Having written off my 2022 Topstone 0, I decided to up my game and get a Topstone Carbon 2 GRX. I always loved my Topstone 0, but my new Carbon with Kingpin suspension is even better! I did use a Cane Creek eeSilk+ seat post, but the Kingpin rear suspension on the Carbon gives more compliant, natural feel, and not as 'bouncy' as the Cane Creek. I'm more of a leisure/for fitness type rider, but so far I'm loving it! Plus considering it was nearly a month from write off to getting my Carbon, I was able to get straight back into the distances I'd previously covered - I'm not young so fitness can drop off quickly. I like comfort, or the best compromise, so the only downside is on the Carbon, because of stem design, I cannot use my Cane Creek eeSilk suspension Stem. I must stress, this doesn't detract from the overall feel and performance of the bike, I'll need to adapt! 😆 But the final thing I must add is the staff at Sigma Oakham were fantastic, nothing was too much trouble, they treated me with respect and understanding, especially considering I'm relativly a novice. Big thanks to Jim and Josh. They're not my closest bike shop, but worth the extra travel (3 hour round trip) for quality of service 😁
Product Details
Cannondale Topstone Carbon 2 GRX Gravel Bike
The Cannondale Topstone Carbon 2 GRX Gravel Bike is the ultimate all-round gravel bike, designed 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 convenience on your journey.
Smooth and reliable shifting comes from Shimano’s 2x12-speed GRX820, their top-end mechanical gravel groupset. The WTB KOM Team wheelset, with Shimano hubs and WTB Riddler 45c gravel tyres, ensures a fast and durable ride.
Cannondale’s 2 carbon seatpost and 2 ShortDrop flared bar create a comfortable cockpit for long rides. 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
- Front Derailleur: Shimano GRX 820
- Rear Derailleur: Shimano GRX 820, Shadow RD+
- Shifters: Shimano GRX 820, 12-speed
- Chain: Shimano M8100, 12-speed
- Crank: Shimano GRX 820, 48/31
- Rear Cogs: Shimano Ultegra R8100, 11-34, 12-speed
- Brakes: Shimano GRX 820 hydraulic disc, 160/160mm MT800 rotors
- Brake Levers: Shimano GRX 820 hydraulic disc
- Hubs: Front - Shimano TC500, 12x100mm centerlock / Rear - Shimano TC500, 12x142mm centerlock
- Rims: WTB KOM Team i25 TCS, 28h, tubeless ready
- Spokes: Stainless Steel, 14g
- Tyres: WTB Riddler TCS Light, 700x45c, tubeless ready
- Handlebar: Cannondale 2 ShortDrop, 7050 alloy, 12° flare drop
- Grips: Cannondale KnurlCork, 2.7mm
- Stem: Cannondale C1 Conceal, Alloy, 31.8, -6°
- Saddle: Fizik Terra Argo X7
- Seatpost: Cannondale 2 Carbon, 27.2x350mm (47-58), 400mm (61)
- Extras: Large StashBag downtube storage bag, tubeless valve stems
Highlights
- Topstone Carbon, Kingpin suspension system frame
- Shimano GRX Grouspet
- WTB KOM Team i25 Wheelset
- Fizik Terra Argo X7 Saddle
Specifications
- Model
- Topstone Carbon 2 GRX
- Bottom Bracket [Maker]
- Shimano
- Bottom Bracket Standard
