TONGSHENG TSDZ2 750 Watt mid drive system. 

The TSDZ2 is a powerful and smooth torque sensor system, the harder you pedal the more the motor assists you. There are 4 levels of assist providing power ranging from + 36% to + 300%! At a mere 8 pounds, this motor puts out a whopping 750 watts max power!

The included VLCD-5 is a large easy to read and use display. Your 4 assist levels as well as your milage/speed are easily accessable as well as highly visible. There is even is a backlite in the display for dark/night riding!

Your TSDZ2 E-Assist includes a machined battery mount as well as a high quality handle bar T from Tcycle out of Portland Oregon. All wires are proffessionaly wire loomed for a clean look.

The battery that comes with your E-Assist kit is 52V that has 19.2ah for an unbelievable run time. We have multiple customers telling us of over 100 miles per charge on the Hairon battery and TSDZ2 motor! Of course hills, assist level ect all play into this. We will be testing the max range in the near future.

The system comes with a 1 year warranty on the motor, controller and battery. This excludes of course, abuse such as underwater activities and other obvious things you should not be doing.

TSDZ2 system 

$2199

(Professionally Installed with a 1 year warranty)