One difference between WTB's Vigilante Team Issue TCS 27. 5in Tire and the standard Vigilante is that instead of a 5060a Dual DNA compound, a tacky 45a durometer rubber covers a 60a base. This means that it shares the same nicely proportionate blocks and spacing that allow this 2. 3in wide tire to excel in both loose and wet all mountain conditions only now it's optimized to favor traction with a Gravity DNA rubber compound. The sticky 45a rubber grips like nothing else in WTB's line, and because of the 60a base, it won't squirm under heavy use or loose energy under power. Also, once you wear through the 45a outer, the 60a rubber helps to increase longevity. Another important difference is that the Team Issue Vigilante uses an Enduro casing. This means that it receives an additional cut resistant nylon layer at the sidewall in order to boost the Tubeless Compatible System's TCS resistance to punctures on technical trails that are strewn with sharp rocks. TCS is a lightweight, sealant based tubeless casing that provides a positive bead and rim hook joint to prevent burping and air loss. The Vigilante Team Issue TCS 27. 5in Tire is UST compatible, with the use of sealant, and it's available in the 2. 3in width. Please note that this tire does not include either tire sealant or rim tape.