Ecovelò 2 Black Tyres 700 x 35 C (37 622) + Inner Tubes City Bike Trekking 28 1 5/8 3/8

700x35c - 700 x 35 28 1 5/8 3/8 (37-622) 700x35c The air chambers are made of butyl, a type of synthetic rubber that is very elastic and at the same time airtight. Depending on the compounds used, different product qualities can be obtained: Ecovelò air tubes have extreme characteristics in terms of air tightness and elasticity and can be used for a wide range of tyre sizes. Ecovelò air tubes have extreme characteristics in terms of air tightness and elasticity and can be used for a wide range of tyre sizes. The tire consists of four basic elements: carcass (frame), circle for a stable positioning on the rim, tread (mix) of rubber, puncture protection (except special ultralight and sports ones, where this feature is intentionally eliminated). For any information or clarification, prior to purchase, or for post-shipment issues (late delivery, defects or posthumous damages, etc.) please contact Seller's Customer Support with a message to the seller on Amazon.