I think this may be like what you're looking for, but you probably don't need this many.

https://www.amazon.com/Replacement-Waterroof-Threaded-Connector-Lsgoodcare/dp/B07WNTFMCB/ref=sr_1_10?crid=3NU67QIXCT8TT&dib=eyJ2IjoiMSJ9.2Jc261NfTlThWP_KZhZi6b4pREUfU2AS7wOgzMxLHDyxHKusdZcsXLT7ZzrojDAgkoN2NC32ti1MKzSAVu9l0UouA4EDPXnytByxfsoGxKtDZ3BatFDM-oBPeYA2cj6zF6RQ-vjGIndrpYK7ps2o8pySjA1mjNNZyKHnAmwQ86EkNuvhH2zLcYGuOjyBqwJyqaSXdakacJSkEJdjqrY9uOYwlOerhd_Ff7OWIVvKDZs.jbotmHLWTVs9IViImIcNxH4VVUAxPbdcF2KG0rAzCfU&dib_tag=se&keywords=5.5+x+2.1+MM+connector+cover&qid=1740066104&sprefix=5.5+x+2.1+mm+connector+cover%2Caps%2C159&sr=8-10

https://www.amazon.com/YPBEW-Waterproof-Wholesale-5-5x2-5-Protective/dp/B0D1YG8RT8/ref=pd_vtp_strm_d_sccl_2_5/138-3048672-5893067?pd_rd_w=p3KOq&content-id=amzn1.sym.8c8432aa-1bf0-4437-b5fa-12091a348861&pf_rd_p=8c8432aa-1bf0-4437-b5fa-12091a348861&pf_rd_r=01MTC4P8M7FK142P1XDK&pd_rd_wg=CCFIU&pd_rd_r=8d27c087-4adb-40cf-acb0-79b4067c6cf1&pd_rd_i=B0D1YG8RT8&th=1

https://www.amazon.com/GINTOOYUN-Dustproof-Silicone-Protector-Ethernet/dp/B09WGWRK6Y/ref=pd_vtp_strm_d_sccl_2_3/138-3048672-5893067?pd_rd_w=p3KOq&content-id=amzn1.sym.8c8432aa-1bf0-4437-b5fa-12091a348861&pf_rd_p=8c8432aa-1bf0-4437-b5fa-12091a348861&pf_rd_r=01MTC4P8M7FK142P1XDK&pd_rd_wg=CCFIU&pd_rd_r=8d27c087-4adb-40cf-acb0-79b4067c6cf1&pd_rd_i=B09WGWRK6Y&psc=1

I've used this for a lot of stuff I've mounted to my handlebars. 

https://www.amazon.com/dp/B07WR1WG72?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_4&th=1

I agree and feel the same way. I wonder though if this is what Ryan had to do to keep funding this free site/service?

Has anyone used a Burley Coho XC with a RadRover? If so, what did you need to do to connect it?

I used this on my Rover 5 to raise them and also move them back closer to me so I could sit more upright. I put it on backward compared to what most people do so the neck points back at me instead of forward.

https://amzn.to/3YAcEu6

I use this one on my 2020 Rover 5 to raise them and move them closer to me.

https://amzn.to/3wsJHoV

There is another option - CO₂


This is what I carry.


https://www.trekbikes.com/us/en_US/equipment/bike-accessories/bike-pumps-accessories/bike-pumps/bontrager-pro-flat-pack/p/21794/?colorCode=black


There's many others similar to this one on Amazon at a much lower cost. I believe there's a Pro Bike Tool one that has good reviews and is only about $17 for just the inflator and you just buy the cartridges separately. I bought this one at Trek because I wanted it right then and their store is less than a mile from my house. I used a mini hand pump before I got this.


I think if I was going to buy an electric one now, I would probably go with something like this because it's small/lightweight.

https://amzn.to/4dG2EVL

One of the best purchases I have made for my Rover 5 is this dropper seat post. When I ride, I like to sit up really high. With the seat up that high, I can't touch the ground with both feet while I'm in the seat. With this dropper seat post, I can hit the thumb lever when I'm coming to a stop the lower the seat all the way down. Then when I take off again, I can hit the thumb lever again without all of my weight on the seat and it will raise up to whatever height I choose. I also find that I can ride farther comfortably by adjusting the height occasionally while I ride. It's not cheap, but out of the thousands of dollars I've spent on various upgrades, this is the one I feel gave me the most for the money.

https://amzn.to/3K4sZPH

I would go with the larger one if it was me. I go on a lot of long rides though where I can end up going through even 3 or 4 batteries. On my long rides I'm going for several days and have my trailer on my bike with clothes, batteries, food, etc. that add up in weight. On these trips, my 14AH batteries get me about 18 to 20 miles each on PAS level 2. I have about 80lbs. of extra weight and sometimes go up to 70 miles in a day. If you don't go on longer rides and don't have a lot of weight on your bike, the smaller one may be fine.

I have a Lectric Trike that I was having trouble folding well with the front basket on. I bought these bolts to attach it with so I could take it off easily without any tools.  It only has 4 bolts, so it's pretty quick and easy to remove with these. It only takes a minute. Not sure if these bolts are the same size as the bolts on the Rad, but they have many sizes available.

https://amzn.to/4bFsNSN

I didn't notice any difference other than it took about twice as long for each bar to drop off. 

Another option might be to use Energizer Ultimate Lithium AAA batteries. They're more expensive initially than regular alkaline AA batteries, but I've found that they typically last 4 to 8 times longer. Something like this.

https://amzn.to/44Iy7Cs

It lets you connect both batteries and drains them both at the same time. It's not where it uses one fully and then switches to the other. It uses the both until they are both used up.

That seems correct. You will want an XT60 connector coming from the battery's mounting cradle to connect to the power combiner.

Correct. You can use any batteries (and mount/wiring). You just need the correct cables/adapters to match the battery to the combiner.