Built for chasing horizons, exploring routes less travelled or accelerating your commute.
Topstone 1 Where it thrives Gravel roads, out in the elements What it's built for Traction, handling, comfort Highlights Light, durable SmartForm C2 Alloy Frame w/ full carbon fork Shimano GRX 800/600 11-speed shifting Shimano GRX 400 hydraulic disc brakes Frame Lightweight SmartForm C2 Alloy, 12x142 thru-axle, tapered headtube, BSA threaded BBm flat mount disc, StraightShot internal cable routing, multiple gear/bottle mounts Fork Topstone Carbon, 1-1/8" to 1.8, 7° Brake Levers Shimano GRX 600 Brakes Shimano GRX 400 hydraulic disc, 160/160mm RT54 rotors Saddle Fizik Aliante Delta, S-alloy rails Seat Post Cannondale 3, 6061 Alloy, 27..5" steerer, 55mm OutFront offset, flat mount disc, internal routing, 12x100 thru-axle, fender/gear mounts Rims/Wheels WTB ST i23 TCS, 28h, tubeless ready Hubs (F) Formula cartridge bearing, 12x100mm centerlock / (R) Formula cartridge bearing, 12x142mm centerlock Spokes Stainless Steel, 14g Tires WTB Riddler TCS Light, 700 x 37c, tubeless ready (Europe/UK - Vittoria Terreno Dry, 700 x 35c, tubeless ready) Crankset Shimano GRX 600 Chainrings 46/30 Bottom Bracket Shimano BB-RS500 Chain KMC X11, 11-speed Front Derailleur Shimano GRX 800, braze-on Rear Derailleur Shimano GRX 810, Shadow RD+ Cassette/Rear Cogs Shimano 105, 11-34, 11-speed Shifters Shimano GRX 600, 11-speed Handlebars Cannondale 3, butted 6061 Alloy, 16 deg flare drop Stem Cannondale 3, 6061 Alloy, 31.