Synthesis E Carbon Boost Wheelset
The Crank Brothers Synthesis E Carbon Boost 27.5in Wheelset challenges what we thought we knew about progression in mountain bike wheels, bringing in a whole new concept with true endur-tuned stiffness, and just the right touch of compliance. Rather than fighting between an ultra-stiff option for tracking, and a compliant offering for comfort and grip, the engineers at Crank Brothers flipped the idea on its head and said "Why not both?" And this is what lands us with these unique hoops that combine a front and rear specific wheel, allowing us to track with unbeatable prowess in the back for elevated stability and improved rolling resistance, while the front offers damping from harsh trail chatter, room for loftier tires to grip the trail, and more compliance for better handling in turns.
To start to understand the Synthesis E Wheelset, we need to look at the differences between each rim. The front rim uses a wider profile, with an outer width of 37.5mm, and inner of 31.5mm — this translates to a wider platform to host beefier tires, allowing for soaking up vibrations, meanwhile amping up the traction to keep you locked into your line in loose and wily 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 29.5mm internal and 36.5 external width, laced up with a whopping 32 spokes for a stiffer feel that offers undeniable control, power, and tracking. But the differences don't stop at the rims — different spokes are employed on each wheel, with the front using Sapim's D-Light that keep weight at a minimum, without sacrificing strength, and the rear dialing in the stiffer, heavy-duty feel you need for tracking with Sapim's Race spoke.
This version of Crank Brother's Synthesis Carbon Wheels finds itself laced up neatly to the Synthesis Standard hub. While we admit, it isn't quite as flashy or fancy as the Synthesis 11 on its counterpart, the Standard still offers quick, 17-degree engagement, which is plenty to get you up and over punchy climbs, and it comes with a significant savings to your pocket book, so you won't have to spend all summer apologizing to your significant other for the dent you put in your savings.
- Crank Bro's hoops strike a balance between stiffness and compliance
- Front-and-rear specific wheels keep your needs a priority
- Front wheel is compliance tuned for better grip and control
- Extra-stiff rear wheel boosts stability, and tracking
- Wide front rim has room for lofty tires for extra traction
- Reduce rolling resistance with narrower rear rim
- Item #CRN004N
- Rim Material
- carbon fiber
- Wheel Size
- Tire Type
- tubeless-ready clincher
- Rim Depth
- Rim Width
- [front internal] 31.5mm, [front external] 37.5mm, [rear internal] 29.5mm, [rear external] 36.5mm
- Brake Compatibility
- Synthesis Standard
- Front Axle
- 15 x 110mm Boost
- Rear Axle
- 12 x 148mm Boost
- [front] Sapim D-Light, [rear] Sapim Race
- Spoke Count
- [front] 28, [rear] 32
- Claimed Weight
- [pair] 4lb 1.1oz (1845g)
- Manufacturer Warranty
- lifetime on rims
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