The bontrager se4 team issue 650b275 tlr mountain bike tyre is custom made for enduro racing with dh toughness and all mountain speed it has ramped edges for fast rolling along with sipes for increased traction in both wet and dry terrain tlr tyres are engineered for use withy bontragers tlr sealant for worry free setup and puncture protection along with a core strength three piece casing reinforcement which protects while keeping it supple and light