FIRST XC - BOOST

moyeux de roue RAR First boost VTT XC

199 € – 290 €

FIRST XC BOOST: Lightweight for XC and Down-Country

This is the lighter version of our AM hub, crafted for cross-country (XC) and down-country (DC). Designed for 28 straight-pull spokes, it shares internal components with the AM version for perfect modularity.

 

Key features :
  • Refined Lightness: Just 336g per pair, with a sporty design that elevates your bike.
  • Unmatched Reliability: Steel ratchets (36 or 54 teeth) and 61902/15267 bearings for maximum endurance.
  • Optimal Stiffness: Widely spaced flanges for perfect energy transfer.
  • Simplified Maintenance: Quick disassembly, with spare parts available online.

 

Weight per pair: Starting at 336g

Max supported weight (rider + bike): 120kg

SPARE PARTS AVAILABLE ONLINE

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  • Geometry and weight

     

    FIRST XC disc brake BOOST 15/110 front 28t 

    * 106g – TPI steel bearings

    Lefty 50

    * 146g – TPI steel bearings

    FIRST XC disc brake BOOST 12/148 rear 28t 

    Shimano HG

    * 253g – TPI steel bearings

    Sram XD

    * 230g – TPI steel bearings

    Microspline

    * 237g – TPI steel bearings