I don't understand some terms/brand names in common use here, yet ever so often I conclude a new definition. Plan to return here and add definitions 2010/11.
(Eno) freewheel; ie: fits around shaft/axle to permit idle in one direction and power transfer in the other; a racheted type freewheel capable of handling greater than standard torque
http://www.whiteind.com/singlespeedgearing/freewheels.html
gb; ie: gear box
(Extron) sprocket; ie: a racing go-kart type sproket, sometimes made of composite or kevlar
http://shockwavekarting.com/miva/merchant.mvc?Screen=PROD&Store_Code=SK&Product_Code=SPKT
Nuvinci: fits as rear bike hub, acts as torque converter; a variable speed pwer trans
http://www.fallbrooktech.com/nuvinci.asp see CVT in 1st post above,
Singleator; brand of chain tensioner
http://www.jensonusa.com/store/product/RD707Y01-Surly+Singleator.aspx
Shunt: a low resistance resistor to aid Cycle Anaylst (or other meter) in measuring amps, maybe inside a controller or external inline with batteries.
http://solar.altestore.com/search/?w=shunt&p=Q&ts=v2
HOBO: ie, High Output Brushless Outrunner
Burning issues not understood:
As motor winds get higher, say 6wind(6T) to 10wind(10T), yet the 50volt Castle HV160 caps voltage, what are the performance trade offs?
ie; how does a 3220 10T motor perform with 40-50volts, will it accept extra amps to compensate for low voltage? (48V & 94amp),
ie; is motor heat determined primarily by watts(voltsXamps) or by amps,
ie; if a 10T has >2X the resistance, is it still 90-93% efficient?