No expert but fitted these myself with the help of a "park tool" video on u tube they stop me in about a 1/4 of the time the old ones did (standard axis 1.0) especially in the wet all be it that may be down to the pads as well. The bike they went on mostly had shimano 105 already so it complimented that nicely. For an extra £15 I could have had ultegra 6800 but for the extra cost you really only save on weight and the ultegra are anodised not painted (but would be compatible) I recommend this product, cost wise you get what you pay for I'm glad I have them good luck
Verified purchase: Yes | Condition: New
Excellent product works a lot better than my previous brake callipers
Verified purchase: Yes | Condition: New
Very sturdy callipers that fit my ‘90s road frame
Verified purchase: Yes | Condition: New
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