They will break often, even if you're careful, and dull quickly. Pick up a few 3/32" bits also. Be sure to keep the bit lubricated while drilling.

How to drill

Except for a few places on your bike where bolts are already drilled for a cotter pin, the nuts and bolts on your bike will have to be drilled before they can be wired. There are various ways to do this. It is best to use a drill press and a small vice to hold the fastener or part. Whether you have a press or a hand drill, here are some tips. First, go easy with those little drill bits. It takes very little force to break one. Lubricate the drill bit periodically with light oil. This helps it cut faster and also cools the bit. When the bit is about to clear the far side of the item you need to be careful that you don't snap the bit. Many nuts and bolts are surface hardened and that last section takes the longest. Throw out a drill bit when it gets dull.

Straight drilling Most bolts can be drilled straight through the hexagonal head, as in the first figure. Drill from flat to flat, and keep the hole centered. For the studs of some mounting bolts where a portion of the threads protrude, you might opt to drill through the shaft and wire in the fashion of the cotter pin found in most rear axles. If you do this, put a nut on the bolt first so that you can clean up the threads by taking the nut off. Banjo bolts (used on brake and oil lines) are hollow and cannot be drilled straight through. These must be corner drilled, as shown in the next figure.

Corner drilling Hexagonal nuts are drilled across one of the corners. This is a three step process. The drawing shows the drill bit pointed at the flat of the nut. Drill straight in until the bit is in about 1/16 inch. Then turn the nut in the vice about 15 degrees. Continue drilling until the bit is in about 1/8 inch. Finally, turn the piece again so that you can drill all the way through the corner.

Allen head bolts may be drilled through either one or both sides. Be sure to drill though the flats of the allen or you will weaken the grip offered the allen wrench. Drilling through both sides will make wiring the bolt easier.

How to wire

Once you have the nuts and bolts drilled and reinstalled, you need to wire them in place. You should first ensure that everything is torqued properly. Over-torquing a fastener will weaken the threads, and repeated over-torquing can lead to failure. Your bike's manual will have the torque and thread treatment specifications for each fastener. If appropriate, loctite or lubricate the threads first. You then need to wire the item as an insurance procedure.

When wiring nuts or bolts, there are several techniques used. The first is to wire the nut or bolt to a convenient fixed object, such as the frame or a fork tube. Another common technique is to wire two or more fasteners together so that none of the fasteners can back off. A third approach is to wire the head of a bolt to the nut on the other end. The figures show the first two of these techniques. Most drain or fill plugs will be wired to a frame member or engine part. Brake caliper nuts and bolts are usually wired together. Fork pinch bolts can be wired together or to a fixed item. A muffler mounting bolt is usually wired to its own nut.

Wired to fixed object The figure on the left shows a nut wired to a fixed member. It is best to start by looping the wire around the member and twisting the wire together. Continue twisting until the twisted part reaches just short of the nut or bolt. Thread one piece of the wire through the hole on the nut or bolt. Pull the wire tight and then continue twisting the wires together. Leave about 1/2 inch of twisted wire and cut off the rest. Throw the ends in the garbage can immediately. Tuck the end around so that you can't cut yourself on it. Tension should be kept on the nut or bolt in the tightening direction. The diagrams here show the wire in a loose fashion so that you can see the idea. Your completed wiring should be neat and tight.

Always discard your excess wire in a trash can. Those little pieces of wire can flatten a tire in no time. Always use caution when working with safety wire. The ends are very sharp and can easily cut your fingers. When you have finished wiring a nut or bolt, bend the end of the wire so that it doesn't protrude and create a hazard.

Wired together This figure shows two nuts wired together. The procedure is similar to wiring to a fixed object. Loop the wire through the hole of one of the nuts (or bolts). Twist the wire and maintain tension on the wire in the tightening direction of the nut. Continue twisting until the twisted wire reaches just short of the hole for the second nut and wire that nut. The wire should pass between the nuts to maintain tension on both nuts when the job is done. This process may be continued to wire additional nuts in succession, such as an oil filter cover, sprocket nuts, or water pump.

