Crank Brothers

Synthesis V2 Alloy Enduro CB Ratchet Boost Wheel - 29in

What Our Gearhead® Experts Are Saying:

"I've tested plenty of enduro wheels, and the Synthesis Alloy 2.0 strikes a balance I haven’t seen before. The dual-wheel tuning really works—more grip and control up front, more support and stiffness in the back. Add in the CB Ratchet hub’s 10° engagement and you’ve got a fast-responding, durable setup that takes a beating."

Designed in collaboration with Commencal, the Synthesis Alloy 2.0 29in Enduro Wheel with CB Ratchet represents a leap in alloy wheel performance. By tuning the front and rear wheels individually, Crankbrothers has engineered a ride that blends confident grip and trail feel with rear-wheel stiffness and power transfer. The compliant front features a 31mm internal width, 28 spokes, and higher spoke tension for enhanced tracking and handling through chunder. The stiff rear matches a 29.5mm internal width with 32 spokes and thicker tapered rim walls, ready to handle high-load compressions and big hits.

Each rim is crafted from 6069 aluminum with a shot-peened finish, giving it up to 204% better fatigue strength over its predecessor. Reinforced sidewalls and a new impact-resistant profile combat denting and pinch flats, keeping your tires seated and your wheels spinning through the nastiest terrain.

This model comes equipped with a Crankbrothers CB Ratchet hub delivering a snappy 10° engagement. This wheelset is purpose-built for riders who demand resilience and control when racing against time—or gravity.