Crank Brothers Synthesis Enduro Boost Wheel - 27.5in Rear, 12x148mm, HG

What Our Gearhead(R) Experts Are Saying: "The Synthesis Enduro Alloy wheels have completely changed how my bike handles. The tuned compliance up front gives me better grip in corners, while the stiff rear tracks like it's on rails. I run them tubeless and haven't had a single issue through an entire season of hard riding."Built for the rowdiest lines and longest days on big terrain, the Crankbrothers Synthesis Enduro Alloy Wheelset delivers a performance-tuned ride feel that's unlike anything else we've tried. The front and rear wheels aren't just different in size-they're intentionally designed to do different jobs. Up front, we get a compliant, wide-rimmed wheel that boosts traction and grip when cornering at speed. In the back, a stiffer, narrower rim offers sharper response, better rolling resistance, and incredible stability through rocky sections and high-speed chutes. These aren't just enduro wheels-they're race-proven systems that balance comfort and control where we need it most. The front rim has a wider 29. 5mm internal width to support larger tires and enhance grip, while the rear drops to a tighter profile for improved tracking and edge hold. Paired with Sapim spokes, welded rim joints, and tubeless-ready 6013 T6 alloy construction, the Synthesis Alloy system gives us the confidence to push harder into every turn, drop, and straightaway.