Crank Brothers

Synthesis V2 Alloy Enduro i9 Boost Wheel - 27.5in

What Our Gearhead® Experts Are Saying:

"This rear wheel has been bombproof. The I9 engagement is fast and crisp, and the rim stays true even when I smash through rock gardens at speed. It's dependable, fast, and feels planted every time."

Tuned to perform under pressure and designed for real-world enduro terrain, the Crankbrothers Synthesis Alloy 2.0 Enduro 27.5in Boost Wheel with the Industry Nine 1/1 hub delivers a dialed combination of trail grip and back-end control. Each wheel in the system is tailored for its role, and the 27.5in format adds maneuverability and snap for riders who want a more playful feel without sacrificing stability.

Up front, the 30mm inner rim width enhances grip and turning confidence, while the compliant 28-spoke build reduces fatigue and improves line control. In the rear, a narrower 28.5mm rim and 32-spoke count stiffen the platform for big hits and fast exits. The I9 1/1 hub delivers a 6-pawl system with 4° engagement for immediate power when you need it most. Combined with Boost spacing and a bombproof alloy construction, this is a wheel built to charge hard from top to bottom.