Giant Doofus

This is a follow-up to my previous thread about replacing my CX 50 brake shoes and pads with CX 70s. I'm ready to do that now, but can't figure out which size spacer I need. They come in small, medium, and large. I can't find any web sites that indicate how long each sized spacer is.

My current brakes have 1.5 cm spacers.

Does anyone know how long the spacers are on the three different CX 70 replacement brake shoes?

Thanks.

Edit: I got an answer. See post #7

Bezalel

You can keep your existing spacer and bolt but that is assuming that it was correctly setup to begin with (and you are using the original wheels). The technical service instructions have a chart to determine the correct spacer and washer arrangement but it doesn't list the actual sizes.


https://bike.shimano.com/media/techdo...9830749996.pdf


I'd guess that 15mm is the long spacer. The medium spacer looks like it's length is about the same as its diameter, and I don't think the diameter would be 15mm.

Giant Doofus

Thanks!

curby

I had the CX50s also, they had one piece brake shoes with integrated convex washers, did yours? My CX70s came with all three size spacers you mentioned and I chose the ones that positioned the brake arms close to vertical (not past vertical) when the pad meets the rim. So based on the different design (the CX70s having removable pads) I did not use any spacers or washers between the two setups that were comparable size, if memory serves they differed in size (CX50 spacers larger diameter and convexity?)

Bezalel

The brakes come with all 3 sizes of spacers but replacement pads come with just 1 size of spacer.

Giant Doofus

I'm glad to hear from someone else who successfully made the switch. I had no idea that brake pads would be proprietary. That's just not something I thought of when I chose my bike, not that it would have changed my choice.

That's what I found as well - the replacements pads come with just one of the three sizes of spacers. I think I'll order the large and hope that's right.

Giant Doofus

I got an answer from customer service at Chain Reaction Cycles. Here's what they say:

I'm placing the order now.