The kinesis gf ti now uses long drop calipers 47 57mm this allow clearance for 28c when using full size guards for the ultimate all weather mile muncher the super versatile gf ti has integrated mudguard rack mounts and with curved seat stays for comfort that makes this bike anything you want it to be winter training comfy lightweight summer bike or even light tourer the options are endless made from aero grade brushed ti3al25v titanium with double pass welding to assure a strong fr