As with all our hubs, the XMRT (Cross Mountain Road Tandem) draws on over 30 years’ worth of hub manufacturing experience and real-world testing, going back to the “Ti Cassette Hub” we introduced in 1992. We’ve been doing this for a long time, and every White Industries hub we make has that original DNA in it; simple, durable, dependable.
The XMRT is a tandem-specific 6-bolt disc rear hub designed around the QR x 145mm axle spacing standard which is (mostly) unique to tandems. The hub shell is designed specifically around this axle standard and puts the disc rotor in the correct spot for the ISO 6 bolt rotor/caliper alignment standard. This is not simply a standard XMR hub with a wider axle! That would not work because the disc rotor would end up 10mm shy of lining up with the disc caliper.
The XMRT rotates on four Enduro brand bearings: two in the 6061-T6 aluminum hub shell, and two in the 6/4 titanium freehub body. XMRT’s are made here in our Petaluma, Ca. shop, and available in four spoke drillings, two colors, two axle configurations, and four different freehub bodies.
