Hello again, Thanks for all the advice on bikes and weights. The bike we settled on was a 250cc 89 Ninja. ((This was a bit of a compromise, as we'd have preferred a 200 lb ICE bike instead of a 300 lb one).
Our goal again, is to do an ev-conversion with 50 mph top speed and a 40-50 mile range. Doing this project with a like-minded partner, we've expanded our budget, so Lithium looks like the best bet. We'd like to get your advice on this configuration: Batteries: 72V, 50AH LFP pack w/BMS from Hipower Controller+Motor kit which contains: E-tek-RT Motor, Alltrax AXE 7234 [I know there were some negatives regarding the older version of Etek, but what about this one?] Info about batteries: http://www.chinabatteries.net/www/en/prod.htm weight is 92 lbs, >1000 cycles (>2000 cycles under optimal discharge conditions according to manufacturer.) Some numbers: WH/lb = 39.13 [Compare w/ 16.4 WH/lb for an equivalent SLA system using B&B batteries] approx cost: $2650 for a 24-cell pack, $3500 incl BMS. Cost/KWH = $730 excl BMS Cost/KWH/cycle = $0.73 assuming 1000 cycles Cost/KWH/cycle = $0.37 assuming 2000 cycles [Compare with $0.61 for an equivalent SLA system using B&B batteries, assuming 500 cycles] Total estimated cost (incl bike): $5500. Again sharing the bike with a friend helps ease the bite on the wallet. Thanks, Sri Subramanian Roy Prince
