Rim wear indicator groove causing premature brake block wear

[RhythMick]

Shimano CX70 brakes. Changed wheels recently to rims that have a wear indicator groove on them.

Found my brakes were sticking. Turned out there was a ridge on the block that was sticking in the groove. Shame to dispose of the blocks as there's plenty of wear otherwise, but no choice really.

I don't think there's room to position the blocks either side of the groove.

Is this a common problem?

 

[pumpadave]

personally i'd get a bit of abrasive paper and take the high groove off the brake block every now and again.

 

[Shut Up Legs]

I bought a pair of rims with the concentric groove wear indicator once. Never again. I got fed up with the brake pads sticking to the rim.

 

[RhythMick]

personally i'd get a bit of abrasive paper and take the high groove off the brake block every now and again.

Great tip. Seems obvious now you've said it. Thanks.

 

[Fab Foodie]

I have grooved rims, never had a problem.

 

[growingvegetables]

Oh! That's what the groove is for ........


Goes and hides head in nearest plastic bag.

 

[raleighnut]

Use a good flat file to 'dress' the surface of the brake blocks, also good for removing embedded grit.

 

[sreten]

Hi, Just take off most of the ridge with a sharp knife, rgds, sreten.