TIRE CSTP FRONT RUNNER 20x3.30 BK/BK/REF Fat bike tire with low profile tread made up of micro-knurled raised block sections. Provides excellent on road grip and easily handles hard pack and light off road use. DMIX - Defender mix puncture protection features a highly elastic rubber impregnated with aramid fibers beneath the tread - Level 2 protection. E - designated tires are designed to specifically withstand use on E-Bikes, with an upgraded casing and bead. Item Specifications: Size: 20x3.3, Tread/SW: Bk/Blk, Style: Standard, Reflective Sidewall: Yes, Features: DMIX, ISO: 406,