Brake of D3+ [https://dyucycle.com/products/dyu-d3plus-electric-mini-bike]/D3F [https://dyucycle.com/products/dyu-small-electric-bike-d3f]/D2F
Brake of D3+ [https://dyucycle.com/products/dyu-d3plus-electric-mini-bike]/D3F [https://dyucycle.com/products/dyu-small-electric-bike-d3f]/D2F