The Mach1 CFX wheelset in black is a wheelset manufactured for road bikes that offers great performance and safety at an excellent price/performance ratio. They are made from 6063T6 Alloy Aluminium. If you are looking for a multipurpose wheel to ride safely with your road bike, the Mach1 CFX wheels are a great option.It\'s a wheel with 20mm of profile, mounted with a sealed hub. This wheel has a machined sidewall, so it\'s compatible with all brake calipers.It\'s size of 700c, is compatible with all the wheels of road bikes. The tyres recommended are from size 700cx25 to size 700cx35. You will need a 48mm inner tube. And you need to mount a rim tape between the rim and the inner tube to prevent and reduce punctures..