PRO-Line, wire, 30 TPI, black / reflective For e-bikes up to 25 km/h, the PRO-Line ideally combines two puncture protection materials, offering protection against damage and flat tires. The rubber has strong rebound properties which repel sharp objects and prevent penetration. The reinforced carcass (30 TPI) ensures better balance and stabilizes the extra thick protective belt. 3 mm puncture protection insert, Protection Level 5 Art Item Version Wire bead E-bike type ready ETRTO 47-559 Features Reflective Application City/Trekking Main color black Wheel size 26 " TPI / EPI 30