I took it apart today after viewing a YouTube video I found online. There are 3 planetary nylon gears inside the the motor drives inside a metal gear ring in the hub. Everything looked fine except very dry of grease. I regreased them and reassembled. Just took a ride and although not totally resolving the rumble definitely improved to acceptable. If anyone else needs info I did find the nylon gear assembly on Amazon at very reasonable prices.

They use it at retirement homes to keep men from rolling off their beds.

I agree!  It worked so well for me that I was able to do away with the kickstand on my bike.

Quote from: inoxa on July 21, 2024, 03:13:27 PMYou probably tapped out the motor.  Consider a controller upgrade.  It will help.  Area13 had them in stock this past week for your model.  If they don't try electro bike world. 

For practical reasons I'm really not entertaining any power plant modifications on my bike at this time. But I did look at the upgrade kit at Area13. And my first impression is that the size is a lot bigger than the stock City5+. I like to tinker therefore it is tempting to upgrade but for now I am holding back. Especially the stock display console needs improvement.

At this time I'm perfectly fine with the performance of the bike. The more I ride the more I am discovering the limitations of the bike. A little bit of walking the bike uphill is not a bad thing.

Quote from: Jbator on July 24, 2024, 08:41:45 PMHello, I had my RR6+ serviced by Veloflix as well, they did a great job but after this service I began to have motor power cutting out. I've traced it back to the rear brake lever, when it's unplugged it runs perfectly but when the sensor is connected it faults intermittently, is there a way to adjust this or just replace the brake lever?

It could be the brake sensor or it may be the controller.  The good thing is you can use the bike with the rear brake wiring unplugged.  Most of the braking power is from the front brake and it will cut the motor off when applied. 

Try swapping the front and rear wiring and see if it acts the same.  If it does then it is the controller.  If not then it is the brake level sensor.

Quote from: Collie58 on July 24, 2024, 01:22:06 PMI have a 2018 rad runner. Back tire only will roll frontwards jams tight going backwards. Brakes are good. I suspect bad motor. Not sure how to test. Do not want to use with new controller until I know is good. Do not want to burn up controller again.

Interesting.  Does it do this with the rear brakes unplugged? 

Quote from: JimInPT on January 25, 2024, 11:11:28 AMThe Expand Contract still seems very overpriced, considering how much they stripped off of the MiniST 2 (which as I recall had sold as low as about $1,100 and has more features) to create it.

Every now and then I'm tempted to hug my 2021 MiniST 2 in appreciation for having it.  It's perfect for me and I've seen nothing better from Rad since.

I agree Jim,   Nothing RAD is doing inspires me to change from my 2021 Mini ...  Lectic has now included at no extra $ Belt drive which is a significant plus and something I would really consider.

Hello, I had my RR6+ serviced by Veloflix as well, they did a great job but after this service I began to have motor power cutting out. I've traced it back to the rear brake lever, when it's unplugged it runs perfectly but when the sensor is connected it faults intermittently, is there a way to adjust this or just replace the brake lever?

Sale is still on as of 7/24 @ 3:30 pm Pacific Mountain time for the RadRunner 2. $1,199.00. Free delivery

I have a 2018 rad runner. Back tire only will roll frontwards jams tight going backwards. Brakes are good. I suspect bad motor. Not sure how to test. Do not want to use with new controller until I know is good. Do not want to burn up controller again.