Everything important about this jacket is already in its name. Trail Boss is at home on... well yes... the trails!the centre tread design minimises rolling resistance for fast riding, that is until the brake allows it to bite hard. The outer lugs then provide traction in corners and bumps. The wide Trail Boss then comes with a more aggressive tread pattern to match its increased volume, providing even better traction in poor conditions and wet conditions. Want to go to your favorite singletrack and dominate it? Then either Trail Boss.the Trail Boss is usually used as a rear tyre with the WTB Vigilante up front. New WTB tyre protection - SG2 In addition to its low weight, the SG2 tyre protection provides excellent protection against punctures and punctures.this new protective layer is lightweight and features an ultra-thin nylon liner that covers the entire surface of the shell from heel to toe. So you can go out on any surface without fear of punctures. How much more durable are the new tyres with SG2? Laboratory tests show that the addition of SG2 provides 33% better sidewall protection and 17% better tread protection than standard 60 TPI tires without SG2. That's why WTB has come up with durable tires that will hold up on any surface. Size Level ETRTO GMS Tubeless Compatibility Casing Weight Compound Min-Max Pressure* Part Number 29 x 2.25" TCS Light/Fast Rolling + SG2 54-622 54/57 TCS Tubeless Single-ply 60 tpi 909g TriTec 20-35 psi W010-0887 29 x 2.25" TCS Light/Fast Rolling + SG2 (tan) 54-622 54/57 TCS Tubeless Single-ply 60 tpi 883g Dual DNA 20-35 psi W010-0886 26 x 2.25" Comp Tube-Type 54-559 54/57 Inner tube required Single-ply 60 tpi 865g DNA 30-45 psi W010-0880 27.5 x 2.25" Comp Tube-Type 54-584 54/57 Inner tube required Single-ply 60 tpi 891g DNA 30-45 psi W010-0784 29 x 2.25" Comp Tube-Type 54-622 54/57 Inner tube required Single-ply 60 tpi 914g DNA 30-45 psi W010-0787