Apologies if this has already been posted before, but it looks like Bafang are upping the game with a more powerful mid drive kit:
http://em3ev.com/store/index.php?route=product/product&product_id=215
Prepare to break chains quicker, wear out gears faster and shred tyres in minutes
http://em3ev.com/store/index.php?route=product/product&product_id=215
Prepare to break chains quicker, wear out gears faster and shred tyres in minutes
