The Topstone 1 Gravel Bike is an amazingly capable, versatile gravel road bike. Built for chasing horizons, exploring routes less travelled or accelerating your commute. It s your perfect gravel road exploring machine which gives you traction, handling, and comfort.Lightweight Smart Form C2 Alloy frame with full carbon forkShimano GRX 800/600 2x 11-speed gravel groupsetWTB ST i23 TCS rims with Vittoria Terreno Dry folding bead (tubeless READY) 700x35c Black/GreyFull Carbon Fork - Light, comfortable, and precise. An all-new carbon fork features three mount bosses on each leg for maximizing cargo capacity, plus an easy mounting point for fenders - letting you ride any adventure in any condition.OutFront Steering Geometry - Confident stability meets nimble agility. An extra-long fork offset paired with a slack head angle keeps the steering light and lively yet delivers unreal confidence at speed and in the rough stuff.Dropper Ready - Built to accept an internally-routed 27.2 dropper seatpost, which shouldn t really be a surprise on a bike that's this off-road capable.Load Up. Roll Out - With plentiful gear and water bottle mounts on the frame and fork, Topstone is ready to load up and go long.Straightforward, reliable and a whole hell of a lotta fun, the Topstone Alloy is a gravel bike crafted for those with a taste for adventure and value. Roll light and free, or load it up for a long haul, Topstone s comfortable ride, confident handling and up-for-anything capability make it the perfect partner on any road, anywhere. Clearance for big 45mm tyres lets you push further into the rough stuff and enjoy more grip and comfort on every ride. Easy to Live With. Easy to Love. Everything on the Topstone is designed for simplicity, ease of use and compatibility. Whether you're setting out on a big ride or taking the long way to work - less down time, more ride time.Size Guide:XS - 4'10" to 5'5"SM - 5'3" to 5'9"MD - 5'7" to 6'1"LG - 5'10" to 6'4"XL - 6'0" to 6'8"