6-bolt J-bend rear hubs – Boost 148mm spacing


Smooth rolling rear hub with 54 engagement points and a weight of 283g.


JRA Boost 148mm hub with 6-bolt disk mount and to fit J-bend spokes. Small laser-etched logo on all hubs as shown on red.

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6-bolt J-bend rear hubs – Boost 148mm spacing

  • 24 hole
  • 28 hole
  • 32 hole

axle and end caps for rear 6-bolt Boost 148mm hubs - screw-on

Axle and end cap kits for Boost 6-bolt rear hubs.

Available in 12x148mm and QRx141mm versions. QR 141 or "Boost 141" is used on some Trek and Scott bikes. Most other bikes with Boost width dropouts will use the 12x148mm option.

  • Boost 141mm QR
  • Boost 12x148mm
  • aluminium
  • steel

M-type freehub with TPI stainless steel bearing - dr

Freehubs for JRA hubs. Can be interchanged to convert your hub to run a different cassette.

  • Shimano 8-12sp
  • Shimano Microspline
  • Sram XD
  • Sram XD-R
  • Campagnolo
  • Campag 13 speed N3W