R
RidleyKanzo Fast
gravel
01
Origin
The Kanzo Fast launched in 2019 as Ridley's answer to aero gravel racing — merging the brand's road-bike aerodynamic obsession with gravel geometry. The headline innovation was the "1×2×11" drivetrain: a single front chainring paired with Classified's wireless internal 2-speed hub, delivering the range of a double without a front derailleur cluttering the cockpit.
02
Specifications
- Frame
- 30T HM Carbon, NACA-profiled tubing, stiff BB area; D-shaped seatpost; TA 12x142mm; frame ~1190g (size M with lacquer)
- Weight
- kg
- Drivetrain
- Shimano GRX RX800 Di2 11-speed 1x + Classified Powershift internal 2-speed rear hub (total 22 gear equivalents); or SRAM Rival 1x; Rotor Aldhu Aero 48T crankset on Di2/Classified build
- Brakes
- Shimano GRX BR-RX810 hydraulic disc
- Wheels
- 700c; Forza Vardar DB carbon 38mm, 17mm internal rim width on GRX Di2/Classified build
03
The verdict
+Strengths
- Classified hub delivers 22-gear range with a clean single-chainring front end — no front derailleur fumbling
- Aero profiling gives real speed advantage on fast gravel races and mixed-surface sportives
- Predictable handling from fixed 42.5cm chainstay and considered geometry across sizes
−Weaknesses
- Classified hub system adds cost and a proprietary wheel that can be hard to replace or service remotely
- Integrated cockpit limits handlebar customisation for riders with non-standard fit requirements
- At ~8.9kg, heavier than pure climber-oriented gravel bikes
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Tags
05
Related models
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