disc rotors

[srj10]

would like to remove and clean rotors on my mtn bike,they are shimano m446 on a pinnacle jarrah but the bolts are covered by what looks like a weld or cap,any thoughts on how to remove?

 

[Deleted member 23692]

Sounds like you've got Shimano CenterLock discs instead of the 'usual' 6 bolt jobbies. You'll need a standard Shimano Cassette removal tool to get them off

Here's some gen...

http://www.bike-advisor.com/bicycle-service/how-to-replace-a-centerlock-rotor.html

 

[Rickshaw Phil]

Looking it up, that model of brake disc is a centre lock type as mentioned above. The lockring has the same spline pattern as a cassette but you need a tool with clearance to go over the axle locknuts.

I use this one: http://www.sjscycles.co.uk/icetoolz-icetoolz-cassette-lockring-tool-prod22211/

 

[djb1971]

if you're just cleaning them use sandpaper folded so it rubs both sides and then wipe over with ipa and a clean rag. No need to remove to clean, just don't go mad and bend them

 

[Pale Rider]

if you're just cleaning them use sandpaper folded so it rubs both sides and then wipe over with ipa and a clean rag. No need to remove to clean, just don't go mad and bend them

I can't see the point of removing the discs.

Another way to clean them is to use a rag and yellow kitchen cleaner such as Cif, which is mildly abrasive.

 

[jnrmczip]

Buy disk cleaner for them works a treat

 

[Yellow Saddle]

A disc and a rotor is one and the same thing. However, why do you want to clean them? If it is because they're making horrible noises they may be contaminated by stuff that cannot be removed with cleaning products and you may have to sand them. This requires some serious elbow grease and is best done carefully on a belt sander. In this case you have to remove them.

 

[compo]

I have Shimano mechanical callipers with centre lock rotors and I just give them a spray with disc brake cleaner and a wipe with kitchen towel. A squirt through the calipers doesn't hurt either to polish up the pads a little. Keeps them nice and quiet in operation.