11-08-2018, 09:59 AM
Sorry, forgot about the chain tension.
As you sit on the bike and ride through a pothole the rear swingarm moves up against the spring ( s ) this causes the chain to tighten as a result of the geometry of the pivot shaft, the position of the front sprocket and the swingarm.
This is the reason for the prescribed slack of the chain and is different but similar for most bikes, if the chain gets too tight it wears it and all relevant parts out prematurely.
This can be verified by watching the slack with someone sitting on and off the bike to alter the angle of the suspension and slack of the chain.
Also as the chain shackles wear over time it could be that part of the chain stretches more than the rest of the chain and you have to allow for the slack to not go tight in the shorter part of the chain, rotating the wheel and watching the slack is a good way to prevent this from happening.
to align the wheel i use some string ; starting at the left lower brake disk going around the rear wheel back to the lower right disk, this is the least critical way for the front wheel to be straight.
Looking for even gap between the string and the rear wheel on both sides with the bike on the sidestand.
As you sit on the bike and ride through a pothole the rear swingarm moves up against the spring ( s ) this causes the chain to tighten as a result of the geometry of the pivot shaft, the position of the front sprocket and the swingarm.
This is the reason for the prescribed slack of the chain and is different but similar for most bikes, if the chain gets too tight it wears it and all relevant parts out prematurely.
This can be verified by watching the slack with someone sitting on and off the bike to alter the angle of the suspension and slack of the chain.
Also as the chain shackles wear over time it could be that part of the chain stretches more than the rest of the chain and you have to allow for the slack to not go tight in the shorter part of the chain, rotating the wheel and watching the slack is a good way to prevent this from happening.
to align the wheel i use some string ; starting at the left lower brake disk going around the rear wheel back to the lower right disk, this is the least critical way for the front wheel to be straight.
Looking for even gap between the string and the rear wheel on both sides with the bike on the sidestand.