This gravel-optimised bike is equipped with a Shimano GRX RX400 2×10-Speed drivetrain that provides gears for climbing efficiently on or off-road, and Shimano Tiagra hydraulic disc brakes ensure you always have powerful all-weather braking at your fingertips. Also, this bike is engineered with modern geometry, rolls upon strong and stable thru-axles and is compatible with dropper seatposts. Shimano 2×10-Speed Drivetrain and Hydraulic Disc Brakes This bike is equipped with a reliable and smooth-shifting Shimano Tiagra 2×10-Speed drivetrain with a gear ratio that’s ideal for off-road riding. This drivetrain ensures you have gears to efficiently tackle gravel routes and forest trails, giving you superb pedalling performance and a comfortable long-distance riding experience. Plus, it’s fitted with Shimano Tiagra hydraulic disc brakes that ensure you have a powerful and dependable all-weather braking performance at your fingertips. Tubeless Ready WTB Rims and Tyres Rolling on WTB ST i23 Tubeless Ready rims wrapped in Tubeless Ready Riddler tyres, this bike travels fast and achieves exceptional traction in all riding conditions. Plus, its carbon fork provides stable handling while soaking up vibrations from the terrain. Finally, this GT Grade Expert Gravel Bike features WTB Riddler Tubeless Ready tyres for a fast-rolling and high-grip performance anywhere. 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.