If your bike has a spin-on type oil filter, it can be wired in place by placing a hose clamp around the filter, then running a piece of safety wire from the clamp to the frame or another fixed object.

Another area which requires special techniques is fuel and water lines. You can use the spring loaded clips that come stock on most bikes, or use small hose clamps. If you use safety wire, be careful because you can cut through the hose by using too much tension. Small zip ties will also work.

Water lines are usually clamped with standard hose clamps. One precaution you can take is to thread same safety wire through the slot on the screw of the clamp, then attach the wire to the clamp. This will keep the hose clamp from loosening.

20 Pro Motorcycle Roadracing Riding Tips

A few things to think about at your next track day

By , Photography by Gold & Goose


What's the proper way to ride a motorcycle? Ask a dozen riders and you'll get a dozen answers. Not even the experts can agree. Take something as simple as steering: Forget that whole push-right-to-go-left deal. Keith Code gave us the Power Pivot, Reg Pridmore preaches body steering and Freddie Spencer stresses trail-braking to change direction. Totally contradictory techniques, yet they all work. Who are we to disagree?

The thing about riding a motorcycle is there is no one proper way--there are lots of ways. And you never stop learning. Take what you hear or read or see or are taught, think about it, give it a go, and if it works, make it your own. Then share it with your friends.

As a journalist, racer and track-day instructor, I've been doing just that for more than two decades now. Drawing from that experience, I've compiled 20 tips that, for one reason or another, have stuck in my craw for lo these many years. Most I got straight from the source, a few I read in books or magazines, but all are nuggets of information that have served me well. I hope they do the same for you.

1. Keith Code
LEARN TO THINK FOR YOURSELF

Say what you will about the guru, Keith Code wrote the book on high-performance motorcycle riding and it's called A Twist of the Wrist. Twenty-three years after it was first published, it's still tops on my list. I took Code's California Superbike School twice in 1984 and '85, and at first found his teaching style frustrating. Asked the best line through a corner, he turned the question back to me: "I don't know. There are lots of correct lines. They change depending on what bike you're riding, the condition of your tires, etc. What line do you think is correct?" What I thought was I'd better learn to think for myself.

2. Wes Cooley
KEEP YOUR CHEST ON THE TANK

The second time I took the California Superbike School, Wes Cooley was a guest instructor. I was impressed by how tidy he was on the bike--always tucked in behind the windscreen without any limbs sticking out in the breeze. Later, he told the class a funny story: "One day I came in from practice and my dad told me I needed to stay tucked in. I told him I had, so he tied a shoelace from my zipper to the ignition key. When I came back in after the next session, my leathers were unzipped to my waist." Keeping your chest on the tank not only improves your bike's aerodynamics, it lowers the center of gravity and gives the front tire a better bite.

Lessons Learned John Kocinski
John Kocinski
Spanish Gran Prix, 1990

3. John Kocinski
TRUST YOUR TIRES

Everyone frets about cold tires, especially when they're fresh from the molds. Not John Kocinski. In the years before John Boy won the 1990 250cc world championship, I covered the AMA 250cc Grand Prix series for Cycle News, and can recall him routinely going to the starting grid on unscrubbed slicks. "That's OK, I'll just push the front a couple of times on the warm-up lap and they'll be fine," I once heard him tell Dunlop's Jim Allen. This was years before tire-warmers were invented, incidentally. Kocinski's competitors were quick to point out he got the good Dunlops straight from the GPs, but it wasn't his tires that won him three consecutive titles, it was his confidence.

4. Danny Coe
ALWAYS UPSHIFT AFTER MISSING A GEAR

Back in the late '80s, Danny Coe of Cycle magazine was a top AMA 250cc GP competitor and unofficial champion of the Moto-Journalist GPs. When during a GSX-R launch at Laguna Seca I mentioned I'd botched a downshift, he asked me what I did next. "Um, I downshifted again." Wrong: Coe insisted you should always shift up after missing a shift, to ensure you're not a gear lower than you intended. Better to be out of the powerband than to have the rear tire hopping up and down, trying to pass the front.

