I've got a pair of R451 long drop brake calipers for sale (for bikes with mudguards). They have Ultegra cartridge blocks in them as the ones that came with them were not that good.
I've got a pair of R451 long drop brake calipers for sale (for bikes with mudguards). They have Ultegra cartridge blocks in them as the ones that came with them were not that good.
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