At Escapa, we like things to run smoothly, which is why we’re bringing you theDt Swiss XRC 1501 Spline One 29 Front Wheel—asophisticated, well-designed cross-country wheel that’s lightweight, comfortable, and fast all at once. With a 30 mm rim width, the XRC 1501 is wider than its predecessor (but weighs less) and therefore offers more support for the tires. This allows for lower tire pressure, which means less rolling resistance on rough terrain. As you can see, theDt Swiss XRC 1501 Spline One 29 Front Wheel is a very well-rounded product.
When it comes to mountain bike wheels, lighter means wider: XRC 1501 Spline® One Boost
Cycling is all about physics. When cornering, lateral forces act on the tire. The tire’s contact patch moves in the opposite direction of the lateral force. When cornering with a narrow rim, the tire’s contact patch shifts laterally and no longer rests on the rim. The result is an unstable riding experience. The resulting folding of the tire creates tension, and the tire pulls toward the opposite Talon. This causes air to escape between the Talon and the rim floor—a phenomenon known as tire burping. The contact patch of a tire on a wide rim lies within the rim flanges. The tire’s sidewall rests against the wide rim, which increases control. Therefore, a wider tire can be driven at a lower air pressure than a narrower tire.
And lower air pressure means less rolling resistance. A wheel with low air pressure will always roll over rough surfaces more easily than a wheel with high air pressure, since the tire is able to conform to the terrain. A wheel with high air pressure cannot absorb obstacles, and the bike must move upward—which is comparable to lifting work—thereby increasing rolling resistance. Lower air pressure leads to less fatigue, as the rider has to expend less lifting effort.
Product Features - XRC 1501 Spline One 30mm Carbon
Use: Cross Country
Model: XRC 1501 Spline One
Wheel Size: 29"
Tire Diameter: 622mm
Tire Type: Clincher
Tubeless-ready: ✔
Inner width: 30 mm
Outer width: 36 mm
Axle system: Boost 15/110 mm (thru-axle)
Hub type: 240 Straightpull
Rim: Carbon, Talon, UD finish
Spokes: DT Competition Race® straight-pull (black)
Nipples: DT ProLock® Squorx ProHead (black)
Holes/spokes: 28
Lacing pattern: 3-cross (1:1)
Valve hole: Presta / SV Ø 6.5 mm
Disc mount: Center Lock incl. IS 6-bolt MTB adapter
Recommended maximum system weight: 110 kg (body weight + bike + gear)
ASTM rating: 3
Material
Rim: Carbon
Hubs: Aluminum
Spokes: 18/10 stainless steel
Spoke Nipple: Aluminum
Freehub body: Aluminum
Color: Black
Weight: approx. 728 g (manufacturer's information)
Includes:
XRC 1501 Spline One 30 Carbon CL Boost 29" Front Wheel
32mm Tubeless tape
Black aluminum Tubeless valve, 18–25 mm
IS 6-bolt MTB adapter
Technologies
Greater Width
Wider than ever: 30mm inner width means less rolling resistance. Cross Country wheels are ideal for fast races, so it’s essential to minimize resistance whenever possible. On rough terrain, rolling resistance can account for up to 69% of total resistance.
SPEED = ENERGY / MOMENT OF INERTIA + ROLLING RESISTANCE + GRADIENT RESISTANCE + FORWARD MOTION RESISTANCE
Rolling resistance is defined as: rolling resistance coefficient × weight × gravitational acceleration. The coefficient is determined by the wheel size, tire cross-section, tire characteristics, tire pressure, tread pattern, and the ground surface. While the wheel has little influence on most of these factors, Dt Swiss modified the tire bead seat. A wider rim provides better tire support, which allows for lower tire pressure and results in lower rolling resistance on rough terrain.
240 Straightpull Hubs – Dt Swiss Hub Technology
Lighter, stiffer, more precise, and even easier to maintain than its predecessor: The 240 Straightpull hub is a must-have for 1501 SPLINE® ONE wheels. Dt Swiss hubs have earned their legendary reputation for quality and performance. There are numerous features that make this product a winner. The non-contact seals and high-precision construction ensure smooth bearing operation; every bit of the rider’s energy is converted into forward momentum. These features, combined with the ultra-lightweight design of all hub components, highlight the racing heritage of this classic hub.
SPLINE® Technology
With their intricately machined hub shells, intelligently positioned spokes, and proven freewheel technology, Dt Swiss SPLINE® wheels are designed with the needs of modern riding in mind. SPLINE® allows cyclists to go faster and farther, making the cycling experience even more enjoyable. The combination of Dt Swiss’s meticulous attention to detail and legendary reliability that Spline offers will put a smile on your face ride after ride, year after year.
Straightpull Technology
The term “Straightpull” refers to spokes with no bend at the head. This design provides an ideal strength-to-weight ratio compared to conventional spokes. Thanks to their more precise alignment and direct path, Straightpull spoke technology creates a stiffer, more responsive wheel.
