RED AXS E1 Front Derailleur Trainers a 27mm-28mm tire is the

a 27mm-28mm tire is the optimal labeled tire width

offering 34

and breathe racing

The perfectly tuned structure not only makes for breathtaking performance but also for a total weight of only 1

RED AXS E1 Front Derailleur Trainers a 27mm-28mm tire is theSRAM RED AXS E1 Front Derailleur Not just fast and reliable front shifts, but silent running across the whole cassette. The SRAM RED AXS E1 front derailleur uses Yaw technology with electronic trim to ensure the fastest possible shift while eliminating chain rub in all combinations, with the easiest setup around, thanks to a brilliant new tool. FEATURES AXS enabled for easy wireless setup, monitoring, personalization, and reliability Refined cage