Topstone 3

Explore further. Ride freer.

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

Features

• Lightweight SmartForm C2 Alloy frame w/ full carbon fork
• Smooth, reliable shifting from the microSHIFT Sword, wide-range, 1×10-speed drivetrain
• Powerful, easy-to-maintain Promax Decoder mechanical disc brakes
• Selle Royal SRX Open saddle balances supportive padding and a pressure-relieving central channel for performance comfort

This looks like a variation of the Topstone featuring the microSHIFT Sword groupset—a popular 1x setup known for its reliability and ergonomic hoods. Here are those specs reformatted for you.

Topstone Alloy (microSHIFT Sword) | Technical Specifications

Frameset

• Frame: Lightweight SmartForm C2 Alloy, $12 imes 142ext{mm}$ thru-axle, tapered headtube, BSA threaded BB, StraightShot internal cable routing, multiple gear/bottle mounts.
• Fork: Topstone Carbon, $1ext{-}1/8″$ to $1.5″$ steerer, 55mm OutFront offset, $12 imes 100ext{mm}$ thru-axle, triple bottle/gear mounts, fender mounts.
• Headset: Integrated, $1ext{-}1/8″ ext{ to } 1.5″$.

Drivetrain

• Rear Derailleur: microSHIFT Sword.
• Shifters: microSHIFT Sword, 10-speed.
• Crank: Prowheel Charm, 40T.
• Rear Cogs: microSHIFT, 11-48, 10-speed.
• Chain: KMC X10, 10-speed.
• Bottom Bracket: FSA cartridge, square taper.

Brakes

• Brakes: Promax Decoder R mechanical disc.
• Rotors: 160/160mm centerlock rotors.

Wheels & Tires

• Rims: GXD 1.0, 28h, 23mm internal width, tubeless ready.
• Tires: WTB Riddler TCS Light, $700 imes 37ext{c}$, tubeless ready.
• Hubs: (F) Shimano TC500, $12 imes 100ext{mm}$ / (R) Shimano TC500, $12 imes 142ext{mm}$ (centerlock).
• Spokes: Stainless Steel, 14g.

Components

• Handlebar: Cannondale 3, butted 6061 Alloy, $16^circ$ flare drop.Widths: 400mm (XS), 420mm (SM-MD), 440mm (LG-XL).
• Stem: Cannondale 3, 6061 Alloy, $31.8ext{mm}$, $7^circ$.Lengths: 80mm (XS), 90mm (SM-MD), 100mm (LG-XL).
• Grips: Cannondale KnurlCork, 2.7mm.
• Saddle: Selle Royal SRX Open.
• Seatpost: Cannondale 3, 6061 Alloy, $27.2 imes 350ext{mm}$.
• Pedals: Not included.

Details

• Sizes Available: XS, S, M, L, XL
• Extras: Tubeless valves included.