DT Swiss U663 DT 350 Hybrid hand-built wheelset

A DT Swiss U663 rim set laced 32-spoke to DT 350 Hybrid hubs, built by hand in our Marrickville workshop, tensioned, stress-relieved and trued before it leaves the bench. Our Pro wheel build and tubeless tape fitted are included and show as two free lines in your cart.

Before you order — what your bike decides

• Rear axle — Boost 12 × 148 only on this wheelset: measure the inside of the dropouts.
• Front axle — Boost 15 × 110, 15 × 100, Boost 20 × 110 or 20 × 110. Boost 15 × 110 on most modern forks, 20 × 110 on DH forks, 15 × 100 on older forks: check the fork lowers.
• Rotor mount — 6-bolt or Centre Lock: look at your rotors (six bolts, or a splined centre with a lockring).
• Cassette — the freehub body follows it: Shimano 12-speed MTB is Micro Spline, SRAM Eagle is XD, Shimano 11-speed and older (and CUES LG) is HG. Offered here: Shimano HG, Shimano Micro Spline or SRAM XD.

Choose the same rotor mount front and rear unless your rotors differ.

Who it is for

For cargo, longtail and e-city bikes — the DT Swiss U663 is a 30 mm-inner rim (DT rates it to 180 kg system weight for e-urban and cargo bikes).

The rider's questions

• How much can it carry? Max system weight (rider, bike and gear) 180 kg — the DT Swiss U663 rating, the lowest-rated part of the build.
• What tyres fit? 2.1–2.7" tyres are DT's recommended range for a 30 mm inner width; 1.85"–2.05" and 2.8" are possible. The tyre's own maximum pressure applies; the rim sets none.
• E-bike? Yes — the DT 350 Hybrid is DT's e-bike-duty hub: DT recommends the Hybrid above 55 Nm of motor torque and requires it above 100 Nm.
• How fast does the hub engage? 24 points of engagement — Ratchet System 24, 15° between clicks.
• Warranty? DT Swiss parts 24 months from purchase; our build work is guaranteed. Any claim comes back to Tune Cycles — see the Warranty tab.
• How long does it take? Built to order from supplier stock — we confirm the build date by email when you order.

Kit includes

• DT Swiss U663 32H front rim, 20" (30 mm internal)
• DT 350 front hub, 32H: 6-bolt or Centre Lock · Boost 15 × 110, 15 × 100, Boost 20 × 110 or 20 × 110
• 64 × DT Swiss Alpine III 2.34/1.85/2.0 triple-butted black spokes (front and rear)
• DT Swiss U663 32H rear rim, 26" (30 mm internal)
• DT 350 Hybrid rear hub, 32H: Centre Lock · Boost 12 × 148 · freehub Shimano HG, Shimano Micro Spline or SRAM XD

Options: rotor mount 6-bolt or Centre Lock · front axle Boost 15 × 110 (15 × 100, Boost 20 × 110, 20 × 110) · freehub Shimano HG, Shimano Micro Spline or SRAM XD · tubeless valves (50 mm, up to 2).

Everything in the Wheelset box is built in. The rows under Upgrades are optional: tick what you want and the price updates. If you want us to lace a rim or hub you already own, that is a workshop job — contact us for a quote.

Sold separately (shown with this kit): tubeless sealant (Muc-Off No Puncture 140 ml), RT-CL700 203 mm Centre Lock rotor, the Shimano SM-RTAD05 adapter (runs a 6-bolt rotor on a Centre Lock hub; not with SM-RT86 / RT76 aluminium-carrier rotors), a cassette for your freehub body, tyres to suit (sizes above). Rotors: one per wheel, to match your rotor mount and your brake caliper's size range.

How we build it

Every wheel is laced by hand in Marrickville, brought up to tension evenly within DT's limits for the rim and each hub, stress-relieved and trued, then checked again before it is packed. Tubeless tape (32 mm) is fitted to the rim; add valves and sealant and it is ready for tyres.

Tune Cycles builds and fits these wheels. If you are unsure what your frame, fork or drivetrain takes, ask us before you order.