Shimano Dura-Ace ST-R9180 Di2 TT Shift/Brake Lever Wire - Left 2x For TT Bars BLK ModelNumber=K2771 }RockShox Reverb/Reverb Stealth A2/B1 Bulk

}RockShox Reverb/Reverb Stealth A2/B1 Bulk Inner Sealhead U-Cup 10 Pack

Aero and D-shaped seat post compatibility varies by bike model

description spoke gauge and length ruler

See compatibility above

Shimano Dura-Ace ST-R9180 Di2 TT Shift/Brake Lever Wire - Left 2x For TT Bars BLK ModelNumber=K2771 }RockShox Reverb/Reverb Stealth A2/B1 BulkThe Shimano Dura Ace ST R9180 Di2 TT Triathlon Shift Brake levers for 2x 11 Speed systems bring confidence to the sleekest bikes in the world. Combined with the plug and play ease of Shimano Di2 electronic shifting they offer an advantage in any race. More aerodynamic with better grip feeling allows for optimum power to be transmitted while maintaining a firm grip Intergrated switch button inside offers intuitive shifting control without hand release