SLX chainset movement

clwydian_rider92

Hi, my SLX chainset is just over a year old and i'm experiencing some movement with it. Just wondering what is causing this movement. Is it the bearings etc.

And if so what tools do i require to carry out the service.

Thanks for your time

ilovedirt

I assume you mean side to side movement, as opposed to the normal circular motion you would expect from them

Remove the cranks, it could just be that the bearing preload cap is loose or something. More likely the bearings are knackered. Once the cranks are off, spin the bearings with your fingers, if they feel gritty and bumpy, your BB needs replacing. A year is respectable enough for a shimano BB.

LjStronge

Sorry to jump on this this thread but how do you change a BB on a hollowtech?

Does it come apart and you can replace the middle section?

Sorry for the simple question, I have a very old deore with a BB obviously but am going to but an XT next week and know they are hollowtechs so am interested in what you are saying about the BB

Chunkers1980

Lj - read the FAQs.

You will most probably need and is recommended by many that you get your frame faced first - this is for you most prob a LBS job - £20ish quid.

clwydian_rider92

As dirt says your bearings may be shot - but first take them off give them a good wipe around the arm 'races' and BB and install them again to the correct preload to see if that helps - if not it's new BB time.

LjStronge

Chunkers1980 wrote:

Lj - read the FAQs.

You will most probably need and is recommended by many that you get your frame faced first - this is for you most prob a LBS job - £20ish quid.

Will do, Cheers

ilovedirt

LjStronge wrote:

Sorry to jump on this this thread but how do you change a BB on a hollowtech?

Does it come apart and you can replace the middle section?

Sorry for the simple question, I have a very old deore with a BB obviously but am going to but an XT next week and know they are hollowtechs so am interested in what you are saying about the BB

Aye, read the FAQ's about replacing them.
It's probably a good idea to just change the BB, but you can buy a tool for removing the bearings and popping the new ones in on the shimano HTII BBs, but it's about £50.

clwydian_rider92

would this tool do the job?

http://www.chainreactioncycles.com/Mode ... elID=10179

supersonic

Yes, has the preload tool, and cup tool.

It may just need more preload, try that as well. Undopinch bolts, add preload like a headset, do up pinch bolts.

clwydian_rider92

ye i thought it would do the job and your buying 2 tools in 1. Seems a good buy eventhough it wont be as good as quality as Shimano or Park tools but for £10 can't go wrong.

Thanks

ilovedirt

Unless you work in a bike shop, you don't really need the best quality tools, as you'll only use them a few times, that'll do the job fine.
As super says, try undoing the pinch bolts, tighten preload cap, do up pinch bolts. That may be it. Worth checking your bearings as well while you're at it though.

Trail-blazer

clwydian_rider92 wrote:

ye i thought it would do the job and your buying 2 tools in 1. Seems a good buy eventhough it wont be as good as quality as Shimano or Park tools but for £10 can't go wrong.

Thanks

Did you manage to fix the problem or was it a worn out BB?