Synthesis V2 Alloy DH i9 Boost Wheel - 29in

What Our Gearhead® Experts Are Saying:

"I’ve smashed this wheel through rock gardens, off drops, and into roots without mercy. It keeps holding strong. The Boost I9 hub feels incredibly responsive, and the shot-peened 6069 alloy rim has taken hit after hit with zero issues. Best alloy gravity wheel I’ve used—period."

Engineered for high-impact gravity riding with no compromise on responsiveness or durability, the Crankbrothers Synthesis Alloy 2.0 DH 29in Boost Wheel with Industry Nine hubs delivers a ride-tuned experience that elevates confidence at speed.

The rear rim tightens things up with a 29.5mm internal width and 32-spoke layout, tuned for increased support, tracking, and impact resistance during harsh landings and compressions. Shot-peened 6069 aluminum significantly improves fatigue life, crack resistance, and dent prevention. At the core is the Boost-spaced Industry Nine 1/1 hub, featuring a 6-pawl system and tight 4° engagement for powerful, responsive riding. Whether you're hammering down tech trails, hitting features in the park, or linking up DH shuttle runs, this wheel is built to match the intensity.