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 compatible / Integrated Cannondale App connectivity
Shimano GRX 400 10-speed shifting & hydraulic disc brakes
WTB ST i23 TCS rims

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.

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 4
Model Code
C15402U
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
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, 1-1/8" - 1.5"
DRIVETRAIN
Rear Derailleur
Shimano GRX 400, Shadow RD+
Front Derailleur
Shimano GRX 400, braze-on
Shifters
Shimano GRX 400, 10-speed
Chain
KMC X10, 10-speed
Crank
FSA Gossamer Pro Modular AGX+, 46/30
Rear Cogs
SunRace, 11-36, 10-speed
Bottom Bracket
FSA Mega EXO
BRAKES
Brakes
Shimano GRX 400 hydraulic disc, 160/160mm RT54 rotors
Brake Levers
Shimano GRX 400 hydraulic disc
WHEELS
Rims
WTB ST i23 TCS, 700c, 28h, tubeless ready
Spokes
Stainless Steel, 14g
Tires
WTB Riddler Comp, 700x45c (Europe/UK - Vittoria Terreno Dry 700x40c)
Tire Size
45
Wheel Size
700c
Hubs
(F) Formula cartridge bearing, 12x100mm centerlock / (R) Formula cartridge bearing, 12x142mm centerlock
Front Tire
WTB Riddler Comp, 700x45c (Europe/UK - Vittoria Terreno Dry 700x40c)
Rear Tire
WTB Riddler Comp, 700x45c (Europe/UK - Vittoria Terreno Dry 700x40c)
COMPONENTS
Handlebar
Cannondale 3, butted 6061 Alloy, 16 deg flare drop
Stem
Cannondale 3, 6061 Alloy, 31.8, 7°
Grips
Fizik Solocush Soft, 3mm
Saddle
Fizik Aliante Delta, S-alloy rails
Seatpost
Cannondale 3, 6061 Alloy, 27.2x350mm
CONNECTIVITY
Wheel Sensor
Cannondale Wheel Sensor
EXTRA
Extra 1
StrapRack tool/stuff holder
PLEASE NOTE THAT, BASED ON COMPONENT AVAILABILITY AND OTHER FACTORS, SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.