Rad Power Bikes Owners Forum

Discussions by Rad Model => RadMini => Topic started by: rutrowlb on August 13, 2021, 09:18:40 AM

Title: Radmin 4 controller wheel sie
Post by: rutrowlb on August 13, 2021, 09:18:40 AM
I was changing the setup on my controller it messed up the wheel size. What is a standard rad Mini 4 shipped for the factory wheel size. I looked around and it listed a 22in will diameter. This option does not exist on the controller setup I have the standard 20 x 3 tires
Title: Re: Radmin 4 controller wheel sie
Post by: Tony on August 13, 2021, 10:00:49 AM
I also did this .  Rad said it should be 22 to account for tire size on a 20 inch wheel.
Title: Re: Radmin 4 controller wheel sie
Post by: rutrowlb on August 13, 2021, 11:59:58 AM
Quote from: Tony on August 13, 2021, 10:00:49 AM
I also did this .  Rad said it should be 22 to account for tire size on a 20 inch wheel.

The controller has no 22 option 20, 21 then jumps to 24 on the radmini 4,  any ideas
Seems strange that rad recommendation can't be programed

I just took a tape measure to my wheel and it is 22 inches, so why can't it be programmed
Title: Re: Radmin 4 controller wheel sie
Post by: RadJohn on August 13, 2021, 03:28:24 PM
Quote from: rutrowlb on August 13, 2021, 11:59:58 AM...The controller has no 22 option 20, 21 then jumps to 24 on the radmini 4,  any ideas...

Strange indeed!

My 2020 RadMini 4 was delivered in late June 2020 and has the following selection choices: 16 in, 18 in, 20 in, 22 in, 24 in, 26 in, 700C, 28 in

It came from the factory set to 22 inches and that has always worked for me. With the OEM 20 x 3.3" K-Rad tires, my Rad Display mileage usually agrees with my Garmin GPS units within 1 mile on a ~100 mile trip (somewhat dependent on how twisty the route is, but I don't think it has ever been more than ~2.5 miles different), close enough for me.

I'd contact Rad and ask them what's going on (if they even know), I'd love to hear their answer.
Title: Re: Radmin 4 controller wheel sie
Post by: Tony on August 13, 2021, 04:28:06 PM
Well I don't use the standard controller anymore , but when I did Rad told me to set it to 22
Title: Re: Radmin 4 controller wheel sie
Post by: rutrowlb on August 13, 2021, 04:52:35 PM
Quote from: Tony on August 13, 2021, 04:28:06 PM
Well I don't use the standard controller anymore , but when I did Rad told me to set it to 22


If only my controller had a 22-inch option
Title: Re: Radmin 4 controller wheel sie
Post by: pehayes on August 14, 2021, 09:21:15 AM
Just received a new RadMini 4 early August.  It came pre-set at 21.  There is no 22 option.  The actual OD of the inflated tire is close to 22.  The closest controller option is 21.  I've experimented to see if I could trick more speed.  Seems best at the default 21.  Used a GPS app for speed verification.  Seemed to peg out max speed the same regardless of my wheel choices.

Patrick Hayes
Fremont CA
Title: Re: Radmin 4 controller wheel sie
Post by: rutrowlb on August 14, 2021, 09:29:42 AM
Quote from: pehayes on August 14, 2021, 09:21:15 AM
Just received a new RadMini 4 early August.  It came pre-set at 21.  There is no 22 option.  The actual OD of the inflated tire is close to 22.  The closest controller option is 21.  I've experimented to see if I could trick more speed.  Seems best at the default 21.  Used a GPS app for speed verification.  Seemed to peg out max speed the same regardless of my wheel choices.

Patrick Hayes
Fremont CA
Thanks for the info exactly what I was looking for I do have a question in the rad why they don't account for the real wheel size
Title: Re: Radmin 4 controller wheel size odometer error
Post by: rutrowlb on August 15, 2021, 04:17:58 PM
Since the rad Mini come stock with 22 in diameter tires the controller Best Choice is 21 in. I verified the odometer with my GPS. to correct your mileage multiply your display X 0.95
Title: Re: Radmin 4 controller wheel sie
Post by: TheRealDlo on October 13, 2021, 11:23:27 AM
Quote from: pehayes on August 14, 2021, 09:21:15 AM
Just received a new RadMini 4 early August.  It came pre-set at 21.  There is no 22 option.  The actual OD of the inflated tire is close to 22.  The closest controller option is 21.  I've experimented to see if I could trick more speed.  Seems best at the default 21.  Used a GPS app for speed verification.  Seemed to peg out max speed the same regardless of my wheel choices.

Patrick Hayes
Fremont CA

100% THIS.

I got my Rad Mini 4 Oct 5th and 21 is where it is set to