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XMRT Rear Tandem


SKU: xmrttndm
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Our XMR T (Cross/Mountain/Road – Tandem) hub is a tandem-specific version of our XMR 6 bolt disc hub.  Spaced at the 145mm quick release standard many tandems use, we designed a custom hub shell with tandem-specific flange spacing and a beefed up cro-moly steel axle to handle the extra load.  Made in our shop from U.S. sourced 6061-T6 aluminum, they’re available in a range of drillings and 4 different freehub body options.


  • U.S. made 6061-T6 aluminum
  • Enduro bearings
  • 6/4 titanium driver
  • 3-pawl, 48 point (7.5 degree) engagement
  • Compatible with 6-bolt style rotors
  • Cassette spacer included only on XDR freehub bodies
    • Available separately for Shimano HG11 (part# SPACER11)


  • 344g
  • Drillings: 32, 36, 40, 48
  • Axle:
    • 10mm x 145mm QR


  • All Enduro ABEC 5 except 3802W (ABEC 3)

Driver Style

Left hub shell bearing Right hub shell bearing Inner driver bearing

Outer driver bearing

Shimano Hyperglide 11 speed

61902-SRS 61902-SRS 3802W LLB


Shimano Micro Spline

61902-SRS 61902-SRS 3802W LLB

3802W LLB


61902-SRS 61902-SRS 3802W LLB

3802W LLB

Campy 11 speed

61902-SRS 61902-SRS 3802W LLB

3802W LLB

Wheelbuilding specs

  • Spoke hole diameter
    • 2.6mm

Left flange diameter

Right flange diameter Center to left flange

Center to right flange


60mm 30.65mm


Technical Documents


Additional information

Weight N/A
Dimensions N/A


Spoke Count

, , ,

Axle Type

Cassette Compatibility

, , ,

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