Rear wheel alignment when adjusting a curvy chain.

I know that when I'm adjusting my chain I am supposed to make those plates line up with the small marks on the swing arm on either side to keep it in a straight line, BUT! On one side the plate is fixed to the bolt head, and on the other it is loose when a noticable amount of movement! I loosened the nut too much last time allowing it to move, and it is too marked to find its previous place, and too difficult when tightening the nut to make it stay still!?

Hence how can I tell my wheel is properly alligned?

Thanks, Tom.

The plate is probably stuck to the bolt with road grime. I dont think they are fixed to the bolt head. Give it bit of a gentle tap with a hammer. Or remove it all and give it a good clean!!?? Wont hold you up in future then!

[Drew Carey]

To check the alignment you could use a piece of string from the axel to a fixed point......then just check the distance is the same both sides. The plates are known to be unreliable anyway as they can twist when tightening the axel anyhow.

Originally Posted by Drew Carey

To check the alignment you could use a piece of string from the axel to a fixed point......then just check the distance is the same both sides. The plates are known to be unreliable anyway as they can twist when tightening the axel anyhow.

Well, I tightened the axle so much that the swing arm is touching where it is tightened against, then, measured from the final swing arm marker to the outer rim of the alloy wheel. But now the plate markers are differing by a whole point? Sound normal? Something bent?

[Biker Biggles]

Use a straight edge to check the front wheel aligns with the rear but bear in mind the fatter rear tyre will mean the edge will be a bit away from the front tyre.You can use string for this if can keep it tight.It shouldnt be a big issue,but make sure all the spacers are correctly in place on the rear spindle.

Also, check how much you're tightening the axle nut - the axle nut needs to be tightened to 65Nm and the torque arm bolt at the back brake is 35Nm.

Don't use the plates and markers to check the straightness of your chain. They are notoriously crap and can be as much as a whole marker out.

[yorkie_chris]

Plank of wood against the back wheel and check for distance between the edge and rear wheel.

Though cast your eye down it first to check your straightedge is straight.