Giant Contact Advantage 27.5 2019
Arguably the most important benefit of 27.5 over 29 is quicker acceleration. This is the "snap" that a rider feels when they push hard on the pedals. The Giant Contact Advantage has snappier acceleration and a reduced angle of attack for a smoother, more agile ride. The Contact Advantage is a significantly lower bike, and the rotational wheel weight helps you climb faster with less effort. A larger tire contact patch, increased stiffness, and optimised frame geometry improve traction, braking,