Technical specifications:

the iPad Race Bar is impressively durable

Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12-speed FREEHUB bodies

IFCR7100DX04 - SHIMANO 105 Crankset FC-R7100 12-speed 165mｍ 50-34T Black

sram red axs flattop chain Brand_Pas Normal Studios Technical specifications:Sram Red AXS Flattop Chain for 12 speed SRAM AXS The all new SRAM RED chain was redeveloped from the ground up. The unique link shape allows the chain to be narrower and lighter while increasing strength and providing more space between the outer plates of the chain and the cogs on either side. Result: a quieter chain with faster, more precise shifts.