Gravel Bike with Full Carbon Frame and Fork With a UD carbon frame, tapered headtube and full carbon forks, the Substance carbon is born tough and light. This bike can go as hard and fast as you want it to or be a lightweight friend for a long-distance relaxed epic. With the addition of mounts for luggage, mudguards and multiple bottles, it’s also capable of the biggest bike packing or touring adventures. Shimano GRX 600 Gravel Bike Groupset The Substance CRS-2 is fitted with Shimano’s excellent GRX 600 groupset – the world’s first dedicated gravel groupset. Paired with the GRX 810 rear mech, this 11 speed 2X groupset delivers a smooth and quiet drivetrain, specifically tuned for gravel/adventure riding. Wide, High-Grip WTB Gravel Tyres The Substance CRS-2 is fitted with WTB SpeedTerra Aluminium wheels that are wrapped with big volume WTB Byway TCS 47mm tyres. 650b is perfect for adventure cycling with the large outer diameter keeping your wheels rolling over bumps, whilst the added tyre volume allows you to adjust pressures depending on the terrain for grip, comfort, and luggage weight. The finishing kit is made up of a Vitus 6061 aluminium handlebar, stem, and seat post. The handlebars feature a flat top section for added comfort on and off-road, with the Substance CR-2 featuring a 3-degree bar flare. Please Note: This bike has a max tyre clearance of 650b x 47c Or 700 x 42c Built, Tuned and Ready to Ride Rest assured that each bike is fully built and tuned by Wiggle’s team of qualified bike mechanics to ensure your bike arrives in perfect condition. We supply all bikes with a set of plastic pedals, a pedal wrench and a multi-tool kit. Find out which size fits you by clicking the size chart tab.