SRAM unveils cyclo-cross-specific drivetrain, featuring single chainring and 11-speed cassette

Launched in plenty of time for the 2014/15 cyclo-cross season, SRAM is obviously keen to make hay while the sun is shining on its three-out-of-four gold medals at the recent Cyclo-cross World Championships in Hoogerheide.

Taking inspiration from both its pro athletes’ requests for lighter weight and greater simplicity, and technical knowledge gained from its XX1 mountain bike groupset, the Chicago-based company has launched Force CX1.

Using just a single front chainring and absolutely no chain catcher, it’s the set up David Millar wished he had during the 2004 Tour de France prologue (when his chain fell off thanks to a lack of front mech).

At the heart of the system is SRAM’s chainring profile, which they call X-Sync. A wide tooth, narrow tooth profile is used, which sounds odd but bare with us as it’s actually quite simple. By making the chainrings only in even numbers, SRAM has been able to alternate the tooth sizes to fit within the available spaces in the chain links, this stops the chain from being able to derail itself. Simple but clever.

As a full cyclo-cross specific groupset, SRAM’s Force CX1 is a first for the industry.

Contact: www.sram.com

SRAM Force CX1

Force CX Crankset
Unidirectional carbon crank arm with forged alloy spider and X-Sync chainring. Chainrings available in 38,40,42,44 and 46 teeth. BB30 cranks weight 542g, £189, chainring from £96

SRAM Force CX1 chainset showing alternate narrow and wide teeth on chainring

SRAM Force CX1 chainset showing alternate narrow and wide teeth on chainring

SRAM Force CX1

Force CX1 ErgoDynamic lever
Red based hood profile and lever shape with reach adjust. Left hood weight 119g, £86; Right hood weight 158g, £147

SRAM Force CX1

Force CX1 ErgoDynamic lever
Red based hood profile and lever shape with reach adjust. Left hood weight 119g, £86; Right hood weight 158g, £147

SRAM Force CX1

Force CX1 rear derailleur
X-Sync jockey wheels, X-Horizon straight parallelogram, Roller Bearing Clutch to control chain tension and Cage Lock. Weight 261g, £178

SRAM Force CX1

Force CX1 rear derailleur
X-Sync jockey wheels, X-Horizon straight parallelogram, Roller Bearing Clutch to control chain tension and Cage Lock. Weight 261g, £178

SRAM Force CX1

Force CX1 rear derailleur
X-Sync jockey wheels, X-Horizon straight parallelogram, Roller Bearing Clutch to control chain tension and Cage Lock. Weight 261g, £178

SRAM Force CX1

PG-1170 cassette
Semi spider design comes in 11-276, 11-28, 11-32 sizes, Weight from 247g, £81

SRAM Force CX1 chain

PC-1170 chain
Chamfered outer plates and chrome hardened pin for smooth long lasting chain. Weight 242g, £41

SRAM Force CX1

SRAM Force CX1 groupset

* All weights and prices as supplied by SRAM