Hypoallergenic black donut tube, with a shorter Schrader valve stem It’s made of isobutylene isoprene synthetic rubber, an upgrade from a standard tire tube. It’s more resistant to heat, abrasion,...
Hypoallergenic black donut tube, with a shorter Schrader valve stem It’s made of isobutylene isoprene synthetic rubber, an upgrade from a standard tire tube. It’s more resistant to heat, abrasion,...