I just recently replaced my chain and sprockets and when installing the rear sprocket the manual calls for 47ft.lbs but when I tried torqueing it down the bolt keeps turning with it, just wondering if anyone else has this problem and how you over came it? also I think I may have stripped one of the nuts, where can I buy one for the time being until I order a new set? Thanks in advance. Fyi went with a 15/47 with a 525srx ek chian, protek front sprocket and vortex rear.

 

Finger tighten then install the chain and tension the chain. Put the bike down off the 2x4 or stands or whatever you are using, then tighten the bolts. The wheel won't go anywhere with the weight of the bike on it.

 

The ace hardwares in Tulsa carry a pretty complete line of metric nuts and bolts and various exotica. That's where I get my "oh shoot!" hardware.

And F34me is giving you the straight skinny, it's usually best to torque when the bikes on the ground (saves the embaressment of pulling it off your stands).

If you really want to torque before you put the chain on, slip a 2x4 or padded piece of pipe between the spokes and turn the wheel snugging it up to the swingarm, then torque away.

Ern

 

Wait so you didn't take the entire wheel out to tighten to put on the new sprocket? If you did, just have someone hold the wheel laying down and tighten away.

 

Sounds like he already installed the wheel and chain back to the bike. It is much easier and safer to do it with the wheel on the bike and off the stands. Hate to see anyone or the bike get hurt!

 

Oh okay I get it now. Then yeah Torquemada it off the stands is definitely his best bet. When I was fitting my tail this past weekend I had half the bike fall of the stand, I was pissed.

 

Yes the wheel was back on and bike off the stand, but the problem when torquing it down was the bolt was rotating also, I had to stick a flat screwdriver to wedge the flat portion of the sprocket bolt so it wouldn't turn while torquing it down.

 

Are the bolts not allen key on one side and hex nut on the other? I haven't looked at mine, but all bikes I have ever worked on have been like that... You put the hex key in one side and hold it while you crank the ratchet on the other side. Or better yet, wedge the ratchet against the swingarm and turn the allen key.

 

If you're talking about the bolts that hold the sprocket to the wheel, there are bolts that run through the back of the sprocket and then nuts are torqued onto those bolts from the front side to hold the sprocket on. If you examine these bolts they are shaped in such a way as to hug the flange that the sprocket bolts to. It seems with too much torque they can slip and not hugging the flange properly. I have this issue but just tightened the bolts that slip the best I can and have never had a problem.