Synthesis XCT 11 Carbon Boost Wheelset
When it comes to carbon fiber wheels, stiffer is not always better. Some wheels can be overly stiff, leading to a harsh ride that may require you to lower your air pressure to compensate. On the flip side, wheels that are too compliant miss out on that feeling of precise tracking in rough terrain. When designing their new set of wheels for cross country racing and trail riding, Crank Brothers took a hard look at stiffness vs. compliance and delved a little deeper to figure out the ideal balance of each. The Synthesis XCT Trail 11 Carbon Boost Wheelset is the result of this effort, featuring a front-specific wheel tuned for compliance, improved grip & handling, and a bit more vibration damping, paired with a rear wheel that's tuned for stiffness and exceptional tracking at speed. The rims are then laced up to the Synthesis 11 hubs with ridiculously quick and snappy Industry Nine Hydra internals.
To understand the Synthesis XCT Wheelset, we need to look at the differences between each rim. The front rim uses a wider profile, with an inner rim width of 26.5mm that supports wider tires and does a better job absorbing trail chatter, meanwhile amping up the traction to keep you locked into your line in loose corners. This rim is laced up with 28 spokes — 4 fewer than the rear wheel, allowing just a little more compliance to elevate vibration damping. In the back, Crank Bro's opt for a slightly narrower rim with 24.5mm internal width, laced up with a whopping 32 spokes for a stiffer feel that offers undeniable control, power, and tracking. With the narrower internal width, you have the option of running a narrower rear tire for improved rolling resistance and a sharper cornering edge.
Since nobody wants to waste their efforts on a hub that doesn't react quickly, Crank Brothers implements the Synthesis 11 hub with Industry Nine Hydra internals that provide near-instantaneous 0.52-degree engagement. This is nearly six-times quicker than their predecessor, and means you'll be able to get on the gas instantly and solidly when you're mashing up punchy climbs and ratcheting through technical terrain. The Synthesis 11 hubs are laced with Sapim CX-Ray spokes for exceptional strength and longevity—another upgrade from the standard Synthesis wheels.
- A tuned carbon wheel system for XC racing and trail riding
- Front-and-rear specific rims optimize stiffness and compliance
- Compliance-tuned front wheel for improved handling and control
- Stiffer rear wheel for stability and precise tracking
- Wider front rim has room for traction-boosting wide tires
- Narrower rear rim offers lower rolling resistance
- Synthesis 11 hubs with snappy Industry Nine Hydra internals
- Lifetime warranty on rims so you focus on the ride
- Item #CRN004Q
- Rim Material
- carbon fiber
- Wheel Size
- Tire Type
- Rim Depth
- Rim Width
- [front internal] 26.5mm, [front external] 31.1mm, [rear internal] 24.5mm, [rear external] 29.5mm
- Brake Compatibility
- Synthesis 11 (Industry Nine Hydra Hub)
- Front Axle
- 15 x 110mm Boost
- Rear Axle
- 12 x 148mm Boost1
- Sapim CX-Ray
- Spoke Count
- [front] 28, [rear] 32
- Claimed Weight
- [set] 3lb 5.6oz (1519g)
- Manufacturer Warranty
- [rims] lifetime
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