Platform
Topstone Carbon
Model Name
Topstone Carbon 3 GRX - 1x
Model Code
C15195U
Frame
Topstone Carbon, Kingpin suspension system, Proportional Response construction, downtube Stashport, internal cable routing, 12x142mm thru-axle, 27.2 dropper post ready, UDH, BSA 68mm threaded BB, flat mount disc, 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
Acros IS52/40 ICR
Rear Derailleur
Shimano GRX 822, Shadow SGS
Shifters
Shimano GRX 610, 12-speed
Chain
Shimano M7100, 12-speed
Crank
Shimano GRX 610, 40T
Rear Cogs
Shimano SLX M7100, 10-51, 12-speed
Bottom Bracket
Shimano BSA 68
Brakes
Shimano GRX 610 hydraulic disc, 160/160mm RT70 rotors
Brake Levers
Shimano GRX 610 hydraulic disc
Front Hub
Shimano TC500, 12x100mm centerlock
Rear Hub
Shimano TC500, 12x142mm centerlock
Rims
WTB ST i25 TCS, 28h, tubeless ready
Spokes
Stainless Steel, 14g
Tire Size
45
Wheel Size
700c
Tires
WTB Riddler TCS Light, 700x45c, tubeless ready
Front Tire
WTB Riddler TCS Light, 700x45c, tubeless ready
Rear Tire
WTB Riddler TCS Light, 700x45c, tubeless ready
Handlebar
Cannondale 3, butted 6061 Alloy, 16 deg flare drop
Stem
Cannondale C1 Conceal, Alloy, 31.8, -6°
Grips
Cannondale KnurlCork, 2.7mm
Saddle
Selle Royal SRX Open
Seatpost
Cannondale 3, 6061 Alloy, 27.2x350mm
Wheel Sensor
Cannondale Wheel Sensor
Extra 1
Large StashBag downtube storage bag, tubeless valve stems