MOTOBRICK.COM
TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: beemuker on July 29, 2015, 05:26:08 PM
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I don't notice it too much with my hands on the bars, but if I take my hands off [ purely for test purposes] the bike pulls right. I have to get my weight way off center to keep er straight. any way to fix this, is it broken?
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Tire pressure, worn tires, and steering bearings would be my first checks.
I assume you haven't hit anything recently, and this is a new phenomenon.
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Tire pressure, worn tires, and steering bearings would be my first checks.
I assume you haven't hit anything recently, and this is a new phenomenon.
new Pirelli sport, tire pressure good, bearings?. I think it was like this when I got it 1k ago. just never bothered me.
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I think they all do that. I think it's because the wheels are slightly off-set.
Tom
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I think they all do that. I think it's because the wheels are slightly off-set.
Tom
I was thinking this.
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I think you can play with rear wheel spacers to try to fix it
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Tire pressure, worn tires, and steering bearings would be my first checks.
I assume you haven't hit anything recently, and this is a new phenomenon.
new Pirelli sport, tire pressure good, bearings?. I think it was like this when I got it 1k ago. just never bothered me.
I am a novice motobricker, so my guesses come from general motorcycle experience coupled with ignorance. Head bearings can develop little dents in the races that give a "set" position. This is way more common with ball bearings. I am not into this addiction far enough to k ow what kind of bearings should be or are installed on your bike. If they're rollers it's probably not the issue.
it sure sounds like The Nature of the Beast from other responses, though it's worth eliminating as many other ppossibilities as you can
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One question:
When you guys let off of the throttle, do you have some form of
Cruise control or throttle/friction lock to keep the rev's stable?
If not then, imo, the issue is less likely the wheel offset and more the rotational force of the engine.
I say this because as long as my RPM's are stable she runs pretty straight. If the throttle is accelerating she goes one way and goes the other on deceleration.
Later,
Freelancer
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Wheels are offset from the factory. Maximum permitted wheel offset: 5 mm. Wheel rim of equal width will have an offset of 4mm. Wheels with different front and rear widths will have a typical offset of 1.5mm. Playing with spacers is best done in conjunction with an offset gauge. See page 46-79.0 of the oem manual.