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Road Bikes
2025 Cannondale Topstone Carbon 3 GRX - 1x Road Bike
One chainring, endless possibilities. The Topstone 3 GRX - 1X delivers simplicity without sacrificing performance. A Shimano GRX610/820 blended group keeps shifting precise and reliable, while KingPin suspension takes the sting out of rough terrain. WTB tires keep you connected to the trail, making every ride a good one—whether it’s a quick lap or a full-day escapade.
SPECIFICATION :
| 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 |
| Rims | WTB ST i25 TCS, 28h, tubeless ready |
| Spokes | Stainless Steel, 14g |
| Tire Size | 45 |
| Wheel Size | 700c |
| Hubs | (F) Shimano TC500, 12x100mm centerlock / (R) Shimano TC500, 12x142mm centerlock |
| Tires | 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 | Large StashBag downtube storage bag, tubeless valve stems |
| Ingestion Hazard | WARNING - INGESTION HAZARD: This product contains a button cell or coin battery. DEATH or serious injury can occur if ingested. A swallowed button cell or coin battery can cause Internal Chemical Burns in as little as 2 hours. KEEP new and used batteries OUT OF REACH OF CHILDREN. Seek immediate medical attention if a battery is suspected to be swallowed or inserted inside any part of the body. |
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