Thought I'd share a few pictures of my grocery basket build. Designed it to fit 2 Earthwise Collapsible Shopping Boxes, 1 Shopping Box and a 30 can RTIC soft cooler, or the Snoozer Lookout Bicycle Dog Carrier.

Yes, the 24" ones that were sent by Rad Power Bikes. He simply installed them without cutting them.

Sorry for replying so late.

I posted this somewhere else on the forum but thought I'd share it here just in case people were reading this thread still.

The Tannus kit for the RW4 comes as a 24" kit with instructions to cut it. My local bike shop said with a little extra effort they were able to use it as is and it fit just fine, no cutting required.

I was able to purchase some tubes from them recently, I think early August is when they sent them to me. Funny thing is I don't need them now because I put in the Tannus Armor liners and they use a different tube size. My local bike shop put in the Tannus liners and said they didn't even have to cut them to make them work. If you want to add the liners then the smaller tubes that go with them are available here: https://amzn.to/314KX1l