- A purpose-built rear 27.5” tire for high-performance e-MTB - The rigorous demands of full power e-bikes require specific tread design and casing construction. The Zeppelin was engineered to deliver high volume for support, puncture resistance with an increased contact patch to optimize technical climbing and improve braking. All of this while lowering rolling resistance, increasing wear life and providing easy tubeless install with reliable air retention at low tire pressures - Uses e*thirteen's Endurance Compound first for its 30% longer wear life and exceptional durability, and secondly for maximized rolling efficiency, which reduces battery consumption - Large, edgy center knobs have a slight paddle arrangement, providing generous high torque climbing traction, even in loose conditions. The alternating center knob placement also improves the distribution of load across the contact patch, improving wear life and self-cleaning efficiency, as well as enhancing grip on slippery slabs and roots, while still digging into loose terrain. This center knob configuration also helps to provide a more predictable feel and consistent traction when transitioning from straight-line to aggressive cornering angles - Side shoulder knobs are heavily buttressed to withstand the cornering forces of heavier e-Bikes. The shoulder knobs feature horizontal upper sipes to maximize cornering traction, and arched cutaways with accordian side sipes, which help to control deformation and grip in uneven terrain like rock gardens and rooty areas