Topstone Carbon 2 L

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Nothing is impassable

The best gravel bike for anything from dirt roads to singletrack trails. With the grip and comfort of the Kingpin suspension, nothing is off-limits.

Where it thrives

Gravel and Dirt Roads, Rough Pavement, Trails

What it's built for

Gravel riding, back road exploring, bike packing and off-road adventures

Highlights

Lightweight Topstone Carbon frameset with Kingpin suspension / SmartSense Light equipped
Shimano GRX 800 11-speed gravel group / SAVE Carbon seatpost
WTB KOM Light rims

Nothing is Impassable

Kingpin Suspension

Delivering a smooth ride without the added weight and complexity of a shock and links, Kingpin is our answer for the most demanding gravel riders. Whether you need more comfort to go long, more traction to push beyond or more give to take on the tech - Kingpin is the maintenance-free, lightweight answer to your prayers.

Get to Know Kingpin Suspension

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Ride Brilliantly

On every ride, SmartSense has your back. SmartSense’s system of intelligent lights (and optional rear-facing radar) increases your visibility out on the open road and makes it easy to ride smart.

Features

Engineered Simplicity

Low-friction bushings on the Kingpin thru-axle offer smooth action, maintenance-free reliability and over 100 grams of weight savings vs conventional cartridge bearings.

Load Up. Roll Out.

With plentiful gear and waterbottle mounts on the frame and fork, Topstone Carbon is ready to load up and go long.

Corner like a Boss

Rail through the rough and come out smiling. Led by our OutFront steering geometry, the Topstone Carbon offers up handling that's serenely stable in the chop, and light & nimble everywhere else.

Topstone Carbon Explained

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Specs

Details

Platform
Topstone Carbon
Model Name
Topstone Carbon 2 L
Model Code
C15252U

Frameset

Frame
Topstone Carbon, Kingpin suspension system, SmartSense equipped, Proportional Response construction, 12x142mm thru-axle, 27.2 dropper post ready, BSA 68mm threaded BB, DirectLine internal cable routing, 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
Integrated, Carbon, 1-1/8" - 1-1/2"

Drivetrain

Rear Derailleur
Shimano GRX 810, Shadow RD+
Front Derailleur
Shimano GRX 800, braze-on
Shifters
Shimano GRX 800, 11-speed
Chain
Shimano HG701, 11-speed
Crank
Shimano GRX 800, 48/31 (Europe/UK - FSA Gossamer Pro Modular AGX+, 46/30)
Rear Cogs
Shimano HG800, 11-34, 11-speed
Bottom Bracket
Shimano BSA 68

Brakes

Brakes
Shimano GRX 800 hydraulic disc, 160/160mm MT800 rotors
Brake Levers
Shimano GRX 800 hydraulic disc

Wheels

Rims
WTB KOM Light i23 TCS, 700c, 28h, tubeless ready
Spokes
Stainless Steel, 14g
Tire Size
45
Wheel Size
700c
Hubs
(F) Formula cartridge bearing, 12x100mm centerlock / (R) Formula cartridge bearing, 12x142mm centerlock
Tires
WTB Riddler TCS Light, 700x45c, tubeless ready (Europe/UK - Vittoria Terreno Dry 700x38c ANT tubeless compatible)
Front Tire
WTB Riddler TCS Light, 700x45c, tubeless ready (Europe/UK - Vittoria Terreno Dry 700x38c ANT tubeless compatible)
Rear Tire
WTB Riddler TCS Light, 700x45c, tubeless ready (Europe/UK - Vittoria Terreno Dry 700x38c ANT tubeless compatible)