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
Stem		Cervélo ST36 Alloy, w Cable Management
Handlebar		Zipp Service Course 70 XPLR Alloy, 31.8mm clamp, 5 degree flare, 11 degree outsweep
Seatpost		Cervélo Alloy 27.2 15mm Offset
Saddle		Cervélo Saddle
Brake Calipers		SRAM Apex
Brake Rotor		SRAM Centerline 6-Bolt
Rear Derailleur		SRAM Apex XPLR, 12 speed
Cassette		SRAM Apex XLPR, 11-44, 12 speed
Chain		SRAM Apex, 12 speed
Crankset		SRAM Apex 1, 40T, DUB Wide
Bottom Bracket		SRAM DUB Wide, T47 BBright
Wheels		Front: Alexrims Boondocks 7D, 12x100mm, 28H, 23mm IW, 6 bolt, tubeless compatible Rear: Alexrims Boondocks 7D, 12x142mm, 28H, 23mm IW, HG freehub, 6 bolt, tubeless compatible
Thru Axles		Cervelo Aero Thru-Axles, 12×100 142
Tires		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