Description
EMTB-Rated Wheels
The HX531 rims from DT Swiss are designed specifically for the demands on modern EMTB riding. The Onyx Classic MFU hubs complement the rims in spectacular way, offering ride-characterics, and robustness not seen anywhere else.
Hubs
The wheels are built around Onyx Racing Classic hubs are the tried and true choice that keeps on humming smoothly even after years of heavy use. Large high-quality bearings in combination with the patented sprag clutch mechanism provide class-leading ride characteristics, and trustworthy reliability.
Classic MFU hubs are rated for EMTB’s with mid-motors of up to 1.5kW peak power output.
The silent operation and instant engagement are standard features in all Onyx Racing Products hubs.
Hub specs are as follows:
- Classic model, anodized black color.
- Solid front hub shell (as opposed to the Helix model with cut-away shell).
- Boost sizing – 110x15mm / 148x12mm.
- Torque Cap compatible front axles or Boost 20mm axles are also available. Ask for more details by email.
- ISO 6-bolt disc rotor mounts.
- 32H shells.
- Freewheel driver options: Shimano HG (aluminium or chromoly), XDR (aluminium or chromoly), or Micro Spline. If you want to learn more about drivers and material choices, please refer to the article linked below.
Rims
Wheels are built around DT Swiss HX531 rims in mixed (or mullet) size, meaning 29″ front rim diameter, and 27.5″ rear rim diameter.
Note! The 29″ front rim has been built once for demo purposes! The condition of the rim is excellent: straight, round and true. There are some visual imperfections, however. Please see an example here.
All other components used in the build are brand new.
Rim specifications are as follows:
- 29 and 27.5″ diameters, 30 mm inner width.
- 32H spoke hole count.
- Symmetrical rim profile.
- Designed for EMTB use.
Spokes and Nipples
Wheels are built with Sapim Race spokes with 2.0/1.8/2.0mm profile. The Race spokes are the default spoke model for several reasons.
- Excellent value.
- High strength-to-weight ratio.
- Better fatigue-resistance properties than straight gauge 2.0mm spokes.
- Easy to source in case spares are needed.
Race spokes are paired with black-coloured Sapim Polyax brass nipples (standard or Double Square version). Brass nipples are used almost exclusively in all of our builds because of their longevity, low to zero maintenance needs, corrosion resistance and strength. Secure-Lock nipples or traditional ones with a mild adhesive compound to prevent unwanted loosening, improve wheel reliability, and lessen service needs.
Build
By default, wheels are built with 3-cross lacing unless otherwise agreed upon. All the wheels are built by hand, carefully tensioned and stress-relieved thoroughly in order to create wheels that provide maximum strength and minimal service needs.
Lead Time
All wheels ship within 3-4 working days from the time of the order.
