View Full Version : Compared To Long Ranger?

06-27-2008, 08:33 PM
I like the looks of the Speedster better than the Ranger, & it also looks easier to build, but it doesn't have the kind of range that the Ranger has, does it?


06-27-2008, 10:49 PM
I have been over 40KM on the Speedster, and almost never see a yellow light on my charge indicator. The Ranger was just silly with range - it never stopped.


06-28-2008, 06:03 AM
What would it take to give the Speedster that kind of range? I'm seriously considering it, but range is the most important factor of all. Is it just a matter of more batteries, bigger batteries, or what?

I'm thinking this might be a decent temporary solution, till the day I can (hopefully) eventually "solarize" the KC. At that time, I could move the hub motor from this one, to the KC.

I really do like this one better than the Ranger...


06-28-2008, 09:08 AM
Sir Joey:

While there is some tradeoff between top speed and range (in general if you want to go faster, you can't go as far and vice versa), the major determinant of range will be the total ampere hours in the battery pack. If you want to go farther, you put in more battery power.

It takes a certain fixed amount of watts per mile to propel an electric bicycle at a set speed. Watts, or course are a product of voltage times current, so there can be trade offs between the voltage and the current draw to get the same watts.

Neither the LongRanger, or the Silent Speedster specifies an exact motor or a set of batteries, although Brad tells what he used in the plans. Since both use a hub motor, that kind of nails down the choices to some degree, but even with that you can play with which motor and battery packs you want.

This page will give you some idea of range and speed for various combinations of Crystalyte hub motor model and battery pack.


Of course with electric bicycles that you can pedal, the more you pedal, the farther you can go. It also helps to pedal to get it going, since the maximum current draw is on startup to get it moving. None of that applies to the Silent Speedster or LongRanger, since they don't have pedals. This is one of the reasons I am looking at a motorized Schwinn cruiser for a possible conversion - I want to be able to pedal home, if need be, and I want some exercise too. Hills and the efficiency of the motor also affect the range.

I hope that helps some.

06-28-2008, 12:38 PM
Thanx, TM. Looks like I'm lookin' at a little over 2 large, if I want maximum range! Might be awhile... :(