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Ask Jaroslav Kulhavý, and he'll tell you—every gram counts in cross country racing. But with XC tracks becoming more aggressive than ever, just being a flyweight wheel is no longer sufficient. Now, wheels need to be as tough and stiff as they are light, with all of the handling characteristics that seasoned XC riders have come to expect. These days, wheels need to be more like the new Control SL 29 with 148 rear spacing.
To check all of these design boxes, we started by looking at our Traverse SL rim to see if we could extract the wide-rim benefits while keeping the weight at, or below, the previous Control SL—the existing benchmark. Based on the width we knew was ideal for the desired ride characteristics, we tuned the rim shape to optimize the stiffness, weight, and ride quality of the system as a whole—too tall and the wheel rides too stiff, too shallow and the wheel is too flexy. Our engineers meticulously went through rim shape developments to find the perfect balance and optimal geometry, and after fine-tuning multiple layup iterations and schedules, we ended with a 25-millimeter internal width rim that's approximately the same weight as the previous Control SL.
Being able to add material and width (3mm to be exact), without a weight penalty makes for a stronger XC wheel, but we weren’t content settling with just an increase in strength. With our goal being the fastest race wheelset available, we took the new and old rims, paired them with a set of size 2.0 Fast Trak tires, and performed rolling resistance tests at both 20 and 30 PSI. The result? The new, wider rim tested faster at both pressures, confirming our line-wide hypothesis that wider is not only stronger, but faster.
Keeping the Zero Bead Hook design, the new Control SL rim keeps all the sought-after features that come with this design—added impact resistance, easy tubeless tire installation, and a better tire seal on the rim. And with a lighter rim, you're also rewarded with extremely low inertia, that translates to faster accelerations for the punchy efforts required of XC racing. Focusing on the wheels as a system, we kept with our core design tenants of lightweight and durability, so we made sure not to skimp on the build. Each wheel is built by hand, and while this is somewhat of a lost art, we know that a real person can achieve qualities that a machine simply can’t. When hand-building, little discrepancies can be found that would otherwise be missed by a machine, so we took the refined 2Bliss Ready rim and matched it with our CNC-machined hubs with DT Swiss Competition Race spokes. The hub internals feature sealed bearings and DT Swiss 240 internals with a 54-tooth star ratchet in the rear, making for lightning fast engagement.
Finally, with the 110/148 variant, you receive all of the benefits that Boost spacing offers. By increasing the width of the front and rear hub flanges, and in turn, increasing frame and fork clearance and stiffness, you obtain a stiffer, stronger, and more durable system at a minor weight penalty.
If you’re in need of sub-1400-gram, race-ready wheelset that has handling and strength of a modern trail wheel, the Control SL 29 148 is the perfect choice.
- Rim Type: Carbon clincher, 2Bliss Ready, Zero Bead Hook design. Black graphic under clear coat.
- Rim Material: Carbon fiber
- Rim Width: 25mm internal
- Front Spoke Pattern: Radial/Three-cross (2:1)
- Rear Spoke Pattern: Three-cross (1:1)
- Spoke Count: 24-hole Front, 28-hole Rear
- Spoke Type: DT Swiss Competition Race
- Nipple Type: DT Swiss Pro Lock hexagonal
- Front Hub: DT Swiss Internals, 15x110mm thru-axle, 15mm end caps included (19mm & 31mm OD)
- Rear Hub: CNC-machined alloy body, high-quality DT 240 internals and 54t quick engagement ratchet system cassette, includes SRAM XX1 11-speed freehub and 148 end caps
- Includes 148 drive-side end cap for 10-speed freehub body—freehub sold separately
- Bearing Type: Sealed cartridge
- Assembly Method: Hand-built
- Includes Roval Tubeless Plugs for the lightest possible tubeless setup and tubeless valve stems in order to make tubeless set-up a touch easier.
- Total Wheelset Weight: 1330g
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Review ROVAL CONTROL SL 29 148