Details

• Platform

  Topstone Carbon
• Model Name

  Topstone Carbon 3 GRX - 1x
• Model Code

  C15195U

Frameset

• 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
• Headset

  Acros IS52/40 ICR

Drivetrain

• Rear Derailleur

  Shimano GRX 822, Shadow SGS
• Shifters

  Shimano GRX 610, 12-speed
• Chain

  Shimano M7100, 12-speed
• Crank

  Shimano GRX 610, 40T: 165mm (47cm), 170mm (51cm), 172.5 (54-56cm), 175mm (58-61cm)
• Rear Cogs

  Shimano SLX M7100, 10-51, 12-speed
• Bottom Bracket

  Shimano BSA 68

Brakes

• Brakes

  Shimano GRX 610 hydraulic disc, 160/160mm RT70 rotors
• Brake Levers

  Shimano GRX 610 hydraulic disc

Wheels

• Rims

  WTB ST i25 TCS, 28h, tubeless ready
• Spokes

  Stainless Steel, 14g
• Tire Size

  45
• Wheel Size

  700c
• Hubs

  (F) Shimano TC500, 12x100mm centerlock / (R) Shimano TC500, 12x142mm centerlock
• Tires

  WTB Riddler TCS Light, 700x45c, tubeless ready

Components

• Handlebar

  Cannondale 3, butted 6061 Alloy, 16 deg flare, 120mm drop: 400mm (47cm), 420mm (51-54), 440mm (56-61cm)
• Stem

  Cannondale C1 Conceal, Alloy, 31.8, -6°: 70mm (47-51m), 80mm (54cm), 90mm (56-58cm), 100mm (61cm)
• Grips

  Cannondale KnurlCork, 2.7mm
• Saddle

  Selle Royal SRX Open
• Seatpost

  Cannondale 3, 6061 Alloy, 27.2x350mm

Extra

• Extra 1

  Large StashBag downtube storage bag, tubeless valve stems