TheCrank Brothers Synthesis E 29er Carbon Wheelset are MTB\'s first tuned carbon wheel system for cross country/trail riding and racing. Synthesis is a tuned and optimized front and rear-specific carbon wheel system that addresses the specific performance requirements and loads of mountain bike riding. A compliant tuned front wheel to enhance control and handling characteristics through increased dampening while maintaining the wheels contact patch. The front wheel is balanced with a stiff tuned rear wheel. This offers directional stability, anchoring and responsiveness in handling at speed.Crank Brothers Synthesis E 29er Carbon Wheelset FeaturesMountain bike\'s first tuned carbon wheel system for cross country/trail riding and racing.Front and rear-specific wheels tuned and optimized to address the specific performance requirements and loads of mountain bike riding.A 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 a narrower tyre profile in the rear, improves rolling resistance, and sharpens tire edge for grip.Crank Brothers Synthesis E 29er Carbon Wheelset SpecificationEngagement17º (x6)ETRTO (27.5)585mmETRTO (29)622mmHubSynthesis StandardInner rim width front31.5mmInner rim width rear29.5mmOuter rim width front37.5mmOuter rim width rear36.5mmRim height18mmSpoke count front28Spoke count rear32Spokes frontSapim D-LightSpokes rearSapim RaceWeight per set (27.5)1845gWeight per set (29)1905g