So if you looking to make your bike lighter and faster then wheels are the best solution for you to save the weight and increase your speed - Rotational Mass is your key. Lighter the wheel the faster pickup and speed! However a lighter rim is often narrow and weaker, making it useless to today's modern trails and your hard hitting Enduro full suspension requirements. Well @santacruzbicycles have spent years perfecting the perfect wheels, with a Lifetime Guarantee to back them... the Santa Cruz Reserve carbon #mountainbike wheels have now landed. Tested over and over again, then given to some of the Worlds best riders to test, their rims are solid, light, stunning and even asymmetrical (which if you talk to any good wheel builder, like our guys, they will tell you that = sense). The rims are wrapped in a way the leaves no horizontal join, then finished to the highest standard so the carbon has little weak spots. Carbon often cracks due to the weaker surface area, by ensuring the entire rim has the precise amount of carbon fibres both inside and outside, the rim is then stronger. The holes in the rims are then supported externally keeping the internal carbon structure fluid. Santa Cruz created a jig to test at what torque the spokes would pull out of the rim. They couldn't, it simply snapped the spoke every time. The rim has also been developed to have an amount of give / flex, due to carbon being so stiff, they needed to find a balance that meant the wheels could take impact, still be laterally stiff yet still comfortable to ride on. Demo set coming into our store soon.