R5 has one job—get to the top, fast. But for all the glory and fanfare that comes with a summit finish, they’re rarely the only climb of the day. And while a race isn’t usually won on a descent, they can certainly be lost. A climbing bike that can’t carve a hairpin is a bit like a cup of decaf coffee. This is the fourth iteration of the R5, and while weight and stiffness have varied over the years, the handling, poise, and unmatched prowess on a descent have been consistent since day one.

The new R5 frame is 130g lighter than the previous model—a 16% reduction from an already-light frame. And while aerodynamics weren’t a focus with this frame the way they would be on an S5 or P5, bringing the cables inside reduced drag by 25g.

Specifications

Component	Specification
Fork	Cervélo All-Carbon, Tapered R5 Fork
Headset	FSA IS2 1-1/4 x 1-1/2
Thru Axles	Cervelo Aero Thru-Axles, 12x100/142, Removable Handle
Wheels	New Reserve 34/37mm DT240, 24h (F), 24h (R), 22.6mm IW (F), 21.6mm IW (R), Center-Lock, Tubeless Ready
Tires	Vittoria Corsa TLR G2.0 25c
Crankset	Shimano Dura-Ace 9200 52/36
Bottom Bracket	Ceramic Speed 24
Chain	Shimano CN-M9100, 12 spd
Front Derailleur	Shimano Dura-Ace Di2 9250, 12 spd
Rear Derailleur	Shimano Dura-Ace Di2 9250, 12 spd
Cassette	Shimano Dura-Ace CS-R9200, 12 spd, 11-30
Shifters	Shimano Dura-Ace Di2 9270, 12 spd
Handlebar	Cervélo HB13 Carbon
Stem	Cervélo ST31 Carbon
Brake Calipers	Shimano Dura-Ace 9270 Hydraulic Disc
Saddle	Prologo Scratch M5 NACK OR Selle Italia FLITE BOOST SuperFlow Carbon
Seatpost	Cervelo SP24 Seatpost
Brake Rotor	Shimano RT-MT900, 160mm
Accessories	Cervelo Faceplate Front Computer/Accessory Mount, Cervelo Rear Accessory Mount