After two weeks, I finally got the new tube in the mail, put it on last night, and on my second use today (just a few blocks) the back tire popped off and the tube exploded. No idea what's wrong with it, but I'm started a return for the whole bike now.

Quote from: Eric7 on May 31, 2022, 03:46:43 PM
I am a Rad fan, don't own the Rad Wagon, but this is something of concern to me.

Does this means that if Rad disappears tomorrow, all the RadWagons will be obsolete for lack of inner tubes and tires.  Once again, I am a Rad fan and I have no wish for anything bad happening to Rad.  I am concerned that this thread seem to indicate that there is only one supplier in the whole world for tires and tubes.  And tires and tubes are rapidly consumed items.

Vee is the only manufacturer of the tires, and they're only available through Rad. Vee also made the tubes that came on my RW4, but then the replacement tube I just got (which was delayed in shipping by week, so I know they just got them) was made by another company (started with an M, but can't remember now), but they're also only available through Rad.

So... yeah, it's a huge risk, but there are hopefully enough RW4s out there now that someone would continue to sell them at some (likely high) price.

I've considered the same thing and would be very surprised if this would work in a safe way. The 22x3 custom tire they've made is massive compared to the 22x2.1-2.4 BMX tube i've seen (I've never seen that size tire in person). Like, almost double the weight.

I got the 22 x 2.1-2.4 BMX tubes, and compared them against the 22 x 3 rad tubes. The BMX one is much smaller (more towards 2.1 than 2.4) and the rubber is about half as thick.  Definitely not putting them on the bike. Still waiting for my tube order from last week to ship -- rad support said it should be "early this week" -- if that's the case, I wish they wouldn't advertise on their website that it's going to ship in 2 business days!

Quote from: NaturallyBikes on May 21, 2022, 04:26:53 AM
I'm shocked by the recent level of swapping component brands (though I recall seeing this clause in the fine print). Rad is acting like a company on the verge of going under, these days...or a company squeezed by new management to wring bigger profits out of each sale. Not sure which is worse.

I noticed after I bought on the lengthy spec page that is says "To ensure uninterrupted shipping, some parts may differ from those listed. Rest assured, our engineers rigorously test each component to guarantee quality and compatibility".

Quote from: ericwn on May 21, 2022, 05:20:37 AM
Any recommendation for a good 22 x 1.75 tube? Luckily my flat was in the front tire as changing the rear with a mounted Conestoga is a bit tricky.

I'm going to try the Dan's Comp brand (or likely, what they just sell as the house brand) in the 2.1-2.4. https://www.danscomp.com

WTP also has a smaller 1.75 tube:
https://www.danscomp.com/we-the-people-22-bmx-inner-tube-schrader-1.75-2.125-30001010218/p1192016?v=729869

I think the S&M brand also has a 1.75 tube (Dan's seems to only have 2.1-2.4), and they're at least more expensive that most tubes, so I'd hope they're actually better.

There's also these $34 (!) tubes form Tubolite https://www.danscomp.com/tubolito-tubo-22-24-bmx-inner-tube-schrader-1.5-2.5-33000098/p1421775?v=1329365

Quote from: Radio Runner on May 20, 2022, 03:29:23 PM
I?m surprised to hear there?s another 22? tire available from someone other than Rad. Who?s making it?

Apparently it's an (uncommon) BMX size. There are a couple options in 2.1-2.4 width (and more in narrower), which might be close enough to work in a 3" tire:

S&M brand: https://www.danscomp.com/s-m-22-inner-tube-schrader-2.1-2.4-05-tube-22/p1307312?v=1225413
Dan's house brand: https://www.danscomp.com/dans-comp-deluxe-22-bmx-inner-tube-schrader-2.1-2.4-32mm-446006x1x2125/p1307320?v=1080559

I got my RadWagon 4 last week, and a few of the components are different than listed in the website specs.  The Rad website lists the RadWagon 4 with Tektro Aries calipers and Tektro rotors and no brand on the brake levers, whereas this one shipped with all "Radius" branded brakes. From what I can tell, this is an OEM pseudo-brand, and seems to be a significant step down from what was already a marginal braking system (e.g., the only cargo bike to come with mechanic disc rather than hydraulic).

Likewise, the shifter and derailleur is spec'ed as being Shimano, but ships with the Shimano-compatible Microshift Mezzo kit. Probably not a whole lot of difference there, but it does seem bad to me that they're still listing a well-known brand name but not shipping with it.

Also, I ordered a new tube on Tuesday after accidentally over-inflating and blowing up my rear one, and it still hasn't shipped as of Friday afternoon, even though the site still advertises 2 business days -- I imagine that they're having some supply chain issues, since there's only one supplier of them. The custom sized wheels for the RW4 was probably by biggest hesitancy in getting one, and now... I've also ordered a 22"x2.1-2.4 BMX tire to try out if the Rad ones don't come, and will report back on how that goes.