Φ28.6 Taper Handlebar is now available for the Stem Kit! Taper Handlebar without the need for a Handlebar Brace, which is both rigid and flexible.. Handlebar width 715mm to fit the big bike. Realizes sporty riding and creates a powerful handlebar area.. The thickness of Clamp (Φ28.6) is narrowed down to Φ22.2 toward Grip to obtain high density and high rigidity..