Michelin's Protek Max tubes use a proprietary butyl rubber with a unique shape and design so your tires hold their pressure longer. For excellent durability, the tube is reinforced at the valve too.
|Option||Barcode||Manufacturer's Part Number|
|20 x 1.5 - 1.75" / 40mm Presta valve|
|700 x 32 - 42c / 40mm Presta valve||00866993016660||30166|
|700 x 32 - 42c / Schrader valve||00866992784324||27843|
|20 x 1.5 - 1.75" / Schrader valve||00086699255891||25589|