Control Tech Comp-QR Quick Release Carbon Lever Review Posted: August 10, 2018 Under: Bike Wheels and Accessories By ChillyBoulder no Comments Material: carbon titanium Open/close: QR lever Length: 100-130mm Finish: black Weight: 63g Material: carbon titanium Hi-tech combination of titanium and carbon for this exquisite QR set/Suitable for both road and MTB wheels set/Very lightweight.