Better Boost Adapter Kits

Designed for:

Converting compatible DT-Swiss 15x100mm hubs to 15x110mm Boost standard

The new Better Boost Adapter Kits allow you to keep your existing 15x100mm front wheel as you upgrade to a new Boost 15x110mm fork.

What makes them better?

There are other conversion kits on the market, but ours is the best.  One competing kit consists of two loose 5mm axle spacers that are a pain to install and are easily lost during wheel removal. Another provides you with just one endcap and requires that you re-dish your wheel to re-center it in your fork. The Better Boost Adapter Kit consists of two precisely machined end caps and a rotor spacer (and requistite bolts), and it requires NO DISHING.

What hubs are compatible?

There are currently two Better Boost Adapter Kits available:

Better Boost Adapter Kit for DT-Swiss 350-based 15x100mm 6-bolt front hubs

  • Compatible Hubs: 350 Classic MTB db IS (15x100mm), 370 (15x100mm)
  • Compatible Wheels: X 1700 SPLINE TWO (27.5, 29), X 1900 SPLINE (27.5, 29), M 1700 SPLINE TWO (27.5, 29), M 1900 SPLINE (27.5, 29), E 1700 SPLINE TWO (27.5, 29), & E 1900 SPLINE (27.5, 29)

Better Boost Adapter Kit for DT-Swiss 240-based 15x100 6-bolt front hubs (not compatible with 240 hubs with threaded end caps)

  • Compatible Hubs: N/A
  • Compatible Wheels: XRC 1200 SPLINE (27.5, 29), XR 1501 SPLINE ONE (27.5, 29), XMC 1200 SPLINE (27.5, 29), XM 1501 SPLINE ONE (27.5, 29). & EX 1501 SPLINE ONE (27.5, 29)

Other compatibility info:

Better Boost adapter kits are not compatible with QR or 20mm hub shells, nor are they compatible with those featuring a Shimano Centerlock brake mount. Kits are not suitable for use with Rock Shox RS-1. 185mm max rotor size.


Converts 15x100mm hubs to 15x110mm Boost spacing.



Two endcaps, rotor spacer, and XL T25 rotor bolts

US MSRP $44.95 - 49.95


180 Classic MTB db CL white hub, 240s straightpull MTB db CL, 240s straightpull MTB db IS, 240s straightpull MTB db IS oversize, 240s Classic MTB db CL fifteen, 240s Classic MTB db IS, 240s Classic MTB db IS oversize, 350 straightpull MTB db CL, 350 straightpull MTB db IS, & 350 Classic MTB db CL


Any and all trademarks herein are property of their respective owners. Any and all trademarks found within this website are used for compatibility information purposes only. Such use of trademarks do not constitute or imply an endorsement by the trademark holder, all compatibility and fit determinations have been made solely by MRP. Use of this or any other aftermarket product may void any warranty you have with the original part manufacturer.