The Serpentine Trail is a bombproof mountain bike wheelset. We improve the stiffness, strength and longevity of a wheel by using an asymmetric (ASYM) rim design than improves spoke tension balance by up to 30%. On the trail, this translates to precise handling you can rely on. Add a 32mm internal width for ideal support of fat rubber.
Made just over the mountains from us in Bend, Oregon, Project 321 hubs offer absurdly fast, 216-point engagement and light-yet-strong alloy free-hubs. We use their “loud” pawl system for rock-solid reliability.
All Astral wheels feature a Tubeless Easy rim profile for painless tire installation and are hand-built by people that care.
Need a special build? We can do that. Contact us for dream-builds or rebuilds and we’ll make it happen. Services also available through dealers
29" Alloy - ASYM, tubeless ready
Weight: Project 321 17g
Spoke count: 28/28
Spoke type: Sapim Race, round
Rim Depth: 20mm Clincher
Rim Width: [ex] 36.3mm, [in] 32mm
Hubset: Project 321 6 bolt or Astral Approach by White Industries - center lock
Freehub: CNC Machined - Shimano 10/11/12 spd or SRAM XD
Tire size recommendation: See chart in product images
Freehub Material: CNC Machined Alloy, 216T high engagement, loud
Hub Body: 6-Bolt, CNC machined in Bend Oregon
*We do our best to ship your wheel order ASAP, but because many wheel orders are built to order, please allow up to one week for shipment once your order is processed. Custom orders like color decals may take up to one week.