5. Jason Pridmore
HUG THE CURVES

In '93 I rode for Kawasaki at the Willow Springs 24-Hour, and one of my teammates was Jason Pridmore. This was long before he established his STAR Motorcycle School, but he'd been instructing with his father's CLASS organization and had become adept at identifying riders' shortcomings. He followed me for a few laps during practice and afterward told me I needed to run tighter lines. Where I'd go through a corner with my knee on the white line, Jason would take it with his knee on or even over the curb. More often than not, the shortest path around a racetrack is the quickest.

6. Dale Quarterley
GIVE TO GET

During my six-year tenure as a race reporter for American Roadracing and Cycle News, there were two riders I could count on to give me a straight answer. One of those was Dale Quarterley. At 6-foot-2 and 190 pounds, the New Englander was too big to ever have been considered for a factory ride, but at Mid-Ohio in 1993 he won an AMA Superbike national--the last privateer to do so. He was a guest instructor when I took the Penguin School at Loudon that year, and his pet phrase was "give to get"--that is, you've got to give up speed at the corner entrance to get it back at the end of the following straight. Rushing a corner entrance only ruins your drive at the exit.

7. Randy Renfrow
NEVER GIVE UP

I miss this guy. Randy Renfrow was one of the nicest guys in motorcycle racing, but also one of the most determined. Not even having a toe grafted on to replace a lost thumb could extinguish his competitive spirit. Racing with Ducati-mounted Dale Quarterley for the lead of a Pro Twins race at Heartland Park Topeka circa 1989, Renfrow lost the front end of his Common-wealth Honda RS750 and fell to the ground, yet somehow managed to pull himself back on board and continue on to victory. "Bikes don't fall down, riders drag them down," he told me afterward. Ironically, it wasn't a crash that claimed Renfrow's life; it was a freak fall down a flight of stairs while recovering from one.

Lessons Learned Kevin Schwantz
Kevin Schwantz
Dutch TT, 1992

8. Kevin Schwantz
LOOK WHERE YOU'RE GOING

Book of Duh, Chapter One, but Kevin Schwantz's take is refreshing, especially for those of us whose height (or girth, or both) makes crawling under the paint difficult. Sure, the 1993 500cc world champion tucked in on the straights, but not as much as his rivals; he'd raise his head just enough to look over--or around--the windscreen. Like they taught you in Driver's Ed, looking farther down the road gives you a big-picture view that effectively slows things down--an important consideration at triple-digit speeds.

9. Steve Crevier
RIDE PROUD

Jockey-sized multi-time Canadian Superbike Champion Steve Crevier started out racing lightweight 250s, and after moving up to heavier production bikes realized he needed to change his riding style. Sitting bolt upright in the saddle--or "riding proud," as he called it--helped him maximize his leverage on the handlebars. As a track-day instructor, I've quoted Crevier countless times while trying to get new riders to focus on riding the motorcycle first and assuming the position later. When you start dragging hard parts, it's time to hang off. Until then, ride proud.

10. Doug Polen
THE FAST LINE ISN'T ALWAYS OBVIOUS

For the past seven years I've instructed with The Track Club at Buttonwillow Raceway, thus I know the track like the back of my hand. But after taking part in one of Doug Polen's One-on-One training sessions with radio communication, my idea of the right line was dramatically altered. B-Willow has two sections with three corners in a row, and everyone swoops back and forth across the track to negotiate them. Everyone except Polen: The former AMA and World Superbike champion stays hard on the gas way past the customary braking point for the first corner, trail-brakes straight up the inside of the second, hugs the apex and then gets a killer drive out of the third. Freddie Spencer has a term for this; he calls it "throwing out a corner."

