Control & stability for E-MTB riding The Crankbrothers Synthesis E-MTB Alloy 2.0 wheels are designed to meet the demands of pedal-assist mountain biking, offering the perfect balance of control, durability, and stability. This wheel system features a compliant front wheel for enhanced grip and precision through rocks and roots, paired with a stiff rear wheel to withstand impacts and deliver stability during cornering loads. With upgraded materials, refined finishes, and advanced rim profiles, the Synthesis E-MTB Alloy 2.0 takes our front- and rear-specific tuned wheel design to the next level. Whether you’re conquering steep climbs or powering through challenging descents, these wheels provide unparalleled directional control, predictable handling, and muted trail chatter for an elevated riding experience. Backed by a lifetime warranty, the Synthesis E-MTB Alloy 2.0 wheels are ready to take your E-MTB adventures to the next level. Features: Tuned Front & Rear System: Optimized alloy wheels designed for E-MTB riding, with front- and rear-specific tuning to meet the unique performance demands and loads of mountain biking Compliant tuned front wheel improves handling, grip and cornering control with an inner rim width that supports a wider tire profile, increasing volume and contact patch for improved turning performance Stiff tuned rear wheel improves stability and tracking at speed by absorbing peak loads. A narrower inner rim width optimizes rolling resistance and sharpens tire edges for improved grip A reinforced rim construction with 6069 aluminum and a shot-peened finish provide superior impact resistance and fatigue strength Available equipped with Industry Nine 1/1 with 4 degrees of engagement, or Crankbrothers Ratchet hubs with 10 degrees of engagement, upgradeable to 6.6 degrees of engagement with our 54t Ratchet Upgrade Kit Rims covered by lifetime warranty