Yes the calipers front and rear are the same on the R and Z (although the Z's additional right hand front caliper is a mirror image casting the seals, pins etc. are all the same). The X has a completely different front caliper, but the rear is the same on all Xt660s.



As Ohlins suggests, there are quite possibly other sources of caliper refurbishment parts out there if you've got the time and inclination to do the cross-referencing. They may work out cheaper, but on the other hand they may not? For example the pad retaining pins can be bought easily on ebay, but are of unknown origin/quality.

All I can say is the parts listed in the above post are everything you'll need, reasonably priced, good quality and in stock. The cross-referencing has been done, they have been tested by yours truly and will fit perfectly enabling a full rebuild of both front and rear calipers (contrary to what Yamaha say is possible).

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