The LEKKER Amsterdam commuter series with 7 Speed integrated hub and grip shifter goes along well with a 250W mid drive system. The Amsterdam offers a very comfortable ride with a lot of style. The bike holds well with clean simple lines with very few wires being seen. The satin black with black battery keeps the bike in tune with the original looks but now more than capable of making long commutes easy. The 250W solarbike mid drive with pedal assist and thumb throttle paired with a 36v 11.6Ah tube battery makes for a great ride.