CRANKBROTHERS Synthesis Wheel Rear 29 Alloy Xct Boost I9 1/1 Hub XD Driver

Wheels sold individually not in sets.Tuned Front and Rear Alloy Wheel System for XC riding and racing.Front and rear specific wheels tuned and optimized to address the specific performance requirements and loads of mountain bike riding.Compliant tuned front wheel improves handling and maximizes grip and control in turns. Wider inner rim width supports wider tire profile in front, increased volume and contact patch, and rounds tire profile to enhance turning.Stiff tuned rear wheel supports peak loads and enhances stability and tracking at speed. Narrower inner rim width supports narrower tire profile in rear, improves rolling resistance, and sharpens tire edge for grip.Welded and sleeved rim joint for additional strengthengagement4ºETRTO (27.5)585mmETRTO (29)622mmhubIndustry Nine 1/1 HubHub Type6 Boltinner rim width front26.5mminner rim width rear24.5mmouter rim width front31mmouter rim width rear29.2mmrim height21mmRim Material6013 T6 Alloyspoke count front28spoke count rear32spokes frontSapim D-Lightspokes rearSapim D-Lightwarranty2 Years (rim only)Weight Per Wheel (29F)831gWeight Per Wheel (29R)978g