Optimized for low-pressure bike tires (Max 30 PSI) - performance tested & calibrated accurate to ANSI B40

Quick-Release: rapidly disconnect the air chucks from the tire valve stem with absolutely zero air loss - completely eliminating any margin for error when precision matters most

Stem: Cinema Martinez 48mm CNC 6061-T6

stainless steel hardware

The Fold Up Extreme is sold with the following standard features:

ROBUSTO Electric Mountain Bike boy bike shorts Optimized for low-pressure bike tiresROBUSTO Electric Bike Features The GOBIKE ROBUSTO is a blast to ride on and off roads. It boasts a powerful 750w rear hub motor, full front and rear suspension, and large 26 x 3 tires. With its five levels of Pedal Assist, power is delivered to the ROBUSTO by simply pedaling or by using the thumb throttle. The upgraded Shimano Altus derailleur delivers smooth shifting through its seven gears. The ROBUSTO is made from high grade aluminum that is