Cannondale Topstone Carbon 1 Lefty AXS (2025) – Review & Ride Summary
Rating: ★★★★☆ (4.6/5)
MSRP: $6,500
Category: High-performance Gravel Bike
Overview
The 2025 Cannondale Topstone Carbon 1 Lefty AXS builds on the legacy of its already iconic gravel platform with subtle yet smart upgrades. While it doesn’t revolutionize the category, it refines it — offering a smooth, confident ride on rough terrain and maintaining class-leading comfort and handling.
That said, riders upgrading from the previous generation may struggle to justify the cost unless these refinements check every box for their needs.
Pros
- Exceptionally smooth and confident ride over technical gravel
- Lefty Oliver Gen 2 fork offers improved suspension and damping
- Upgraded 52mm tire clearance (47mm with Lefty)
- Downtube storage with included stash bag = practical, clean solution
- SRAM mullet drivetrain delivers consistent, wide-range gearing
- Excellent geometry for stability and agility on mixed terrain
- High-quality wheelset and standout WTB Raddler tires
Cons
- Minimal changes compared to the previous Topstone model
- No dropper post on this high-end build
- Price tag feels steep for existing Topstone owners
Key Specs
- Drivetrain: SRAM Rival AXS shifters + GX Eagle T-Type derailleur (mullet setup)
- Suspension: Lefty Oliver Gen 2 fork (40mm travel), Kingpin rear leaf-spring suspension (30mm)
- Wheels: Reserve 40/44 carbon rims, DT Swiss 350 rear hub, Cannondale Lefty Fifty front hub
- Tires: WTB Raddler 700x44c (tubeless)
- Weight: Approx. 10.21 kg
- Frame Sizes: 47cm–61cm
Ride Impressions
From technical climbs to fast gravel descents, the Topstone Carbon 1 Lefty AXS handles it all with balance and finesse. The combination of Kingpin rear suspension and the new Lefty fork creates a ride feel that’s simultaneously plush and precise.
The SRAM mullet drivetrain provides buttery-smooth shifting and an impressive gear range (42t front / 10–52t rear), making both steep climbs and fast flats feel well-supported.
Tire performance is another standout. The WTB Raddlers offer a fast center tread for road and hardpack, while side knobs provide bite in looser conditions — making this bike truly versatile.
Verdict
If you’re starting fresh or coming from an older gravel setup, the Topstone Carbon 1 Lefty AXS is one of the most capable gravel bikes you can get your hands on. But for current Topstone owners, the upgrades might not deliver enough value to justify a swap — especially with no dropper post at this price.
Best For
- Riders who prioritize technical-terrain capability and suspension comfort
- Gravel cyclists seeking a premium, all-day performance machine
- Fans of mullet drivetrains and SRAM AXS integration