Lessons Learned Eddie Lawson Scott Russell
Eddie Lawson & Scott Russell
Daytona 200, 1993

11. Eddie Lawson
LEARN HOW YOUR SUSPENSION WORKS

When Eddie Lawson returned from the 500cc Grand Prix wars to ride a Vance & Hines Yamaha Superbike in the 1993 Daytona 200, he had to get a handle on an unfamiliar motorcycle without the benefit of prior testing. To do so, he spent his initial practice sessions exploring the full range of suspension and chassis adjustments before he even tried to go fast. The results were predictable: He won the race after an epic battle with Mr. Daytona, Scott Russell. And then went onto a modestly successful career in Indycar racing, where his methodical approach served him equally well.

12. Scott Russell
STEER WITH THE REAR

Once upon a time (1994), in a land far, far away (Malaysia), there was a press introduction for the then-new Kawasaki ZX-9R. It was hot--really hot--and the sketchy stock Bridge-stone tires gave me fits until I watched Scott Russell ride. Undaunted by the lack of traction (he'd experienced worse at the end of races), the reigning World Superbike champion set a blistering pace 4 seconds per lap quicker than the fastest journalist, and slewed sideways off the corners in complete control. How'd he do that? Simple: He weighted the inside footpeg to break the rear tire loose, then weighted the outside peg to get it to hook back up.

13. David Sadowski
BE YOUR OWN SLIPPER CLUTCH

Talk to anyone who raced with David Sadowski and they'll more likely tell you about his balls than his brains. But as the 1990 Daytona 200 winner's racing results and subsequent stint as a television commentator proved, Ski gave a lot of thought to his racing. One year at Daytona I was chatting with Doug Polen while waiting for the riders' meeting to start, when up walks Sadowski with a newspaper. On the cover was a photo of Polen entering Turn 1 with his hand still visibly squeezing his Ducati's clutch lever. The ensuing dialogue was enlightening as the two discussed the merits of trailing the clutch to the apex to modulate engine braking and thus prevent rear wheel hop. Nowadays we've got slipper clutches to do this for us, but it's still a useful technique.

14. Doug Chandler
SAVE A SLIDE

What do you do when the rear end starts coming around on the throttle? According to three-time AMA Superbike Champion Doug Chandler, the answer is: nothing. And he should know. With wins in all four disciplines of AMA Grand National dirt-track competition and Supermoto, he obviously knows how to slide a motor-cycle. According to him, when the rear tire starts sliding, the last thing you want to do is chop the throttle; instead, simply stop adding throttle until the tire hooks back up. A one-time Keith Code protg (he wrote the liner notes for A Twist of the Wrist 2), Chandler recently started a riding school (www.champ-racing.com) and one of his first graduates was his son, Jett.

Lessons Learned Kenny Roberts
Kenny Roberts
Dutch TT, 1979

15. Kenny Roberts
GO FAST IN THE FAST PARTS

Three-time 500cc World Champion Kenny Roberts doesn't believe in coasting--you're either on the gas or on the brakes. The most important corner on any racetrack is the one that leads onto the longest (and thus fastest) straightaway, so Roberts would put a priority on getting that section right. Trying to go fast in slower corners is not only pointless, it's risky, because you don't have momentum on your side. If the front tire loses grip in a fast turn, you've got time to save it. If it lets go in a slow one, it's game over.

16. David Aldana
CONSIDER THE FRONT BRAKE LEVER AND THROTTLE CONTROL AS ONE CONTROL

I'm not old enough to have raced with David Aldana, but there was a period in the '90s when he did some testing for Roadracing World and I was fortunate to spend time with him. Bones (so nicknamed because of his infamous skeleton leathers) is nothing if not animated, and it was while he was regaling us with one of his zany racing tales that I detected a pattern in his hand-and-wrist motions. I mentioned this to him, and he replied that he considered the front brake lever and throttle as one control; you squeeze the lever as you close the throttle, and release it as you open it.

