Schwalbe Extralight Tube SV20 Extralight rubber tube for 28 inch road wheels with french (Presta) valve. Available with oder 80mm valve. Proven for many year Schwalbe Extralight tubes offer the same reliability as normal tubes but simultaneously a lower weight. Extreme air pressure stable! The rubber compound makes it possible: less air leakage and less to pump. Extremely reliable! Quality control for safe riding pleasure: each Schwalbe tube is checked twice on air retention in the factory. Fits the following tire dimensions: 18-622 (700 x 18C) 20-622 (700 x 20C) 22-622 (700 x 22C) 23-622 (700 x 23C) 25-622 (700 x 25C) 22-630 (27 x 7/8) 25-630 (27 x 1.00) In general valves can be separated into three different groups: Presta valve= Sclaverand valve, Race valve, French valve, Dunlop valve= Wood, Bicycle or Dutch valve, Schrader valve= Standard, Car or Moto valve. Weight supplement: weighed by Bike24 Please visit our website at http://www.ecomtb.com.my OR https://shopee.com.my/eco_mtb ** There is 1-3cm errors due to manual measurement. Please kindly understand. ** Actual product colour may slightly vary due to photographic lighting sources or your monitor settings. ** WE DO NOT DO COD ** ONLINE ONLY ** We support original products only. ** PRICE INDICATED IS ALREADY BEST PRICE, EXCLUDE COURIER