SRAM Red E1 Aero 48t Direct Mount Chainring Black 0° The progressive shape features drops

The progressive shape features drops flared by 30mm

Max 24-hour runtime

a magnetic Fidlock buckle

Improved Cooling: Outfitted with 16 vents and deep internal channeling to keep you comfortable during warm rides

the FC-R8100 crank builds upon Shimano's legendary front shifting and transmission efficiency

SRAM Red E1 Aero 48t Direct Mount Chainring Black 0° The progressive shape features dropsThe SRAM RED E1 Aero 48T is a direct mount chainring built around X SYNC wide narrow tooth technology, which alternates tooth profiles to keep the chain seated under load. Its aerodynamic profile suits time trial and triathlon applications, and the 48 tooth configuration pairs with SRAM RED AXS drivetrains. A laser etched finish adds surface hardness for extended service life. Machined from aluminum, the ring resists flex under sustained power output,