Panaracer R'Air Air Flex Inner Tube 超輕量內胎, 700X23C-28C, 法咀FV, 60mm
Lite weight, Supple and Flexible Racing tube
The R'Air tube gives you all the ride advantage of latex with all the functionality of butyl. Patch it with a regular butyl patch kit. Try a set on you bicycle to understand why the feel and ride of latex rules.