Sometimes you have to wipe the slate clean and start from scratch to get what you want - and that's precisely what the folks at RaceFace did to create the Turbine R. Focusing on features deemed most important, the Turbine was designed for optimal versatility and performance. The 6069 aluminum is 40% stronger than standard 6061 and an asymmetrical rim design creates a more balanced spoke tension, resulting in improved strength, durability and a longer lasting wheel. Bringing it all together is the ultimate hub. Like the rest of the Turbine R, the Vault hub was built from the ground up. An oversized hub shell adds stiffness and power transfer as well as even spoke length and tension. Wider bearing spacing improves durability and the 60 tooth drive ring has six pawls that work in two groups of three, doubling the points of engagement for almost instant power transfer. If RaceFace set out to find optimal balance in a wheelset, they definitely succeeded with the Turbine R. And if you're wondering what the "R" means: R is for Rally. Features: 4.5mm offset improves spoke balance and wheel stiffness Single spoke length for easy serviceability 6069 Aluminum is 40% stronger than standard 6061 Tubeless Ready Rim 15x100 is convertible to: 9x100QR, 20x110, & 15x100 Torque Cap 15x110 Boost option