Race 28 Supersonic 700C tube by Continental - presta valve

18/25 - 622
13/25 - 630 

This inner tube fits ETRTO tyre sizes as shown below:

18-622 - 700 x 18C - 28 x 3/4
20-622 - 700 x 20C - 28 x 3/4
22-622 - 700 x 22C - 28 x 7/8
23-622 - 700 x 23C - 28 x 7/8
25-622 - 700 x 25C - 28 x 1.00
22-630 - 27 x 3/4
25-630 - 27 x 1.00 

Valve length: 42 mm

Weight: 50g

Made in Taiwan

About Continental :

Continental are a German company founded way back in 1871, specialising in rubber goods (tyres, inner tubes,  hoses and even the first airship!)

One of the sponsors of the 2014 FIFA world cup to be held in Brasil

Related tags: Race Inner Tube Presta 20-622 18-622 22-622 23-622 25-622 22-630 25-630 Continental