You can improve Your Hulam with accessories (for an extra fee).  You can have them replaced without a fee or just delivered separately with Hulam.

dtka av_res

Tube 12 “ with an automotive valve (AV). Easy to pump and control the pressure in wheels.

Price - 4,5€ per 1 piece


Rubber grips for the steering. They perform prefect contact with hands.

Price – 6 € per set