The Ridley Kanzo Adventure Alu embodies absolute versatility for modern gravel. The aluminum variant of the renowned Kanzo Adventure carbon awarded "Best Adventure Gravel Bike 2024", this model brings a robust triple-butted hydroformed 6061-T6 alloy architecture, a progressive MTB-inspired geometry and exceptional carrying capacity thanks to its 18 mounting points. Equipped with Shimano GRX400 2x10 speed groupset and DT Swiss G1800 Tubeless Ready wheels, this "bombproof" gravel bike is built for long-distance exploration, loaded bikepacking and demanding terrain.

Technical Summary

The Kanzo Adventure Alu is based on a 6061-T6 aluminum frame from the Hydro series, forged using a high-pressure hydroforming process that shapes each tube without compromising its structure. The tubes are triple-butted — their wall thickness at the center is three times less than at the ends — which minimizes weight without compromising rigidity. The frame integrates internal routing for dynamo hub and rear light, a threaded BSA bottom bracket, and the Universal Derailleur Hanger (UDH) that protects against impacts and chain drops. The Forza Gravel Disc carbon fork also features dynamo routing and accepts tires up to 54 mm. Together, frame and fork offer 52 mm clearance in single-chainring configuration (47 mm in double-chainring), allowing voluminous MTB-type tires to tackle rock gardens, single-tracks and muddy trails.

Technical Highlights

• Kanzo Optimized Geometry (KOG): relaxed 70.75° head angle, bottom bracket lowered by 75 mm and seat tube angle steepened to 74–74.5° depending on size. This mountain-bike architecture provides stability and confidence in technical descents, while placing the rider in a compact and powerful position for loaded climbs.
• Long wheelbase and short chainstays (435 mm): ideal compromise between directional stability (wheelbase 1003–1106 mm depending on size) and agility in direction changes.
• 18 mounting points (12 frame + 6 fork): multiple bottle cages, frame bags, low-rider front racks (max load 9 kg total on fork), toolbox under downtube, full fenders. Each fork leg can support 3 kg in cargo cages.
• Internal dynamo routing: dynamo hub and rear light cables discreetly routed through the top tube, for permanent lighting without external battery.

Shimano GRX400 2x10v Drivetrain

• Shimano GRX 600 46-30T crankset: chainline offset by +2.5 mm compared to standard road cranksets, allowing increased clearance for tires up to 47 mm in 2x.
• Shimano HG50 11-36T cassette: total range of 20 speeds (2×10), with a minimum gear ratio of 0.83 (30×36) for steep climbs when loaded, and a maximum of 4.18 (46×11) for rolling sections.
• RX400 Shadow RD+ rear derailleur: protected low profile, ON/OFF clutch mechanism that stabilizes the drivetrain on rough terrain and reduces chain drop.
• ST-RX400 / BR-RX400 hydraulic levers/brakes: raised anti-slip hoods, textured coating on brake levers, consistent hydraulic power and modulation. Each lever weighs ~306 g, calipers ~143 g.

Wheels, Tires and Braking

• DT Swiss G1800 Classic Tubeless Ready wheels: DT Swiss 370 hubs, 25 mm deep aluminum rims, 24 mm internal width, thru-axles TA 12x100 mm (front) and TA 12x142 mm (rear). Tubeless ready to run at reduced pressure and gain comfort/grip.
• Vittoria Terreno Dry 700x45c tires: fast low-resistance compound for dry trails, with rigid or tubeless sidewalls depending on spec.
• Flat Mount hydraulic disc brakes: integrated flat mount, 160 mm or 180 mm rotors depending on configuration, ICE technology (improved heat dissipation) for long loaded descents.

Cockpit and Contact Points

• 4ZA Stratos Gravel handlebar: width 400/460 mm on small sizes (XXS–S), 420/480 mm on M–XL, with pronounced flare for maximum control on technical descents.
• Forza Stratos Pro stem: length 80 mm on XXS–S, 90–100 mm on M–XL, semi-integrated cable routing for clean aesthetics.
• Forza Stratos 27.2 mm seatpost: zero offset, 350 mm length, black anodized gloss finish.
• Selle Italia Model X saddle: S-Alloy rails, lightweight composite shell.

Geometry and Sizes

Six sizes from XXS to XL cover a range of riders from ~155 cm to 195+ cm. Stack/Reach values range from 522/365 mm (XXS) to 630/429 mm (XL), with a Stack/Reach ratio between 1.41 and 1.47 depending on size — a slightly upright position characteristic of adventure gravel, for long-distance comfort and control in rough terrain. The constant 70.75° head angle across all sizes guarantees homogeneous directional behavior; the seat angle varies from 74.5° (XXS/XS) to 73.5° (XL) to adapt weight distribution. Wheelbase 1003 mm (XXS) to 1106 mm (XL), chainstays 435 mm across the entire range, bottom bracket 75 mm below wheel axle for a lowered center of gravity.

Standards and Compatibility

• Bottom bracket: threaded BSA 68/70 mm (English threaded), compatible with all Hollowtech II 24 mm axle cranksets.
• Derailleur hanger: UDH (Universal Derailleur Hanger), SRAM standardized norm adopted by the industry, protects against breakage and facilitates replacement.
• Wheel compatibility: 700c only (geometry not optimized for 650b).
• Brake compatibility: Flat Mount discs, diameters 140–180 mm with adapters if necessary.

Construction and Finish

The frame undergoes double-pass flat welding at critical junctions, ensuring mechanical strength and refined finish. The tubes are welded with precision craftsmanship, then sanded, primed and painted. Three colorways available depending on year: KAV01Am (Black/Silver matte), KAV01Bs (Bronze Green/Black gloss), KAV01Cs (Jazzberry Jam Metallic/Black gloss). Each frame is tested according to mountain-bike standards (not road), guaranteeing its ability to withstand impacts, overloads and extreme torsion.

Use and Performance

With a complete weight of 11.1 kg (size M) measured by TOUR magazine, the Kanzo Adventure Alu does not shine for its absolute lightness, but this additional mass reflects its "bombproof" robustness and complete preparation (tubeless ready wheels, DT Swiss 370 hubs, frame