Bicycle Mechanics - Shimano cassette install problem?

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.




View Full Version : Shimano cassette install problem?


Xrisnothing
08-04-07, 08:13 AM
Okay, so I've installed a shimano cassette on my new set of wheels and torque'd the lock ring to the specified 40 Nm and there is a bit of play between the cogs. The only ones that do not move are the largest three (they're joined together) and the smallest one. The rest of the cogs have a bit of wriggle room and make a bit of noise when you shake the wheel. Is this normal? If not, what could cause this? I've used all of the spacers and followed the instructions as far as I know.


Xrisnothing
08-04-07, 08:22 AM
So I looked around and it seems that the 10spd cassette is going to need a 1mm spacer to take up the play. Ugh, now I need a new tool (chain whip) to take the cassette off...

DMF
08-04-07, 08:28 AM
What, you expected to leave it on forever? ;)


Xrisnothing
08-04-07, 08:31 AM
Yeah, I hate having to buy new tools. They're fun, but I lose them after a month or so no matter what. I wonder where they all go...

blamp28
08-04-07, 09:04 AM
Yeah, I hate having to buy new tools. They're fun, but I lose them after a month or so no matter what. I wonder where they all go...

When you find them, they will be in a pile along with unmatched socks and wire hangers.

DMF
08-04-07, 09:58 AM
Buy a tool box with a lock. Put the tools in the tool box. Lock it.

Xrisnothing
08-04-07, 03:12 PM
Okay, you can officially remove the "?" from the top of this thread.


I'm apparently a complete moron and I managed to over torque the lock ring. I bought a chain whip and managed to actually bend it while trying to take the stupid thing off.

Any ideas as to taking this thing off? I'm a complete moron. I seriously want to cry right now.

Tabor
08-04-07, 03:16 PM
You could beg, borrow, rent, buy, or steal an impact wrench (either electric of pneumatic). I bet that would do the trick.

Xrisnothing
08-04-07, 03:23 PM
I can certainly get a hold of an impact wrench, but isn't that going to screw up another chain whip?

Tabor
08-04-07, 03:35 PM
I can certainly get a hold of an impact wrench, but isn't that going to screw up another chain whip?

No, because the impact wrench applies torque intermittently and the casset has inertia that must be overcome. Besides, you are out of options :p.

Xrisnothing
08-04-07, 03:38 PM
okay, so impact wrench with no chain whip then?

I'll have to take the wheel to my uncle's house and face his taunting. I don't want to be the laughing stock of the bike shop...

Tabor
08-04-07, 03:40 PM
okay, so impact wrench with no chain whip then?

It would be better with a chain whip or the casset will slowly increase in velocity. You *might* get away with putting a towel over the casset and holding it with your hand.

55-11
08-04-07, 03:58 PM
It would be better with a chain whip or the casset will slowly increase in velocity. You *might* get away with putting a towel over the casset and holding it with your hand.


"Yeah ..thats a GREAT idea!" as testified to by four-fingered fred

http://www.nlm.nih.gov/exhibition/visibleproofs/media/gallery/iii_b_416.jpg

Tabor
08-04-07, 05:26 PM
"Yeah ..thats a GREAT idea!" as testified to by four-fingered fred

Have you ever used an impact wrench? I have held onto lots of stuff while I used my impact wrench on it.

Xrisnothing
08-04-07, 05:33 PM
I'll probably use the chain whip, after I exchange it for the park tool version. I cheaped out and got the spin doctor one. I hope the park tool version is actually more reliable. I don't care if it was over torqued, it shouldn't have bent like that. Let's hope performance agrees.

Xrisnothing
08-05-07, 05:58 PM
Okay, performance took the chain whip back and I got the park tool version instead. The park tool version both looks and feels much stronger than the spin doctor. I also went out and got a cheap impact wrench. Believe it or not, but it took about three goes with the wrench to get the thing off. Also, there's no way I would have been able to do it with a towel.

So the lock ring and hub are actually in fairly good condition. There was a bit of stretching on the threads, but they were not stripped. I put the 1mm spacer I picked up at a bike shop on and the cassette and lock ring went on as snug as a bug. Thanks be to everyone who posted on this thread.