Topstone Carbon 1 Lefty

Hollowgram G-S 27 Carbon Wheels

Light, smooth and guaranteed for life, these carbon hoops were made for gravel! The 27mm internal width is perfect for bigger tires and the 21mm deep profile takes the sting out of the rough and rugged. Just 1450 grams/pair.

OutFront Steering Geometry

Confident stability meets nimble agility. An extra long fork offset paired with a slack head angle keeps the steering light and lively, yet delivers unreal confidence at speed and in the rough stuff.

Connected

An integrated wheel sensor delivers hyper-accurate speed, route and distance info while you ride, registers your bike, reminds you of needed service and more, all through the free Cannondale App.

Dropper Ready

Built to accept an internally-routed 27.2mm dropper seatpost, which shouldn't really be a surprise on a bike this off-road capable.

Lefty Oliver Carbon

The ultimate gravel suspension fork. Unique single-sided design and needle-bearing internals deliver unmatched steering precision and smoothness for unreal control and comfort. Just 1,340 grams.

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.

Clearance and Compatibility

The new dropped chainstay design lets you run big volume tires (up to 700x45mm or 27.5x2.1", with 6mm of mud-shedding clearance on each side), all with a standard dish rear wheel for easy interchangeability.

Tuned for the Rider

Our Proportional Response size-specific construction creates optimal frame stiffness and compliance for each frame size, so that every rider has the ideal ride feel and comfort of Kingpin.

SmartSense Ready

Make every ride better with enhanced visibility and awareness. The SmartSense-ready frame means it's easy to upgrade to our system of intelligent running lights and rear-facing radar.

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.

Specs

DETAILS

Platform
Topstone Carbon
Model Name
Topstone Carbon 1 Lefty
Model Code
C15102U

FRAMESET

Frame
Topstone Carbon, Kingpin suspension system, SmartSense compatible, 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
Lefty Oliver Carbon, 30mm travel, lockout, Chamber Damper w/ All-Over tune, ISO High-Ride air spring, tapered steerer, 700c, 55mm offset
Headset
Integrated, Carbon, 1-1/8" - 1-1/2"

DRIVETRAIN

Rear Derailleur
SRAM Force eTap AXS XPLR
Shifters
SRAM Force eTap AXS, 12-speed
Chain
SRAM Force, 12-speed
Crank
SRAM Force Direct Mount, 40T
Rear Cogs
SRAM XG-1271 XPLR, 10-44, 12-speed
Bottom Bracket
SRAM DUB BSA Road 68 Wide

BRAKES

Brakes
SRAM Force eTap AXS hydraulic disc, 160/160mm CenterLine rotors
Brake Levers
SRAM Force eTap AXS

WHEELS

Rims
HollowGram G-S 27 Carbon, 700c, 27mm internal width, 21mm deep, 28h, hookless, tubeless compatible
Spokes
Formula Grand Forza, double butted
Tire Size
44
Wheel Size
700c
Hubs
(F) HollowGram, Lefty, centerlock / (R) HollowGram 12x142mm w/ DT Swiss 350 internals, centerlock
Tires
WTB Raddler TCS Light, 700x44c, tubeless ready (Europe/UK - Vittoria Mezcal III 700x44c ANT tubeless compatible)
Front Tire
WTB Raddler TCS Light, 700x44c, tubeless ready (Europe/UK - Vittoria Mezcal III 700x44c ANT tubeless compatible)
Rear Tire
WTB Raddler TCS Light, 700x44c, tubeless ready (Europe/UK - Vittoria Mezcal III 700x44c ANT tubeless compatible)