bike helmet 8-14 Eight Ball Multi-Sport Ages 8-14+ fun and function and offers more than just design Thousand Jr. Kids Helmet -

You get five levels of pedal assist, a Shimano Altus eight-speed drivetrain and a throttle (US only) for those times you just want to sit back and cruise

That sounds small

It pairs a silent, low-maintenance Gates belt with Bafangs clever two-speed automatic rear hub, so theres no shifter clutter or faff: you just pedal, and the hub slips up into a taller ratio once youre rolling, then drops back to an easy gear for junctions and short ramps

Unlocked Off to remove the battery Locked Off (key is removable) - Battery is locked to frame, power is off

Also, a plastic belt does not rust, which is the case with a metal bicycle chain