Details:Mountain bike's first tuned carbon wheel system for cross country/trail riding and racing. Front and rear specific wheels tuned and optimised to address the specific performance requirements and loads of mountain bike riding. Compliant tuned front wheel improves handling and maximises grip and control in turns. Wider inner rim width supports wider tyre profile in front, increased volume and contact patch, and rounds tyre profile to enhance turning. Stiff tuned rear wheel supports peak loads and enhances stability and tracking at speed. Narrower inner rim width supports narrower tyre profile in rear, improves rolling resistance, and sharpens tyre edge for grip.Specs:- Engagement: 0.52º quiet engagement / six pawls- ETRTO: 585mm (27.5), 622mm (29)- Hub: Industry Nine Hydra- Inner Rim Width: Front 26.5mm, Rear 24.5mm- Outer Rim Width: Front 31.1mm, Rear 29.5mm- Rim Height 19mm- Spoke Count: Front 28, Rear 32- Spoke Type: Sapim CX-Ray- Warranty: Lifetime (rim only)- Weight: 1490g per set