The Fulcrum KITFCRAQR kit is the official solution for converting your HH12 12 mm thru-axle wheels to Quick Release (QR) 9x135 mm configuration. Designed for demanding cyclists who want to adapt their modern wheels to frames or forks equipped with traditional QR dropouts, this kit guarantees maximum compatibility while maintaining the technical integrity of the hub.

Technical Overview

This conversion kit consists of two precision-machined aluminum alloy end caps, specifically developed for Fulcrum and Campagnolo rear hubs with the HH12 standard (12 mm axle). It allows conversion from a modern thru-axle system to a traditional 9x135 mm quick release system, without permanent modification to the hub. This adaptability is essential for cyclists with multiple frames or wishing to use their high-performance wheels on different bikes.

Technical Highlights

• Original Fulcrum part: Guaranteed perfect compatibility and manufacturer quality with Fulcrum and Campagnolo wheels equipped with HH12 disc brake hubs
• Reversible conversion: Quick transformation without complex tools, allowing return to original configuration at any time
• Premium materials: CNC-machined aluminum alloy for reduced weight (approximately 70 g) and maximum durability
• Road/MTB versatility: Compatible with road and MTB wheels equipped with disc brakes (6-bolt or Center Lock mounting)
• Modular system: Can be combined with other Fulcrum adapters (e.g., RM16-TA12135) for complex hub spacing conversions (12x142 to 9x135)

Extended Compatibility

The KITFCRAQR kit is compatible with a wide range of Fulcrum and Campagnolo wheels equipped with HH12 disc hubs, including:

• Red range: Red Power HP (MY 2015 and later), Red Passion, Red Power (HH12 hub versions)
• Racing range: Racing Quattro Carbon DB, Racing 5 DB (2016+), Racing 6 DB, Racing 4 DB
• Rapid Red range: Rapid Red 500 DB, Rapid Red 900 DB (with compatible hub)
• Other models: Wind 40/55 DB, Wind 75 DB (depending on hub version)

Note: Compatibility depends on the specific hub product code. Fulcrum recommends verifying the reference code in the official spare parts catalog, as several hub generations exist with different standards.

Installation and Use

Installation of the KITFCRAQR kit is simple and requires only basic tools. Simply remove the original thru-axle end caps and replace them with the supplied conversion end caps. For a complete conversion from 12x142 mm to 9x135 mm, this kit must be used in conjunction with the RM16-TA12135 adapter (sold separately) which adjusts the hub spacing. This combination is particularly appreciated by users of Fulcrum Racing 6 DB wheels wishing to mount them on frames with the QR 135 mm standard.

Benefits for Cyclists

• Economy: Allows reuse of modern high-end wheels on older or secondary frames, without investing in a new wheelset
• Flexibility: Ideal for cyclists with multiple bikes (gravel, road, cyclocross) with different axle standards
• Reliability: Official Fulcrum part guaranteeing precise fit, without play or risk of wheel misalignment
• Controlled weight: At only approximately 70 g, the impact on total wheel weight remains negligible