Shimano R9250/9270 Di2 Full Groupset 12s Model:Dura Ace R9270 Di2 Disc

Shimano R9250/9270 Di2 Full Groupset 12s Model:Dura Ace R9270 Di2 DiscWe take years to give you seconds. The pinnacle of Shimano road technology and innovation, the new 12 speed R9200 DURA ACE is our fastest, most inspired drivetrains ever. Speed was the driving force behind the new generation of road groups, and every decision our designers made was to make you faster. Shimano engineers worked to refine each component and every function to provide the best on bike experience, whether you're sprinting to the finish on

Some casing tires are very porous and will experience weeping of sealant throughout the casing sidewalls

on the other a flat pedal with an elastomer grip for safe riding in any conditions

Offset: 0 and 20mm

Pad shape: Wide type

81 oz (Large)

Length: 350mm

All these characteristics work together in reducing rolling resistance

With new refinements for seamless 12-speed shifting

The RD-RX812 rear derailleur is compatible with mtb cassettes with a 42T low sprocket max

Super-hydrophobic coating increases water repellency

Zipp Service Course SL Stem

Sleek design