Platform
Topstone Alloy
Model Name
Topstone 1
Model Code
C15602U
Frame
Topstone, 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" - 1.5"
Rear Derailleur
Shimano GRX 810, Shadow RD+
Front Derailleur
Shimano GRX 800
Shifters
Shimano GRX 600, 11-speed
Chain
KMC X11, 11-speed
Crank
FSA Gossamer Pro Modular AGX+, 46/30
Rear Cogs
Shimano 105, 11-34, 11-speed
Bottom Bracket
FSA BB386 MegaEvo
Brakes
Shimano GRX 400 hydraulic disc, 160/160mm RT54 rotors
Brake Levers
Shimano GRX 600 hydraulic disc
Rims
WTB ST i23 TCS, 28h, tubeless ready
Spokes
Stainless Steel, 14g
Tire Size
37
Wheel Size
700c
Hubs
(F) Formula cartridge bearing, 12x100mm centerlock / (R) Formula cartridge bearing, 12x142mm centerlock
Tires
WTB Riddler TCS Light, 700x37c, tubeless ready (Europe/UK - Vittoria Terreno Dry, 700x35c, foldable)
Front Tire
WTB Riddler TCS Light, 700x37c, tubeless ready (Europe/UK - Vittoria Terreno Dry, 700x35c, foldable)
Rear Tire
WTB Riddler TCS Light, 700x37c, tubeless ready (Europe/UK - Vittoria Terreno Dry, 700x35c, foldable)
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
Fizik Aliante Delta, S-alloy rails
Seatpost
Cannondale 3, 6061 Alloy, 27.2x350mm
Extra 1
Removable fender bridge