Alterating vertical knobs with deep siping and 3 horizontal knobs paired with large corner knobs for improved traction in the turns. 3 time World Champ DH rider Greg Minnaar`s signature DH tire designed by the man himself. Combines elements from 4 of Greg`s favorite Maxxis tires the DHR II DHF Shorty and High Roller. TR - Tubeless Ready - sealant required. EXO - sidewall protection which helps prevent puncture from sidewall abrasions