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Thanks to the integration of proven technical characteristics in Formula 1 and specific innovations for karting circuits, the new shoe Alpinestars Tech-1 kz has benefited from a major evolution to continue offering exceptional performance in karting. The new asymmetrical lacing and the exclusive metal filament closure system of Alpinestars Guarantee light and precise support and an anatomical profile of the forefoot, while new external heel reinforcements and round ankles provide high levels of protection and performance. The minimum seams, a new ultrafine non-slip sole complies with F1 specifications and new laser perforation strategic areas make the TECH-1 KZ shoe one of the most advanced karting domain.
• Thermo-welded tip-free structures consisting of an ultra-thin film and 3D mesh for extremely reduced weight and maximum sensitivity through a "sock" effect, without pressure points for comfort and excellent fit.
• New elegant profile marrying the foot anatomy and ensuring good fit and superior performance.
• Laser perforations for ventilation on the top, with 3D mesh on the tab for excellent breathability and comfort.
• Outdoor heel, ankle and foot-tip interiors for protection and abrasion resistance.
• Lace-up closure systemAlpinestars Built from an advanced polymer resin for a quick, precise and safe closure.
• Dual asymmetric closing system integrating a Velcro® ultrafine and adjustable clamping strap and a quick lacing in aramid. Integrates the exclusive wire closure system of Alpinestars, which strategically envelops the foot for optimal support and structure, while providing durability, accurate fit and secure closure.
• Nitrile rubber collar padding for comfort and reduced weight.
• Flexible microfiber neck cut lower at the back to improve the comfort at the Achilles heel and increase movement amplitude
• Tab with a perforated soft padding for improved comfort and adjustment.
• Buttress Alpinestars Innovative for maximum performance: Ergonomic heel butt underproofing supplies support and stability inside the shoe, and flattened forefoot with stamping rib offering a greater sensation on the pedals.
• Ultrafine sole according to the F1 specifications consisting of an exclusive rubber compound Alpinestars For more sensitivity and adhesion at the pedal level, in wet and dry conditions.
Homologation: CIK
| Euro | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 |
| UK | 3.5 | 4 | 5 | 5.5 | 6.5 | 7 | 8 | 9 | 9.5 | 10.5 | 11 | 12 |
| US | 4.5 | 5 | 6 | 6.5 | 7.5 | 8 | 9 | 10 | 10.5 | 11.5 | 12 | 13 |
The CRG Kt2 is the versatile chassis par excellence of the Italian manufacturer. Unlike the Rébec Road (more rigid), the KT2 uses a frame compound full of tubes of 30 mm in diameter. This architecture offers controlled flexibility, ideal for freeing the engine in categories without gearbox like the OK, Iame X30 or the Rotax Max.
Its geometry allows fast adaptation to all track conditions (high grip or green track "). Featuring the last components of the range CRG RacingHe combines exceptional motor skills at a surgical front train accuracy.
The CRG KT2 2026 Version Kz redefines the standards of the Queen category. While the Road Rebel (32mm) remains the choice for the tracks with very high grip, the KT2 in 30mm Has become the favorite weapon of Kz pilots looking for more agility and ease in the support changes.
For 2026, CRG Reworked the composition of chrome-molybdenum steel to provide a better response from the front train during degressive braking. This KZ version stands out for its localized structural reinforcements and its integral front / rear braking system, essential to stop the power of 50 horsepower engines
The hub of 35 mm long is considered a "short hub". In karting, The choice of hub length is a fundamental adjustment tool:
Short hub (35 mm): It offers less contact surface with the axle than models of 75 or 90 mm. This usually allows to have a "freer" behavior of the rear train, Helping the chassis to be free from curve, Ideal on tracks with a lot of grip (adhesion).
The hub of 40 mm long is often considered the "standard" or "versatile" value on adult karts equipped with a 30 mm (x30, axle, Rotax, Kz, ok). Unlike very long (75-90mm) hubs that considerably rigidify the rear, or the very short (35mm) that fully freed the chassis, the 40 mm Offers neutral and healthy behavior, ideal for starting a setting session before refining.
The hub of 85 mm is a "long" adjustment room. In karting, the choice of the hub length is directly related to the leverage exercised on the axle:
Stability and Grip: With 85 mm, you increase the rigidity of the rear train and removing the load outward. This is the ideal tool for more moving output output or to expand your back path without stacking spacers (which weakens the assembly).
R2.0 version: This name indicates an evolution of design at CRG (best machining, optimized weight and anodized finish "Gold" for higher resistance to corrosion).
Attention all sizes are no longer available
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Thanks to the integration of proven technical characteristics in Formula 1 and specific innovations for karting circuits, the new shoe Alpinestars Tech-1 kz
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