The kit is SOLD OUT!!!! Nevertheless I offer you make a pre-order to guarantee the reservation of goods, and then your order will be shipped at July 20.
Sorry for delay, I was not ready to this sales boom =)
All you need for increasing the range up to 270% (50-60 km), without speed boosting.
This kit contains of:
Mounted bag - 1 pcs,
10s4p 12500mAh battery - 1 pcs,
Rita adapter - 1 pcs.