Topstone Carbon 3 GRX

The Topstone 3 GRX - 1X delivers simplicity without sacrificing performance and the ultimate all-round gravel bike. Go anywhere, bring everything and then keep on going. One chainring, endless possibilities. A Shimano GRX610/820 blended group keeps shifting precise and reliable, while KingPin suspension takes the sting out of rough terrain. WTB tires keep you connected to the trail, making every ride a good one - whether it’s a quick lap or a full-day escapade.

• Suggested Use
  • Gravel/Road
• Frame
  • Topstone Carbon, Kingpin suspension system, Proportional Response construction, downtube Stashport, internal cable routing, 12x142mm thru-axle, 27.2 dropper post ready, UDH, BSA 68mm threaded BB, flat mount disc, removable fender bridge, multiple gear/bottle mounts
• Fork
  • Topstone Carbon, 1-1/8" to 1.5" steerer, 55mm OutFront offset, flat mount disc, internal routing, 12x100 thru-axle, triple bottle/gear mounts, fender mounts
• Handlebars
  • Cannondale 3, butted 6061 Alloy, 16 deg flare, 120mm drop: 400mm (47cm), 420mm (51-54), 440mm (56-61cm)
• Brakes
  • Shimano GRX 610 hydraulic disc, 160/160mm RT70 rotors
• Derailleur 
  • Rear: Shimano GRX 822, Shadow SGS
• Shift Levers
  • Shimano GRX 610, 12-speed
• Crankset
  • Shimano GRX 610, 40T: 165mm (47cm), 170mm (51cm), 172.5 (54-56cm), 175mm (58-61cm)
• Bottom Bracket
  • Shimano BSA 68
• Chain
  • Shimano M7100, 12-speed
• Cassette
  • Shimano SLX M7100, 10-51, 12-speed
• Wheels
  • Rims: WTB ST i25 TCS, 28h, tubeless ready
  • Hubs: (F) Shimano TC500, 12x100mm centerlock / (R) Shimano TC500, 12x142mm centerlock
• Tires
  • WTB Riddler TCS Light, 700x45c, tubeless ready
• Saddle
  • Selle Royal SRX Open
• Seatpost
  • Cannondale 3, 6061 Alloy, 27.2x350mm