Recent Posts

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1
Service & Repair / Headlight and tail light won't turn on
« Last post by fisherwoman123 on Today at 06:34:53 PM »
Tried taking battery off and on. Checked some cable connects. Hmm..??
2
Weirdly, it was the controller.

That is weird.  I'm glad you posted what happened though.  I'm also curious if Rad actually got back to you or if you figured this out yourself.
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Rad Modifications / Re: Tannus install on 20" fat tires.
« Last post by sc00ter on Today at 03:21:27 PM »
20x3.0-4.0 is the size I installed on both the 'Runner and the 'Mini ST. Tannus site has them but their sold out. Rad Power website might have them in-stock. Also try a Pedego dealer if you have one in you general area. My Pedego dealer has a wide range in-stock.
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Rad Modifications / Re: Tannus install on 20" fat tires.
« Last post by KinLL on Today at 02:58:38 PM »
The slightly wider 'Runner tires are a tad harder to install the liners in.

Hi sc00ter,

I'm interested in the Tannus liner. Did you get the 20" x 1.95"-2.5" liner size? Seems like the biggest tyre width size on the Tannus website for 20 inch diameter size tyre.
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Just came across your problem now. Glad you got sorted. Just wondering if Rad sorted it for you or you figured out it yourself?

Sent from my VOG-L09 using Tapatalk

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Rad Modifications / Re: Controller burnout: upgrade planned
« Last post by Altema on Today at 10:44:56 AM »
The Phaserunner arrived, but not the adapter cable for hooking up the display! Fortunately, the Phaserunner does not NEED a display to work as a basic throttle-only controller. So, I built a wiring harness for the motor phase wires and hall sensor lines, mad the connector for power, and a new line for the throttle. This way, I was able to install the new controller, set it up, and do testing. There were several issues, like the throttle wiring colors not even being close, weak off the line acceleration, and a few other configuration nuances, but I was able to resolve those.

The Phaserunner is not a typical sine wave or trapezoidal wave controller, and must be configured and "tuned" for each specific motor. Even after making the necessary wiring connectors and running the autotune program (which only sets a few parameters), there was several hours spent making adjustments and getting the throttle working. I finished my test rides at 2am, then did further adjustments the next day. How is it? Silent and buttery smooth. I powered the bike past my wife in the living room of our house, and she could not even hear the motor. On the road it's silky smoothness is deceiving, and I looked down at the GPS to see it hit 34 mph with a moderate amount of field weakening (think of it as a boost mode).

On the plus side:
1. Small size.
2. High total power and virtually infinite power adjustment.
3. Fine control over acceleration and throttle sensitivity.
4. GPS verified throttle only speed of 28 mph in standard mode, 34mph+ in boost mode.
5. Throttle is constant torque instead of constant voltage, making it easier to control.
6. Opens the door for using 48, 52, 60, and 72 volt batteries with a simple setting change.
7. Top speed with 72 volts and this controller on 20 inch wheels is 43 mph without boost.
8. It's QUIET!

There are downsides though:
1. Controller will need a heatsink to use it's full power.
2. Slight efficiency losses in boost mode.
3. Without the Cycle Analyzer display, there is no pedal assist or cruise control.
4. Even with the Cycle Analyzer display, you still have no automatic brake light.


I may have a group ride in Connecticut this weekend, and I'm fine going with my reliable 35 amp controller. But, if all the cables and parts come in, and I'm able to get it just the way I want, I may do the trip with the Phaserunner installed. The good thing is that, with all the work I put into making custom wiring harnesses, I can swap back to the other controller or even go back to stock with no damage (except my wallet!)

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General Chat / Re: Introduce yourself!
« Last post by Radillac on Today at 10:38:23 AM »
I bought a Rover in Dec and finally crossed the 100 threshold. Now that the temps are warming up I expect to be very active on my ebike. I live happily retired in Tallahassee, Fl.
Welcome to the forum TallyRad.
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General Chat / Re: Introduce yourself!
« Last post by TallyRad on Today at 10:00:15 AM »
I bought a Rover in Dec and finally crossed the 100 threshold. Now that the temps are warming up I expect to be very active on my ebike. I live happily retired in Tallahassee, Fl.
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Service & Repair / Re: Stick rear wheel washer, derailleur side
« Last post by JESimmons on Today at 05:52:13 AM »
Try an actual penetrating oil such as Liquid Wrench rather than WD40.
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General Chat / Re: Melding RP bikes with portable/solar charging systems?
« Last post by vudude on Today at 01:27:18 AM »
You need to wire 4 - 12v solar panels together to = 48v. Solar panel voltage changes a lot depending on Sun exposure, so you need to add a BMS (Battery Management System) to protect the battery from over voltage. Now you can charge your 48v battery from the sun. You can charge a 48v battery with a  12v panel + Inverter but there will be losses converting Direct current (DC) to Alternating current (AC) to  Direct current (DC).   
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