All details on Availability & Size Recommendation can be found below the product specifications.
Explore further. Ride freer.
An amazingly capable, versatile gravel road bike. Built for chasing horizons, exploring routes less travelled or accelerating your commute.
Model Description
Purpose with personality. The Topstone EQ takes all-road capability to the next level with Shimano GRX 400 drivetrain dependability and a rugged SmartForm C2 Alloy frame. Equipped with fenders, a rear rack, and dynamo lights, it’s the ultimate companion for urban commutes, winding gravel paths, or wherever practicality and adventure collide.
What it's for
Performance commuting, exploring, bikepacking, gravel-riding
Highlights
- Lightweight SmartForm C2 Alloy frame w/ full carbon fork
- Reliably precise shifting from the Shimano GRX 400, wide-range, 2x10-speed gravel drivetrain
- Powerful, controllable braking from Shimano’s GRX400 hydraulic disc brakes
- Equipped for weekend missions and weekday mobility with dynamo-powered lights, fenders, and rack
- Selle Royal SRX Open saddle balances supportive padding and a pressure-relieving central channel for performance comfort
Product Specifications
Chassis
| Frame: | Lightweight Topstone SmartForm C2 aluminum frame, Flat Mount disc brake mount, tapered head tube, 12 x 142mm thru-axle, StraightShot internal cable routing, bottle cage mounts |
|---|---|
| Fork: | Topstone carbon, 12x100mm thru-axle, internal routing, 1 1/8"–1.5" tapered steerer, 55mm offset |
| Shock: | - |
Drivetrain & Brakes
| Shifters: | Shimano GRX (ST-RX400), 2 x 10-speed |
|---|---|
| Rear derailleur: | Shimano GRX (RD-RX400-GS), Shadow RD+ cage |
| Front derailleur: | Shimano GRX (FD-RX400-F), Braze-on mount |
| Crankset: | Shimano GRX (FC-RX400-2), 46/30T chainrings |
| Bottom bracket: | Shimano (BB-RS500), sealed |
| Pedals: | Not included (order here separately) |
| Chain: | Shimano HG54, 10-speed |
| Cogs: | Shimano CS-HG500-10, 10-speed, 11–34T |
| Brakes: | Shimano GRX (BR-RX400), hydraulic disc brakes, 160mm rotors (f/r) |
| Brake levers: | Shimano GRX (ST-RX400) |
Wheels
| Front hub: | Shutter Precision PL-7, 28 hole, 12 x 100mm thru-axle |
|---|---|
| Rear hub: | Shimano (FH-TC500), 28 hole, 12 x 142mm thru-axle, Centerlock disc mount |
| Rims: | GXD 1.0, 28 hole, tubeless-ready |
| Tires: | WTB Vulpine TCS Light, 700 x 37c, tubeless-ready |
Components
| Stem: | Cannondale 3, 6061 aluminum, ±7° angle, 31.8mm clamp |
|---|---|
| Handlebar: | Cannondale 3, butted 6061 aluminum, 16° Flare Drop |
| Headset: | Integrated |
| Saddle: | Selle Royal SRX Open |
| Seatpost: | Cannondale 3, 6061 aluminum, 27.2 x 350mm |
| Others: | Herrmans Nordic MR9 dynamo front light, Herrmans H-Trace dynamo rear light, Tubus rear carrier (20kg), Curana Apollo fenders |
Availability & Size Recommendation
XS
approx. 1 week
147 cm165 cm147–165 cm
S
in stock
160 cm175 cm160–175 cm
M
in stock
170 cm185 cm170–185 cm
L
approx. 1 week
177 cm193 cm177–193 cm
XL
approx. 1 week
190 cm203 cm190–203 cm
Note: size ranges may overlap — in this case, personal preference applies. We’re happy to advise you.
Video – Topstone EQ
| Model year | 2025 |
| Intended use | Gravel |
| Wheel size | 28" |
| Frame material | Aluminum |
| Shifting type | Derailleur |
| Gears | 20 |
