The new body of the k233o classic 2 is the combination of a dual material injection one to provide a specific colour for the body and another for the support surface the new large and dimpled support surface ensures excellent stability for the foot on the pedal and comfortable pedaling with adjustable range for the spring tension between 8 and 12 allowing any type of user from beginner to experienced rider to find the fit that best suits the way they ride the k233o classic 2 spindle m