Crank Brothers Synthesis Enduro 29" Wheel Control and stability for enduro riding. The Synthesis Enduro alloy wheel system pairs Crank Brothers' front and rear-specific tuning philosophy with Industry Nine's legendary 1/1 hub - one of the most trusted hubs in mountain biking. The compliant front wheel runs a wider 31. 5mm inner rim width to maximize tire volume, cornering grip, and contact patch. The stiffer rear is built to handle peak enduro loads, with a narrower 29. 5mm inner rim width that sharpens the tire profile for improved rolling resistance and high-speed tracking. Sapim D-Light spokes up front, Sapim Race in the rear - each wheel gets exactly what it needs to do its job. Features Industry Nine 1/1 hubs front and rear one of the most reliable and widely respected hub platforms in mountain biking, with 4deg engagement on the rear for near-instant power transfer Front and rear-specific rim tuning compliant front (31. 5mm inner width) for grip and handling; stiff rear (29. 5mm inner width) for stability and tracking under load Sapim D-Light spokes (front) / Sapim Race spokes (rear) spoke selection optimized for the unique demands of each wheel position6013 T6 alloy rims with welded and sleeved rim joint for added strength and long-term durability SPECIFICATIONSHub Industry Nine 1/1Brake Mount6-Bolt Freehub Engagement4degRim Material6013 T6 Alloy Inner Rim Width31. 5mm (Front), 29. 5mm (Rear)Rim Height20mm Spoke Count28 (Front), 32 (Rear)Weight865g (29", Front), 1048g (29", Rear)Warranty2 years (rim only) | Crankbrothers | Synthesis Enduro 3 29" Wheel Front 15X110 6B | Aluminum