once favored by top World Tour riders on CSC and the Cervélo Test Team
5" (352mm)
Internal Head Tube
The path a chain takes during each revolution requires passing through a chicane of derailleur cage pulleys diminishing your return on each pedal stroke
SRAM Yaw trimless cage technology with an optimized cage profile for new SRAM RED front chainring combinations
Cervélo Aspero, 2025, GRX RX610, Woodsmoke Ultimate T10+ once favored by top WorldHAUL ASS, NOT CARGO In 2019, spero took the gravel world by storm, heralding a new era of speed in gravel. Fun, but flat out. The new spero remains true to its original brief, but with some improvements: a threaded BB shell, neater cable routing, and a UDH compatible derailleur hanger for those who want to use SRAMs Transmission drivetrains. And its more aero, of course. In the case of spero, aerodynamic performance is less about pure speed as a