Continental Standard tube for road race - available with presta valve only. Fitting for tire dimensions 18 to 25-622 (700x18C to 25C).
Compatible with following tire dimensions:
20-622 → 25-622 (700 x 20C → 700 x 25C)
20-630 → 25-630 (27 x 3/4 → 27 x 1)
In general valves can be seperated 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
Material: rubber
Weight supplement: manufacturer information
| Product name: | Continental Race 28 Tube | 
| Manufacturer: | Continental | 
| Item code: | CON100423 | 
| Activity: | Cycling | 
| Usage bikesport: | Road Bike | 
| Wheel size: | 28" (29") (622mm) | 
| Tire width: | 0.75", 0.875", 0.90", 1.00" | 
| Inner tube material: | Butyl Rubber | 
| Model year: | 2023 | 
| Collection: | Full year | 
| Weight: | 105g | 
| Manufacturer item code: | 0181781 (42 mm)0181791 (60 mm)0180000 (80 mm) | 
| Manufacturer page: | http://www.conti-fahrradreifen.de |