The DHF incorporates ramped knobs for low rolling resistance and channel-cut knobs to increase gripping edges, giving straight-line control and precise cornering. The DHF incorporates ramped knobs for low rolling resistance and channel-cut knobs to increase gripping edges, giving straight-line control and precise cornering. Tubeless ready casing (TR) is compatible with tubes or tubeless with sealant EXO equipped models feature Maxxis` EXO sidewall protection which help prevent puncture from sidewall abrasions WT - Wide Track casing optimized for rims over 35mm internal width TERRA - 3C Maxx Terra is softer and offers more traction than 3C Maxx Speed, yet provides better treadwear and less rolling resistance than Maxx Grip