Explore further. Ride freer.

An amazingly capable, versatile gravel road bike. Built for chasing horizons, exploring routes less travelled or accelerating your commute.

Where it thrives

Gravel roads, out in the elements

What it’s built for

Traction, handling, comfort

Highlights

• Lightweight SmartForm C2 Alloy frame w/ full carbon fork
• Shimano GRX 400 10-speed gravel group
• WTB ST i23 TCS rims

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, Topstones comfortable ride, confident handling and up-for-anything capability make it the perfect partner on any road, anywhere.

Wide Ranging Capabilities
Clearance for big 45mm tires lets you push further into the rough stuff, and enjoy more grip and comfort on every ride.

Details:

• Platform:
  Topstone Alloy

• Model Name:
  Topstone 2

• Model Code:
  C15702U

Frameset:

• Frame:
  Lightweight SmartForm C2 Alloy, 12×142 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 1.5″ steerer, 55mm OutFront offset, flat mount disc, internal routing, 12×100 thru-axle, fender/gear mounts

• Headset:
  Integrated, 1-1/8″ – 1.5″

Drivetrain:

• Rear Derailleur:
  Shimano GRX 400, Shadow RD+

• Front Derailleur:
  Shimano GRX 400

• Shifters:
  Shimano GRX 400, 10-speed

• Chain:
  KMC X10, 10-speed

• Crank:
  FSA Omega AGX+ Alloy, 46/30

• Rear Cogs:
  Shimano HG500, 11-34, 10-speed

• Bottom Bracket:
  FSA Cartridge

Brakes:

• Brakes:
  Shimano GRX 400 hydraulic disc, 160/160mm RT54 rotors

• Brake Levers:
  Shimano GRX 400 hydraulic disc

Wheels:

• Rims:
  WTB ST i23 TCS, 28h, tubeless ready

• Spokes:
  Stainless Steel, 14g

• Tire Size:
  37

• Wheel Size:
  700c

• Hubs:
  (F) Formula cartridge bearing, 12x100mm centerlock / (R) Formula cartridge bearing, 12x142mm centerlock

• Tires:
  WTB Riddler, 700x37c (Europe/UK – Vittoria Terreno Dry, 700x37c)

• Front Tire:
  WTB Riddler, 700x37c (Europe/UK – Vittoria Terreno Dry, 700x37c)

• Rear Tire:
  WTB Riddler, 700x37c (Europe/UK – Vittoria Terreno Dry, 700x37c)

Components:

• Handlebar:
  Cannondale 3, butted 6061 Alloy, 16 deg flare drop

• Stem:
  Cannondale 3, 6061 Alloy, 31.8, 7

• Grips:
  Cannondale Bar Tape, 3.5mm

• Saddle:
  Fizik Aliante Delta, S-alloy rails

• Seatpost:
  Cannondale 3, 6061 Alloy, 27.2x350mm

Extra:

• Extra 1:
  Removable fender bridge

Please note that, based on component availability and other factors, specifications are subject to change without notice.