Shimano Dura-Ace BR-R9210 Rim Brake Calipers - Direct Mount Variant:Rear Seat Stay HYPERGLIDE+ technology for ultra-fast shifting

HYPERGLIDE+ technology for ultra-fast shifting under load

with no weight penalty

Ti hardware

enabling riders to go longer between top-offs

there are some road bike fork/frames that require a special thinner lock ring and are not compatible

Shimano Dura-Ace BR-R9210 Rim Brake Calipers - Direct Mount Variant:Rear Seat Stay HYPERGLIDE+ technology for ultra-fast shiftingThe Science of Speed. Speed was the mainspring in the development of this 12 speed road bike series of a new generation. Several years of research produced those innovations that make the Shimano Dura Ace R9200 even faster. Every component has been revised, refined and optimised to enable the decisive seconds of advantage whether as a breakaway from the peloton or in the finish sprint on the Champs lyses. With its symmetrical short arm design and SLR