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

Wheels sold individually not in sets.Tuned Front and Rear Alloy Wheel System for enduro 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 strength. engagement4º ETRTO (27.5)585mmETRTO (29)622mmhubIndustry Nine 1/1 HubHub Type6 Boltinner rim width front31.5mminner rim width rear29.5mmouter rim width front36.2mmouter rim width rear34.4mmrim height20mmRim Material6013 T6 Alloyspoke count front28spoke count rear32spokes frontSapim D-Lightspokes rearSapim Racewarranty2 Years (rim only)Weight Per Wheel (27.5F)837gWeight Per Wheel (27.5R)1018gWeight Per Wheel (29F)865gWeight Per Wheel (29R)1048g