Suitable for use in tubeless wheel and tyre systems, the Rocket Ron truly lives up to its name, as with its tight tread pattern it offers a very low rolling resistance. The tread’s advanced design includes stable shoulder studs so you can maintain grip the corners. Plus, there are still enough gaps between the studs to clear mud efficiently, preventing “spin-outs” when you’re attacking steep climbs. Additional Features: Cleverly designed tread balanced for low rolling resistance whilst remaining grippy Sufficient gaps for amazing self-cleaning properties Stable shoulder studs Recommended Tyre Pressures: 26x2.25”: 1.8-3.7 Bar (26-54 psi); 27.5x2.1”: 2-4 Bar (30-55 psi); 27.5x2.25”: 1.8-3.7 Bar (26-54 psi); 27.5x2.6”: 1.5-3 Bar (20-45 psi); 27.5x2.8”: 1.2-2.6 Bar (17-38 psi); 29x2.1”: 2-4 Bar (30-55 psi); 29x2.25”: 1.8-3.7 Bar (26-54 psi) Weights: 26x2.25”: 585g; 27.5x2.1”: 570g; 27.5x2.25”: 620g; 27.5x2.6”: 785g; 27.5x2.8”: 835g; 29x2.1”: 560g; 29x2.25”: 600g Technologies: ADDIX Speed: The compound for XC race specialists, It catapults Schwalbe's XC tyres into a new performance dimension. It's the answer for those who’d like to go even faster. There’s only one thing that ADDIX Speed really loves and that’s speed. So the rolling resistance has been chopped yet again. ADDIX Speedgrip (27.5x2.25" only) ADDIX Speedgrip is the universal compound. It definitely has the widest range of use. Perfect for XC, AM and Trail: for the majority of EVO tyres there’s a version with ADDIX Speedgrip. It replaces the previous PaceStar compound where a significant, though not the only difference, during extensive use is more mileage and longer life. Super Ground Combines lightweight and stability. Feels comfortable in any terrain. Balanced ratio of puncture protection and smooth-rolling. For flowing trails, long rides and any terrain. Tubeless Technology: For all ambitious sports cyclists, Tubeless is the right choice. Only Tubeless achieves the best values in terms of more speed, grip, puncture protection and comfort E-25 (E-Bike Ready): Tyres with the recommendation "E-25" are the perfect choice for all pedelecs with pedal assistance up to 25 km / h. The most important criterion for this recommendation: security.