Aspero GRX 1 RX610The evolved Cervlo spero builds upon its legacy of gravel speed with subtle yet significant upgrades, delivering a faster, more comfortable, and more versatile ride for tackling demanding terrain. Featuring improved aerodynamics for energy conservation on long hauls, increased compliance for late race comfort, and enhanced mud clearance derived from cyclocross experience, the new spero also adopts a user friendly threaded bottom bracket and future