Schwalbe big ben plus mtb tyre greenguardthe schwalbe big ben plus mtb tyre features a robust 3mm greenguard protection strip and reinforced sidewalls which make this tough tyre a real slogger it is ece r75 approved comfortable and resilient making it the perfect choice for cargo bikes and everykind of e bike features bead wired compound endurance casing greenguard skin snakeskintechnologies double defense greenguard combined puncture protection under the tread and on the sidewalls