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

Where it thrives
Gravel roads, out in the elements

What it's built for
Traction, handling, comfort

Highlights
Lightweight SmartForm C2 Alloy frame w/ full carbon fork
microSHIFT Advent X, wide range 10-speed group
WTB Riddler Comp tires, 700 x 37c

DETAILS
Platform
Topstone Alloy
Model Name
Topstone 4
Model Code
C15902U
FRAMESET
Frame
Lightweight SmartForm C2 Alloy, 12x142 thru-axle, tapered headtube, BSA threaded BBm flat mount disc, StraightShot internal cable routing, 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, fender/gear mounts
Headset
Integrated, 1-1/8" - 1-1/2"
DRIVETRAIN
Rear Derailleur
microSHIFT Advent X
Shifters
microSHIFT Advent X, 10-speed
Chain
KMC X10, 10-speed
Crank
Prowheel, Charm 40T
Rear Cogs
microSHIFT, 11-48, 10-speed
Bottom Bracket
Cartridge, square taper
BRAKES
Brakes
Promax Render R mechanical disc, 160/160mm rotors
Brake Levers
microSHIFT Advent X
WHEELS
Rims
GXD 1.0, 28h
Spokes
Stainless Steel, 14g
Tires
WTB Riddler Comp, 700 x 37c
Tire Size
37
Wheel Size
700c
Hubs
(F) Formula alloy, 12x100mm / (R) Formula alloy, 12x142mm
Front Tire
WTB Riddler Comp, 700 x 37c
Rear Tire
WTB Riddler Comp, 700 x 37c
COMPONENTS
Handlebar
Cannondale 3, butted 6061 Alloy, 16 deg flare drop
Stem
Cannondale 3, 6061 Alloy, 31.8, 7°
Grips
Cannondale Bar Tape, 3.5mm
Saddle
Cannondale Stage CX
Seatpost
Cannondale 4, 6061 Alloy, 27.2 x 350mm
EXTRA
Extra 1
Removable fender bridge
WEIGHT: XS, SM, MD, LG, XL - BIKE AND FRAME WEIGHTS MAY VARY IN FINAL PRODUCTION.
PLEASE NOTE THAT, BASED ON COMPONENT AVAILABILITY AND OTHER FACTORS, SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.