The DT Swiss 240 is the benchmark for performance hubs, trusted by mountain bike riders for its renowned reliability and easy serviceability. This Boost rear MTB hub runs the proven Ratchet EXP system with a SRAM XD driver for fast, dependable engagement on the trail.

Highlights

  • DT Swiss benchmark performance hub for mountain biking
  • Ratchet EXP engagement, 36t default (10 degrees), tool-free upgrade to 54t (6.7 degrees)
  • 6-bolt (ISO) disc, 12/148 Boost axle
  • SRAM XD driver, 28 hole straightpull
  • E-bike approved (max. 32 km/h or max. 250 W)

Ratchet EXP

The Ratchet EXP system engages across the full face of two opposing toothed rings for even load sharing and proven durability. It ships with a 36t ratchet (10 degrees) and can be upgraded tool-free to 54t (6.7 degrees) for faster pick-up. The design strips down quickly for cleaning and servicing with minimal tooling.

Compatibility & fit

Rear mountain bike hub for a 12/148 Boost thru-axle, with a 6-bolt (ISO) disc rotor mount and 28 hole straightpull drilling. The SRAM XD driver accepts SRAM XD cassettes. Confirm your frame axle standard, rotor fitment, cassette type and straightpull spoke compatibility before purchase.

DT Swiss covers this hub with a 24-month warranty against material and manufacturing defects from the date of purchase. Normal wear items, including bearings and freehub bodies, are not covered. The DT Swiss crash-replacement (Fair Share) programme applies to carbon rims only and does not apply to this product.

For any warranty support, please return the item to Tune Cycles and our team will handle the claim on your behalf.

  • DT Swiss 240 rear MTB hub
  • 6-bolt (ISO) disc brake interface
  • 12/148 Boost rear axle
  • 28 hole drilling, straightpull spokes
  • SRAM XD driver
  • Ratchet EXP, 36t default, tool-free upgrade to 54t
  • Steel cartridge bearings
  • E-bike approved (max. 32 km/h or max. 250 W)
BrandDT Swiss
Model240
PositionRear
DisciplineMTB
Brake interfaceDisc 6-bolt (ISO)
Axle12/148 Boost
Hole count28H
Spoke typeStraightpull
Freehub bodySRAM XD
EngagementRatchet EXP 36t (upgradeable to 54t)
BearingsSteel cartridge bearings
E-bike approvedYes (max. 32 km/h or max. 250 W)
SKU APO-DTH2237
Brand DT Swiss