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Classy looks and light weight from this luxury all-mountain crankset.

The SixC is the first genuinely all-mountain-capable crank in carbon fibre to reach the market. Race Face claim it's light enough for cross-country and trail riders, yet burly enough to take on the challenges that 5in and 6in travel bikes bring - claims our test confirmed.

This category-creating crankset is light - at 760g with bottom bracket and rings it's lighter than a Truvativ Noir triple by around 40g, though costing a considerable 200 more - and the cranks feel as stiff as competitive alloy all-mountain alternatives we've tested.

They employ an external bottom bracket, so the steel axle is permanently joined to the driveside arm and the left-hand arm simply slides onto the axle's machined EXI' splines, tightening with an 8mm Allen key (rather than the 10mm key needed for older Race Face cranks). SixC comes in a standard 22/32/44T triple-ring con?guration for the traditionalists and a 22/32T or the 24/36T dual setup we tested (both with 7075 alloy bash rings).

Race Face bottom brackets haven't had the best reputation for the durability of their seals, although the new SixC cups feature a triple wiper seal and Phil Wood grease to keep water and dirt out. The bearings feel smooth and the cranks spin freely when chainless, plus fitting is a breeze.

On our Tomac Snyper with nine-speed Shimano-transmission, the chainline was immediately perfect. We left the removable rubber crank arm caps in place to save the crank ends from rock strike damage, and wondered why more carbon cranks don't come with this handy feature.

We thought the 36T outer ring would take some getting used to (having replaced a 22/32/44T) but after an hour on the Skyline loop at Afan Forest we didn't feel over or under geared, and shifting up and down was on par in terms of speed and efficiency with the Shimano SLX triple. Mashing up hills revealed that the crank arms are extremely stiff, transmitting power with high efficiency. Going down, the 36T ring was fine.

With first blood going to the SixC it sits on its own, as right now there's no other carbon crankset to directly compare with, but we expect this to change with more hardcore carbon trail cranks coming soon.

Full review can be found over at BikeRadar.com

Silverfish UK Ltd. Units 3a-3c Woodacre Court, Saltash Parkway Industrial Estate, Burraton Road, Saltash, Cornwall, United Kingdom, PL12 6LY
Silverfish UK Ltd. (Registration No. 4075057).

Technical specifications are for guidance only and cannot be guaranteed accurate. All offers are subject to availability and while stocks last. Errors and omissions excepted. Silverfish UK Limited acts as a credit intermediary and only offers credit products for Close Brothers Retail Finance. Its registered office is: Close Brothers Group plc, 10 Crown Place, London EC2A 4FT. Credit is subject to application and status.

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