The DT Swiss XR 391 is a wider aluminium cross country rim that gives modern XC and down-country tyres a broader, more stable footprint without a big weight penalty. It is a dependable choice for racing and everyday trail riding.

Highlights

  • 25 mm internal width supports wider XC and trail tyres with a fuller profile
  • Tubeless ready (TC) hooked bead for secure, low-pressure running
  • Welded joint and non-eyelet PHR interface keep the build light and strong
  • Disc specific, with a Presta valve hole
  • E-bike approved for light electric MTB use

Construction

The rim is welded for a smooth, even bead seat and uses the DT Swiss PHR (non-eyelet) spoke interface, which spreads spoke loads over a large area so wall thickness can stay thin while strength stays high.

Compatibility & fit

This is a 27.5" (584) rim drilled for 28 spokes, suitable for disc-brake cross country and trail wheel builds. It is hooked and tubeless ready (TC) and takes a Presta valve. Pair with compatible DT Swiss spokes, nipples and PHR washers for the intended build.

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

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

  • Discipline: cross country
  • Aluminium rim
  • 27.5" (584) diameter
  • 25 mm internal width, 29 mm outer width
  • 18 mm rim depth
  • 28 spoke holes
  • Welded rim joint
  • Non-eyelet PHR spoke interface
  • Tubeless ready (TC), hooked bead
  • Presta valve hole
  • Disc specific
  • ASTM category 3
  • Recommended max system weight 110 kg
  • E-bike approved (to 25 km/h class)
BrandDT Swiss
ModelXR 391
DisciplineCross country
Diameter27.5" (584)
Internal width25 mm
Outer width29 mm
Rim depth18 mm
Hole count28
Brake typeDisc specific
TubelessTubeless ready (TC), hooked
ValvePresta
Rim jointWelded
ASTM category3
Max system weight110 kg
E-bikeApproved (25 km/h class)
Weight415 g (27.5")
SKU APO-DTR0040
Barcode # 7613052009162
Brand DT Swiss

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