DetailsThe Crankbrothers Synthesis DH11 - I9 Hydra 29 Boost Pair Shimano is the ultimate choice for downhill mountain biking. This high-performance carbon wheel system has been specifically tuned and optimized to meet the demands of mountain bike riding.The front wheel is carefully tuned to improve handling and provide maximum grip and control in turns. On the other hand, the rear wheel is stiffly tuned to support peak loads and enhance stability and tracking at high speeds.Specifications- Engagement: 0.52º quiet engagement / six pawls- ETRTO: 585mm (27.5), 622mm (29)- Hub: Industry Nine Hydra- Inner Rim Width: Front 31.5mm, Rear 31.5mm- Outer Rim Width: Front 38.7mm, Rear 39.5mm- Rim Height: 18.75mm- Spoke Count: Front 28, Rear 32- Spoke Type: Sapim CX-Ray (front), CX-Sprint (Rear)- Warranty: Lifetime (rim only)- Weight: 1945g per set (27.5), 1995g per set (29)The Crankbrothers Synthesis DH11 - I9 Hydra 29 Boost Pair Shimano is the perfect choice for downhill mountain biking. Its tuned carbon wheel system ensures optimal performance, while the carefully crafted front and rear wheels address the specific requirements of mountain bike riding. With improved handling, enhanced stability, and maximum control, this wheel system is a game-changer. Order yours now and experience the ultimate downhill ride.