In addition to the drag reduction, we also dropped the seat stays to give a bit more compliance out back, and reduced front-end stiffness slightly to make the last hours of a long race less painful. Between those dropped seat stays, we added in a bit more clearance for mud, too, taking what we learned from R5-CX (and the Unbound mudfest in 2023). It’s a lot of seemingly small improvements, but they add up to a lot. The result is a bike that feels a lot like the original Áspero, but is faster, more comfortable, and more versatile.

THREADED BOTTOM BRACKET

Aspero uses the asymmetrical T47a threaded bottom bracket we pioneered on R5-CX. It’s a simple, rider-serviceable interface that allows us to deliver the benefits of BBRight in a more user-friendly form. 

UNIVERSAL DERAILLEUR HANGAR

We used SRAM’s Universal Derailleur Hanger (UDH) standard on the new Aspero. It’s ideal if you want to live your best ‘business in the front, party in the back’ life with one of SRAM’s Transmission drivetrains today, and ensures compatibility for future drivetrain developments.

INTERNAL CABLE ROUTING

Aspero shares the same bearing dimensions as R5, Soloist, R5-CX, and Caledonia, which means you can use any combination of bearing caps and stems. Want a super-racy, fully-internal look? Grab the ST31 and HB13 from R5.

Fork		Cervélo All-Carbon, Tapered Aspero Fork
Headset		FSA IS2 1-1 4 x 1-1 2
Seatpost		Cervélo SP19 Carbon 27.2
Left Shifter Brake		Shimano GRX, RX820, 12 speed
Right Shifter Brake		Shimano GRX, RX820, 12 speed
Rear Derailleur		Shimano GRX, RX820, 12 speed
Front Derailleur		Shimano GRX, RX820, 12 speed
Brake Calipers		Shimano GRX RX820
Brake Rotors		Shimano CL800 Centerlock
Thru Axles		Cervélo Aero Thru-Axles, 12×100 142
Crankset		Shimano GRX 820, 48 31T, 12 Speed
Bottom Bracket		FSA, T47 BBright, 24mm spindle
Handlebar		Cervélo AB09 Carbon, 31.8mm clamp, 16 degree flare
Stem		Cervélo ST36 Alloy, w Cable Management
Saddle		Prologo Dimension NDR T4.0
Cassette		Shimano HG710, 11-36, 12 speed
Chain		Shimano M8100, 12 speed
Wheelset		Fulcrum Rapid Red 300, 12×100(F) 142(R), 24H, 24mm IW, HG freehub, centerlock, tubeless compatible
Tire		WTB Vulpine TCS Light Fast Rolling Dual DNA 60tpi 700x40c
Accessories		Smartpak 400A Top Tube Storage Bag

 

Size	48cm, 51cm, 54cm, 56cm, 58cm, 61cm
Colour	Woodsmoke, Sea Ice
Wheel Size	700C