I was disappointed with basically everything except the frame. This Hyper Havoc 26 Full Suspension Mountain Bike is extremely fun and reliable at the same time. If it drops in, with play, before the pinch bolt is tightened, the seatpost is probably too narrow. Currently Sold Out. Department: Men. The most common size is 27.2 mm (1.07 inches), which is seen on the majority of motorcycles, particularly high-quality models. Any halfway decent clamp should easily account for 1mm error or more. Have questions or want to discuss cycling? The black mountain bike has front and rear linear-pull brakes. Avoid scams, deal locally havoc f5 hyper; bontrager rhythm mtb shoes; anthem advanced pro 29 1 review; fox rp23 bushing kit; planet x viner; toy electric bike; .