Lux CF 9.9


A full-carbon 29er marathon bike aimed at racers, for slaying climbs as much as descents.

The Lux CF 29er is Canyon's. new marathon bike, with a full carbon frame, flex-carbon stays and 100mm of travel. It’s pitched squarely at racers and, as testament to its potential, Alban Lakata recently raced one to victory in the famous Leadville lOO-mile marathon, beating two hardtail racers in the process.

Weight saving is the name of the game in competition, and by eliminating the chainstay suspension pivots Canyon has chopped 100g from the frame, giving a claimed weight ot 1,850g (4.07Ib). The move has also changed the overall suspension design where the 'Flex Pivot’ carbon seatstays work like leaf springs and allow the frame to produce 100mm of rear-wheel travel. A short rocker link tailors the suspension characteristics further, where the suspension starts to ramp up halfway through the travel to resist bottoming.

Canyon has built the frame to be as stiff as it is light, with a tapered head tube, oversized down tube and press-fit bottom bracket. The frame sports 12mm conical thru-axle pivots with overloaded angular contact bearings to improve stiffness further. An ‘Impact Protection Unit’ prevents the handlebar damaging the top tube in a crash by limiting rotation, and the frame is compatible with Reverb Stealth dropper-post routing. Interestingly, the frame has a Shimano Di2 battery mount on the non-driveside chainstay. We can only guess at what that could be for...

On a humid test ride around the trails and woods near Canyon's headquarters in Koblenz, Germany, the Lux CF impressed immediately with its sheer force of pace. It's very efficient, and the rear suspension is very active over small roots and rocks, providing ample grip with capacity in reserve for bigger impacts. The geometry and reach out you in a forward-biased riding position, which results in a bike which really excels on the climbs. There’s loads of traction on tap too; I had no trouble on several ridiculously steep pitches covered in loose grave! and roots.

With aggressive race geometry, there is no escaping the CF’s high-speed intentions, but even at a sedate pace it’s well-mannered and easy to warm to, provided going fast uphill is a priority. Short-travel race bikes might not be flavour of the month, but this super-light and super-fast cross-country bike is excellent value and a lot of fun if you want to slay the climbs as much as the descents.

David Arthur

Super-fast and light ride with huge
potential for speed over all terrain.

You won’t be able to blame the bike
for marathon racing hurting so much.