Lessons Learned Freddie Spencer
Freddie Spencer
British GP, 1987

17. Freddie Spencer
BRAKE WHERE YOU NEED TO, NOT WHERE YOU THINK YOU SHOULD

I've taken the Freddie Spencer High Performance Riding School twice, at nine-year intervals. And while the curriculum has changed, the message remains the same: Be smooth. "Fast riders have slow hands," Spencer says, and then puts you on the back of his Honda VFR to show you what he means. The three-time world champion doesn't snatch at the brake lever; he squeezes it like the trigger of a gun, and releases it just as gently. Moreover, he uses braking pressure to get the bike to change direction, tightening his line as speed decreases. Freddie doesn't rigidly adhere to brake markers, either; he's more flexible, braking earlier or later and making adjustments mid-corner as necessary.

18. Marco Lucchinelli
USE THE REAR BRAKE

I took the Ducati Riding Experience racing course at Misano, Italy, a few years ago, and my instructor was 1981 500cc World Champion Marco Lucchinelli. Belying his nickname, Lucky spent time in prison on drug charges and frankly wasn't riding like a man who had beaten racing greats with names such as Roberts and Rossi--or at least their dads. The only memorable advice he gave me was, "You should use the rear brake." When I asked him why, he said, "Because there are two," and then explained how using the rear brake to scrub off unwanted speed mid-corner is safer than adding more front brake pressure.

19. Barry Veneman
GIVE IT FULL STICK

How did a Dutch Supersport racer make this list? During the international Masterbike competition at Valencia, Spain, in 2005, I was talking to Barry Veneman and heard him condense the act of going fast into the simplest possible terms: "Choose lines that let you get to full throttle the soonest." Bazza explained that before he was exposed to data acquisition in the 500cc GPs, he had no idea how little time he spent at full stick--typically less than 10 percent of a lap. So he started picking lines that let him pin the throttle as early as possible, making sure he felt it click against the stop.

20. Rickey Gadson
DON'T LAUNCH AT REDLINE

And so it ends--at the beginning. Watch the start of any roadrace and you'll likely see 30 riders doing it wrong. I know--I was one of them. It wasn't until a couple of years ago that Pro dragracer Rickey Gadson set me straight. Most roadracers hold their engines at or near redline and then dump the clutch, resulting in a wild wheelie, a squawking clutch or both. Rickey does it differently: He holds engine revs at peak torque, not peak horsepower, lets out the clutch quickly and then pins the throttle. His launches are unspectacular affairs, the only excitement the howl of the rear tire--and the killer 60-foot time he just laid down. Believe me, you wouldn't want to race him for pinks

Loose on the bars
What does it mean?  The way you ride a
sportbike is with your legs and core.  Your hands are there to finesse the bars not hold you on the bike.  Never squeeze the grips any harder than you could squeeze a banana (without smushing it).  Loose arms and grip allow the front end to track and maintain grip as well as allows you to feel what's going on at the contact patch.

 

Brakes
Most people ignore their brakes as long as they work. Brake fluid is hydroscopic which means is absorbs moisture.  The more moisture it absorbs the more it can compress and is affected by heat.  Change your brake fluid once a year to maintain optimal performance. 

Thunder Bike Specs

Honda XR 100 / Yamaha TTR125 / Kawasaki KLX125 / Suzuki DRZ125

  The best Tires for most is now the Michelin Macadams Part #'s Front 95-732 $165.99 And the rear 95-022 $157.99  

http://www.teamcalamari.com/dox/techtips.html

http://www.ysrracing.com/faq.htm

(Some Info from the web on YSR's)

( Complete YSR Parts List )

(Chain, Ignition, Pipe, Stator )

(Carb Tunning)

Reed.wmv

(Chain, Ignition, Pipe, Stator )

( Tires, Plugs, Prep )

(Break in Secrets)

(The Black Magic of Pipe Design)

DREAM 50 / NSR50RR K&N FILTER # 104-RCO870

Did you know the Shift linkage off of a Honda CBR600 F1, F2, F3 bolts up perfectly to your
NSR50/80, and will provide GP pattern shifting.

 

 

 

 

 

 

 

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