Review on 🚴 High-Performance Triple Pack: Continental Race 28 Presta 60mm Tubes for 700 x 18-25c Tires by Timothy Barnes

a pack of 3 tubes. Inflated to 90psi. A tube punctured a 2-3mm hole at 0.8 miles on the first test ride for no apparent reason! I had to walk home. The other two tubes seem to be fine so far. 21 miles on one, 10 on the other. The Presta valve tips feel wobbly and cheap compared to the stock tubes I replaced (brand unknown). Also, these stems were about 2 cm longer, so they were a bit more difficult to maneuver in place. I will not buy these again. primarily for security reasons.