- BSA
- Brakes [Kind]
- Hydraulic Disc
- Brakes [Maker]
- Shimano
- Brakes [Model]
- GRX 820
- Cassette [Gearing]
- 11-34
- Cassette [Maker]
- Shimano
- Cassette [Model]
- Ultegra R8100
- Chain [Maker]
- Shimano
- Chain [Model]
- XT
- Chainring [Gearing]
- 48–31
- Crank [Maker]
- Shimano
- Crank [Model]
- GRX 820
- Discipline Compatibility
- Gravel
- E-Bike
- No
- F Hub [Maker]
- Shimano
- F Hub [Model]
- TC500
- Family
- Topstone
- FD [Maker]
- Shimano
- FD [Model]
- GRX 820
- Fenders Mounts
- Yes
- Fork [Axle Type]
- 12x100mm
- 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]
- 2x
- Gearing [Kind]
- Conventional
- Gender
- Unisex
- Handlebar [Flare]
- 12 degree
- Handlebar [Kind]
- Drop
- Handlebar [Maker]
- Cannondale
- Handlebar [Material]
- Aluminium
- Handlebar [Shape]
- ShortDrop flared
- Headset [Maker]
- Acros
- Headset [SHIS]
- IS52/40
- R Hub [Maker]
- Shimano
- R Hub [Model]
- TC500
- Rack Mounts
- Yes
- RD [Maker]
- Shimano
- RD [Model]
- GRX 820
- Saddle [Maker]
- Fizik
- Saddle [Material]
- Carbon
- Seatpost [Diameter]
- 27.2
- Seatpost [Kind]
- Rigid
- Seatpost [Length]
- 350 mm
- Seatpost [Maker]
- Cannondale
- Seatpost [Material]
- Carbon
- Shifters [Maker]
- Shimano
- Shifters [Model]
- GRX 820
- Shifting
- Mechanical
- Stem [Angle]
- -6 degree
- Stem [Clamp Diameter]
- 31.8
- Stem [Maker]
- Cannondale
- Stem [Material]
- Aluminium
- Sub Family
- Topstone Carbon
- 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]
- KOM Team i25 TCS
- Product code
- 1901113 / 54294089662810
Size Guide
| Size (cm) with 700c Wheelset | 47 | 51 | 54 | 56 | 58 | 61 | |
|---|---|---|---|---|---|---|---|
| A | Seat Tube Length (cm) | 41 | 44.6 | 48.2 | 51.8 | 55.4 | 59 |
| B | Top Tube Horizontal (cm) | 53.2 | 54.3 | 55.4 | 56.4 | 57.6 | 59.3 |
| C | Top Tube Actual (cm) | 51 | 52 | 53.1 | 54.3 | 55.7 | 57.4 |
| D | Head Tube Angle | 69.9º | 70.7º | 70.7º | 70.7º | 70.7º | 70.7º |
| E | Seat Tube Angle | 73.1º | 73.1º | 73.1º | 73.1º | 73.1º | 73.1º |
| F | Standover (cm) | 71.6 | 74.1 | 77.2 | 80 | 83.1 | 86.4 |
| G | Head Tube Length (cm) | 9.7 | 10.1 | 12.3 | 14.2 | 16.4 | 19.6 |
| H | Wheelbase (cm) | 100.9 | 101.2 | 102.6 | 103.6 | 105 | 106.9 |
| I | Front Centre (cm) | 60.1 | 60.5 | 61.7 | 62.8 | 64.1 | 65.9 |
| J | Chain Stay Length (cm) | 42 | 42 | 42 | 42 | 42 | 42 |
| K | Bottom Bracket Drop (cm) | 7.9 | 7.9 | 7.6 | 7.6 | 7.4 | 7.4 |
| L | Bottom Bracket Height (cm) | 28 | 28 | 28.3 | 28.3 | 28.5 | 28.5 |
| M | Fork Rake (cm) | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
| N | Trail (cm) | 7.3 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 |
| O | Stack (cm) | 55.4 | 56.1 | 57.9 | 59.7 | 61.5 | 64.6 |
| P | Reach (cm) | 36.4 | 37.3 | 37.8 | 38.3 | 38.9 | 39.7 |
| Q | Axle to Crown | 42.9 | 42.9 | 42.9 | 42.9 | 42.9 | 42.9 |
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Q & A
1 question answered
What size tyres could this take with 650bs?
Hi there, This would be 47mm, Many thanks Joe W



