I made one and hahahaha watch for falling parts is so true.  In doing maintenance, trouble shooting and mods near to loose screws, bolt and the like are the norm on the two Rads I have experience with.  For instance the back axle bolt came off super easy and the bottom bracket was also super easy to unscrew as well as the screws holding the battery, controller in the frame.   I went through the whole bike giving a light lighten after finding so many loose or just barely tightened enough bolts and screws.  They are build in China.   Now,,, with that said it is important to keep in mind that non professional mechanics have a tendency to over tighten, I did,  so try not to do that.  Sourcing that locking washer: Few years back, I saw some on the Walmart site but ended making my own.  I lost one on an  old peddle bike and it was surprising easy to put a washer in my vice  grip and hand saw two places enough to bend it in so  it will  fit in the grove on the frame.  Would suck to have your rear wheel fall off.

The bike is sketchy because the whole thing wobbles. The handle bars really want to wobble back and forth at all speeds.  Slow speeds are the worst, especially when turning slowing.  Feels like I am riding a writhing snake with MS.   The faster I go it smooths out some but sill if I take my hands off the handle bars it starts.  Really sucks not to trust the bike.   I commute every day and and since they sent me this replacement bike it has been getting worst.  I figured it was something loose but cant find anything nor could the local bike mechanic.  The bike is set up with some mods.  I bought the  front and rear racks. On the rear I have an additional 20Ah battery.   I'm thinking Rad replaced my first bike with a reconditioned bike that has a bent frame.  Any ideas??

I have the same problem.  Turns on for a few seconds with power then off.  I unplugged all the wires on the trail that I could  but the problem still exist.   Guess I'll try at home in a more methodical method.   Any other ideas?

My battery stopped charging too.  Was difficult to talk to RAD.  3 weeks or so for them to send me a battery.  Was a pain dealing with them.

Thank you for the info.  Waiting to the battery to rest after use is  new,   

Can we attach a Y connection to the headlight power cord to power another light?

I am wanting a bit more light at times.   The thought of not having another battery to charge is appealing.

Does anyone know the type of cable attachment to use?

I did do a search  but didn't find anything.

waiting on mine tooooooooooooooooooooo

I hope I didn't buy  the wrong one.   It's on it way from Walmart.  I'll post up when it arrives.   

I just bought an Allpowers folding 100watt folding panel and a Elejoy Meterk 400W Step-up MPPT Real-time Tracking Function LED Display Solar Power Supplys Battery Recharging Controller 24~85.  Hope it works.

What do ya'll think?

Say about $300 for kit, hopefully less. I think from my very limited knowledge base will give ~1+amps for charging.

A Rockpal 100w foldable case is 14x20x2 inches , 9.5 lbs and uses durable and 23%effecent Sunpower solar cells.https://www.rockpals.com/products/rockpower-100watt-solar-panel
A controller which is yet to be chosen can be just a few ounces. 

So, lets just say ,10lbs of solar charging could get 1amp.  I suppose it would take 2 days to fully charge the battery since in the US we get about 5 hrs of full sun a day. 

My thoughts are to increase my range for day rides and overnight off grid fun.   A specific example is  there are a few great fishing /cool spots that are about 8-15 miles off any motorized road.  These paths are gravel or single track.  When I get to the destination of fishing, etc... set up the panels and get an extra bit of charge.

What do you think?

Also, I'm not sure if I could open just one of the panels and put on the back rack to get a 25 watt panel collecting while riding?   I have read something about if part of a panel is shaded the entire panel drops to the shaded (lowest producing) level of energy production.  I not sure if that is all panels or just a type.  Does anyone know?

I want to add solar too.  thinking about portable solar panels and a light controller instead of bringing the bigger 110 charger from Rad and the heavy power station.

Hey it is heavy.  I am thinking about just getting a motorcycle hitch rack that has a ramp you could just roll it up.   They are made for "light" dirt bikes.  Just an idea. 4 ya

I have a 6plus on order.  I was thinking about modifying a trailer hitch attached  2x4  screen flat platform I carry a big cooler on.  Has anyone else do that?

I got on on order.  Will post up what I can.