

This inner tube (4.80/4.00-8) fits perfectly on all outer tires of the same size: 40cm in diameter by 10cm wide (4.80/4.00-8). It will also fit tires with similar dimensions +-2cm.
The convenient TR13 angle valve allows for effortless tire inflation.
For references YT-R3 and YT-R4
Description
This inner tube (4.80/4.00-8) fits perfectly on all outer tires of the same size: 40cm in diameter by 10cm wide (4.80/4.00-8). It will also fit tires with similar dimensions +-2cm.
The convenient TR13 angle valve allows for effortless tire inflation.
For references YT-R3 and YT-R4