They come in two physical sizes and were amazingly light.
The stock battery for the SD is a Yuasa YTZ14S and weighs 3.9 kilos
the same 14 AH Li-Fe (not Ion) weighs an astounding 830 grams!!
For the race bikes we moved the battery to the tail and dropped down to a YTZ7S which weighs 2.1 kilos.
The Li-Fe weighs 560 grams!!!
This is huge when it comes to weight up that high. (Think about how much we spent to lose the catalytic converter!)
Seems promising.
The cost is about the same as the Yuasa.
Tell them you heard it here and maybe we will get a deal?
http://www.shoraipower.com/default.aspx
