Quote from: markastuart on January 06, 2025, 05:49:45 PM... I swear I once saw a forum post where one can hold the hand brake and press another button while turning it on to reset. ...

The only thing I can think of like that is described on page 44 of the manual.
If you turn the bike on (key switch) while a break handle is squeezed, you should get an error code of "Brake switch fault (or the brake was applied while turning bike on)", as indicated by PAS LEDs #0 and #2 being illuminated.
I've done that a few times by mistake. I don't recall flashing lights
Your issues seems to have nothing to do with that, so, I dunno.

[edit]
Later, I noticed this, also on page 44:

QuoteError detection
Your RadExpand is equipped with an error detection system integrated into the display and controller (see "Electrical controls and operation" on page 27 for more information). In the rare event of an electrical issue with the bike, you may see a specific combination of lights flash on the Pedal Assistance Level lights on the display. If this happens, we recommend that you cease operation, take a short video of the light(s) flashing if possible, and then go to the
Rad Power Bikes online Help Center (radpowerbikes.ca/help) for more information.

For all 5 lights flashing, it says "Error type: Communication fault"

Hmmm ... +30 Fahrenheit should be well within the limits, according to the manuals.

Does the power go completely off, killing the lights and display, or does it just stop giving power to the motor?

Hi all, I just bought the new updated rad power battery. The bike randomly shuts off completely when I use the new battery. This does not happen if I use my old battery. The weather has been cold here- around 30F, but the old battery works fine. All connections are ok too. Any ideas?

Did you check the pedal assist sensor if it's dirty, misaligned, or broken.

I found these Vee tires (22x3.5) and ordered some today.  I'll update after I get them installed and let you know how they work

https://veetireco.com/catalog-product/huntsman/

Hi Folks
Please see link to latest Vlog - Hope you enjoy

https://youtu.be/Gp7FIG27-t0?si=cv8MnNYCDJpBPZp4

For my part I'll post this last update to finish off this topic. I finally laced up a 24 in rear wheel for my Radwagon 4, and I installed a studded winter tires on the back as well. The actual lacing and wheel building was fairly straightforward.

The studded tire works really well. We just had a pretty big snowstorm here in Helsinki and biking to work was fairly alright. Now we are back above freezing fora few days and then everything is going to freeze to ice again making for slippery conditions.


Unsurprisingly the studded tire has a lot more traction and I feel more comfortable riding to work and running errands.

The new Radwagon 5 has solved this issue by using a more standard wheel size, but if there are any other Radwagon 4 riders in cold climates I can recommend moving to 24in tires. It was somewhat expensive, but everything has a cost.


On a side note I also upgraded to Tektro hydraulic brakes. It made a world of difference to the braking power and also much less fussing with brake adjustment.

I just rolled over the odometer on the bike and with these upgrades I hope to still get many more thousands of kilometers from the bike. If I buy a new cargo bike in the future I will be sure to spend some more upfront on a quality bike such as a Tern.

Have you ever tried any unconventional uses for your Rad Power Bikes, such as turning them into mobile food carts, portable gaming stations, or mobile workstations? Share your creative hacks and modifications!
 

Deep-frying equipment essentials for your kitchen

Hi.  I have a RadExpand 5 Electric Folding Bike and with a full battery the Pedal Assist monitor flashes for about 30 seconds and then the bike turns off.  I hit the power button again it works just fine before it starts flashing again.  I was able to ride 6 miles by doing this over and over again. 

This happened before and I swear I once saw a forum post where one can hold the hand brake and press another button while turning it on to reset.  does this make sense?  any other ideas would be welcome. 

Hello, I had my bike stolen and I had insurance for it and I would like to know if anyone here has insured their bike and had it stolen and got paid by the insurance? I would like to know the time and procedures to get the money. Have you been denied insurance after the bike was stolen? Thanks.