what size brake disc pads/

[MikeS]

Hi Everyone - long time since I posted.
My nephew is very good with bike maintenance so he serviced my Halfords Crossfuse for me, and I thought I had some new rear disc pads for him to replace. But he said they were 'wrong' I think he expected to see circular pads for the rear barkes because ceratinly the hydraulic cylinder and housing LOOK circular. The ones I must have bought years ago are genuine Shimano B01S .... are these the correct ones, because if so I will try and fit them tomorrow? Here's a picture of the rear brake itself.
Thanks
Mike

 

[matthewslack]

They won't be circular, and the B01S fits many Shimano calipers. Easy to check, although removing wheel is needed for a good look. Look from the underneath view and you should see the straight sides.

B01S work fine, but have been superceded twice by B03S and now B05S. Longer lasting is the main difference.

 

[AndyBike]

Theres a number on the brake caliper that would identify which pad it is supposed to get.

It will start BR-M.... for example BR-M200

 

[saneagle]

Hi Everyone - long time since I posted.
My nephew is very good with bike maintenance so he serviced my Halfords Crossfuse for me, and I thought I had some new rear disc pads for him to replace. But he said they were 'wrong' I think he expected to see circular pads for the rear barkes because ceratinly the hydraulic cylinder and housing LOOK circular. The ones I must have bought years ago are genuine Shimano B01S .... are these the correct ones, because if so I will try and fit them tomorrow? Here's a picture of the rear brake itself.
Thanks
Mike
View attachment 63574

You know they're the right ones when they're the same shape as the ones you have. It takes about one minute to look.