







Topstone Carbon 1 Axs Cannondale 2025 Phoenix Yellow
C15305U2051
TOPSTONE CARBON 1 AXS
Ready for anything
Our version of the ultimate gravel bike. Go anywhere, carry whatever you want and keep moving forward.
Model description
Forget shortcuts—long roads are more fun with this bike. The Topstone Carbon 1 AXS is equipped with a 13-speed SRAM Rival AXS XPLR wireless drivetrain and KingPin suspension so you can keep your speed over roots, rocks, or whatever the terrain brings. The Reserve 40|44 carbon wheels not only roll fast, they also excel on rough ground. Adventure has never sounded so good.
What it’s for
Amateur and competitive gravel, bikepacking, going all out or travelling, on dirt or tarmac.
- Key points:
- Lightweight carbon frameset with Kingpin rear suspension, Proportional Response construction tailored for each size and StashPort storage in the downtube.
- Smooth, effortless shifts with the SRAM Rival XPLR AXS wireless electronic drivetrain.
- Reserve 40 | 44 GR carbon gravel wheels with DT-Swiss 370 hubs and WTB Vulpine 45c tyres. Light, strong and aerodynamic.
- Carbon components that enhance comfort, such as the Cannondale SAVE seatpost and Easton EA70 AX handlebars.
- Smiles per kilometre -
The Kingpin is our lightest and strongest rear suspension. Very simple and maintenance-free, it provides the Topstone frame with real rear-wheel travel without compromising reactivity, even during the most aggressive sprints. Kingpin provides comfort and traction, allowing you to pedal harder knowing you have absorption on the most technical sections. So discreet you barely notice it visually, yet delivering real results and benefits.
- Carry your stuff -
Our new StashPort storage system in the downtube is designed to go unnoticed while being fully functional. Together with the special StashBag, you can carry your essentials knowing they will be well protected, whatever you do. Meanwhile, the multiple mounting points on the frame let you attach more accessories and live new experiences.
- Ideal performance -
The response on the trails, adapted to you. Thanks to the concept known as Proportional Response, everything on the Topstone—from the carbon layup to the geometry—is individually tailored for each frame size. This ensures that the bike’s response, including the KingPin suspension, works in harmony with your weight and reach, delivering the best experience on the trails.
*KINGPIN*
Our innovative gravel rear suspension is light, simple and effective. A thru-axle pivot in the seat tube allows the rear triangle and seatpost to flex vertically, providing up to 30 mm of travel to smooth out bumps.
*STASHPORT + STASHBAG*
StashPort is our version of a downtube storage system, accessible from under the bottle cage. Each bike includes StashBag, a specially designed bag to carry your essentials.
*TIRE CLEARANCE*
Plenty of room for modern gravel tyres. The frame accommodates tyres up to 52 mm wide with a 1x configuration, or 50 mm for a 2x configuration, while the fork accepts tyres up to 56 mm wide. Size measured, of course.
*DROPPER POST COMPATIBLE*
The frame accepts a 27.2 mm seatpost with internal cable routing, which should not be a surprise on a bike with this capability.
*PROPORTIONAL RESPONSE*
Tuned for the rider, our size-specific construction creates the optimal stiffness and compliance for each frame size. This way every rider benefits from ideal ride feel and KingPin comfort.
*OUTFRONT STEERING GEOMETRY*
Stability and agility in one. A super-long fork offset combined with a slack head angle delivers light, agile steering response, and also unbeatable stability at speed and when the terrain gets rough.
*ALL NEAT AND TIDY*
The fully internal cable routing throughout the frame, together with the Conceal stem, allows the cables to run cleanly inside, giving exceptional aesthetics.
Pairs well with
Fast and secure delivery
Personalised advice
2-year warranty
Hassle-free returns

Topstone Carbon 1 Axs Cannondale 2025 Phoenix Yellow
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Product details
General
- Year
- 2025
- Gender
- Unisex
- Family
- Bicis
- Wheel size
- 700
Frame
- 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
Cockpit
- Handlebars
- Easton EA70 AX
- Stem
- Cannondale C1 Conceal, Alloy, 31.8, -6°
- Grips
- Cannondale KnurlCork, 2.7mm
Brakes
- Front brake
- SRAM Rival hydraulic disc, 160/160mm Paceline centerlock rotors
- Rear brake
- SRAM Rival hydraulic disc, 160/160mm Paceline centerlock rotors
- Brake levers
- SRAM Rival AXS hydraulic disc
Saddle
- Saddle
- Fizik Terra Argo X5, S-Alloy rails
- Seatpost
- Cannondale SAVE Carbon, 27.2x350mm (47-58), 400mm (61)
Drivetrain
- Shift levers
- SRAM Rival AXS
- Rear derailleur
- SRAM Rival AXS XPLR
- Cassette
- SRAM Rival XPLR, XG-1351, 10-46, 13-speed
- Chain
- SRAM Rival
- Crankset
- SRAM Rival DUB Wide, 40T
- Bottom bracket
- SRAM DUB BSA Road 68 Wide
- Pedals
- Not included
- Speeds
- 13
Wheels
- Front tire
- WTB Vulpine TCS Light, 700x45c, tubeless ready
- Rear tire
- WTB Vulpine TCS Light, 700x45c, tubeless ready
- Rims
- Reserve 40 I 44 GR Carbon, Turbulent Aero Tech, 24h, tubeless ready
- Front hub
- (F) DT Swiss 370, 12x100mm centerlock
- Rear hub
- (R) DT Swiss 370, 12x142mm centerlock
- Spokes
- Sapim CX-Ray Aero, straight-pull
Other Components
- SWAT
- Large StashBag downtube storage bag, Reserve Fillmore tubeless valve stems, SRAM AXS charger