Reserve 34|37 DT Swiss 240 Wheelset

Reserve 34|37 DT Swiss 240 Wheelset is Reserve's do-everything road wheelset, built to handle climbing, long road days, and the occasional stretch of rough pavement without asking the rider to specialize. Reserve is Santa Cruz Bicycles' wheel brand, and the 34|37 applies that same engineering group's approach to a rider who wants one dependable set of road wheels rather than a quiver of race-day-specific options. Reserve builds the rims from carbon and pairs them with a DT Swiss 240 hubset, a combination aimed at all-around road riding rather than pure aero or ultralight climbing.

The 34|37 name refers to its mixed rim profile: a 34mm-deep front rim paired with a 37mm-deep rear. Reserve runs the front wheel shallower and wider — 23mm internal, 30mm external — for stability in crosswinds and on descents, while the rear goes deeper and slightly narrower at 22mm internal, 29mm external, favoring aerodynamics and power transfer in the zone where a rider's own body already blocks most of the wind. Recommended tire width runs 25mm to 38mm, wide enough to run road-race-width tires or step up to something with more volume for rough roads or light gravel without leaving the wheel's intended range. Reserve reinforces the spoke holes internally rather than adding external material, which adds strength where the rim sees the most load from each spoke without piling on extra weight.

DT Swiss builds the hubs, and the 240 sits in the middle of DT Swiss's lineup — light enough to matter on a climbing wheelset, but built to hold up to regular service rather than requiring a full rebuild after a season of miles. Each wheel uses 24 spokes, a count Reserve keeps consistent front and rear rather than chasing the lowest possible number. Hub spacing covers 12x100mm front and 12x142mm rear thru-axles, rotors mount via Centerlock, and the freehub comes in XDR or HG-EV to match SRAM or Shimano drivetrains. Total wheelset weight with the DT 240 hubs comes in at 1,354 grams — heavier than Reserve's top-tier DT 180 build, but with a hub that's easier and cheaper to service over the life of the wheelset.

On the road, that mixed-profile approach is what lets Reserve call the 34|37 a no-fuss wheelset: no weight limits for the rider, no tire restrictions beyond the recommended range, and compatibility with either tubeless or tubed setups depending on what a rider's already running. That flexibility matters more on a wheelset meant to survive years of club rides, local races, and long weekend routes than it would on a wheelset built for one race weekend a year. The shallower front and deeper rear work together on rolling terrain in particular, holding a stable line through crosswind sections on a descent while still giving back some aerodynamic benefit once the road flattens out and speed picks up again.

Reserve backs the rim with its lifetime guarantee, which carries more weight on a wheelset asked to do this much work across road, climbing, and the occasional rough patch of pavement than it would on a wheelset built for a single specialty. The 34|37 DT Swiss 240 fits a rider who wants one wheelset for nearly everything on the road bike — club rides, gran fondos, local racing, and the climbs in between — without needing a second set for durability's sake. Riders chasing the lowest possible weight or the fastest hub engagement available should look toward Reserve's DT 180 or DT 350 EXP builds instead; the 240 here is the version built to be serviced easily and ridden without much thought for years at a time.