The setup of the tubeless wheels gave me issues. The tubeless tape was installed on top of rim tape so after 2 weeks of riding, the seal wasn't holding. The bike itself is great but the mechanics who put it together let me down
Product Details
Cannondale Topstone Carbon 3 GRX Gravel Bike
The Cannondale Topstone Carbon 3 GRX Gravel Bike is the ultimate all-round gravel bike, built to go anywhere, carry everything, and keep going. The lightweight full carbon frameset features Kingpin rear suspension, Proportional Response size-specific construction, and StashPort downtube storage for added convenience.
Equipped with a single chainring and a wide-range SLX 12-speed cassette, this combination of Shimano’s GRX820 and GRX610 gravel groups provides excellent performance and value. Durable and dependable, the WTB ST i25 rims, Shimano hubs, and WTB Riddler 45c gravel tyres offer a solid and reliable setup.
The Cannondale 3 flared handlebars provide comfortable, gravel-friendly hand positions, making long rides easier. The integrated Cannondale Wheel Sensor delivers hyper-accurate speed, distance, and route data, along with service reminders via the Cannondale App.
Features
- 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
- Brakes: Shimano GRX 610 hydraulic disc, 160/160mm RT70 rotors
- Brake Levers: Shimano GRX 610 hydraulic disc
- Hubs: Front - Shimano TC500, 12x100mm centerlock / Rear - Shimano TC500, 12x142mm centerlock
- Rims: WTB ST i25 TCS, 28h, tubeless ready
- Spokes: Stainless Steel, 14g
- Tyres: WTB Riddler TCS Light, 700x45c, tubeless ready
- Handlebar: Cannondale 3, butted 6061 Alloy, 16° flare drop
- Grips: Cannondale KnurlCork, 2.7mm
- Stem: Cannondale C1 Conceal, Alloy, 31.8, -6°
- Saddle: Selle Royal SRX Open
- Seatpost: Cannondale 3, 6061 Alloy, 27.2x350mm
- Extras: Large StashBag downtube storage bag, tubeless valve stems
Highlights
- Topstone Carbon, Kingpin suspension system frame
- Shimano 1x GRX Grouspet
- WTB KOM Team i25 Wheelset
- Fizik Terra Argo X7 Saddle
Specifications
- Model
- Topstone Carbon 3 GRX
- Bottom Bracket [Maker]
- Shimano
- Bottom Bracket Standard
- BSA
- Brakes [Kind]
- Hydraulic Disc
- Brakes [Maker]
- Shimano
- Brakes [Model]
- GRX 610
- Cassette [Gearing]
- 10-51
- Cassette [Maker]
- Shimano
- Cassette [Model]
- SLX M7100
- Chain [Maker]
- Shimano
- Chain [Model]
- M7100
- Chainring [Gearing]
- 40
- Crank [Maker]
- Shimano
- Crank [Model]
- GRX 610
- Discipline Compatibility
- Gravel
- E-Bike
- No
- F Hub [Maker]
- Shimano
- F Hub [Model]
- TC500
- Family
- Topstone
- Fenders Mounts
- Yes
- Fork [Axle Diameter]
- 12 mm
- Fork [Axle Type]
- Thru-Axle
- Fork [Brake Type]
- Disc
- Fork [Maker]
- Cannondale
- Fork [Material]
- Carbon
- Fork [Model]
- Topstone Carbon
- Fork [Rake]
- 55 mm
- Fork [Wheel Size]
- 700c
- Frame [Hanger Standard]
- UDH
- Frame [Material]
- Carbon
- Frameset
- No
- Gearing [Configuration]
- 1x
- Gearing [Kind]
- Conventional
- Gender
- Unisex
- Handlebar [Flare]
- 16 degree
- Handlebar [Kind]
- Drop
- Handlebar [Maker]
- Cannondale
- Handlebar [Material]
- Aluminium
- Handlebar [Shape]
- Flared Drop
- Headset [Maker]
- Acros
- Headset [SHIS]
- IS52/40
- R Hub [Maker]
- Shimano
- R Hub [Model]
- TC500
- Rack Mounts
- No
- RD [Maker]
- Shimano
- RD [Model]
- GRX 822
- Saddle [Maker]
- Selle Royal
- Seatpost [Diameter]
- 27.2
- Seatpost [Kind]
- Rigid
- Seatpost [Length]
- 350 mm
- Seatpost [Maker]
- Cannondale
- Seatpost [Material]
- Aluminium
- Shifters [Maker]
- Shimano
- Shifters [Model]
- GRX 610
- Shifting
- Mechanical
- Stem [Angle]
- -6 degree
- Stem [Clamp Diameter]
- 31.8
- Stem [Maker]
- Cannondale
- Stem [Material]
- Aluminium
- Suspension Configuration
- Rigid
- Tires [Maker]
- WTB
- Tires [Width]
- 45 mm
- Wheels [Configuration]
- Front+Rear
- Wheels [Kinds]
- Tubeless Ready
- Wheelset [Inner Width]
- 25 mm
- Wheelset [Maker]
- WTB
- Wheelset [Material]
- Aluminium
- Wheelset [Model]
- ST i25 TCS
- Product code
- 1901128 / 54294088810842
Size Guide

All measurements in mm unless otherwise stated.
Reviews
This is my first gravel bike after many years of road cycling and mountain biking. It's a superb bike which handles sweetly on and off road. It's a delight to climb with, and looks super cool in 'orange slice' paint. The 42mm tyres setup tubeless are super grippy on the trail and roll nicely on the tarmac too.
Shipping & Returns
Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.
Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.
Q & A
1 question answered
Could you please tell me what the seatpoat layback is on the cannondale topestone 3 ?
Hi there, This will be dependant on size, Please contact the sales team with what you are after and they will help, Many thanks Joe W









