Search found 1331 matches

by Warren
Dec 01 2010 9:59am
Forum: E-Bike Non-hub Motor Drives
Topic: Warren's 350 MAC mid-drive (finally) recumbent
Replies: 265
Views: 49250

Re: Crystalyte mid-drive questions

jbond, "One possible solution to this is a small Bafang rear hub motor" Yes. A geared hub motor gets you less weight, and the motor freewheels when you go pedal only...many of the advantages of an Ecospeed style mid-drive, without all of the extra chains and brackets. On the downside, you still get ...
by Warren
Nov 30 2010 10:52pm
Forum: E-Bike Non-hub Motor Drives
Topic: Warren's 350 MAC mid-drive (finally) recumbent
Replies: 265
Views: 49250

Re: Crystalyte mid-drive questions

Rassy, "you probably are happy spinning faster than I am." My preferred cadence is 75-85. "The nice thing about this type of setup (compared to conventional hub motors), when my cadence feels right I know the motor is also in it's efficient zone." Most Crystalyte hub motors spin 360-460 on 48 volts,...
by Warren
Nov 30 2010 6:37pm
Forum: E-Bike Non-hub Motor Drives
Topic: Warren's 350 MAC mid-drive (finally) recumbent
Replies: 265
Views: 49250

Re: Crystalyte mid-drive questions

Rassy, "In 8th gear my trike will only go about 21 MPH, but in 1st gear it will climb a 15 to 20% grade at 6 to 7 MPH with light pedaling and the motor running efficiently (i.e. not lugging and heating up)." So with moderate/heavy pedaling you could hit 25 MPH? That is what I am shooting for with ta...
by Warren
Nov 30 2010 4:57pm
Forum: E-Bike Non-hub Motor Drives
Topic: Warren's 350 MAC mid-drive (finally) recumbent
Replies: 265
Views: 49250

Re: Crystalyte mid-drive

de Vries,

"Those 4x motors with high torque didn't seem enough for me."

It is more than enough for me, as a mid-drive. I am on the low power end of interest in electric bicycles. If I want more power, it will be an Empulse, or something like it. :-)

Warren
by Warren
Nov 30 2010 3:20pm
Forum: E-Bike Non-hub Motor Drives
Topic: Warren's 350 MAC mid-drive (finally) recumbent
Replies: 265
Views: 49250

Warren's 350 MAC mid-drive (finally) recumbent

Folks, This group is an amazing resource. I have been reading this stuff for months. I am an old cyclist. I love long rides by myself...20-100 miles...upright and recumbent. I'm thinking of a highracer with a 48 volt, 20 amp Ping pack. I will pedal all the time...want to average ~20 mph. I really wa...
by Warren
Oct 05 2010 11:49am
Forum: General Discussion
Topic: X-Prize winner sees the light
Replies: 0
Views: 250

X-Prize winner sees the light

Electric light, that is. http://www.readthehook.com/blog/index.php/2010/9/16/kuttner-conquers-olivers-edison2-car-wins-5-million-x-prize Their ethanol powered motors blew up before the end of competition, and the electric winners got almost twice the equivalent mileage. "By Monday morning, September...