frk1206
100 mW
- Joined
- Apr 22, 2022
- Messages
- 37
Hello everyone!
After testing existing $10k cargo bikes at the local bike store (Tern, Reise Muller, Radwagon) I've realized they are all underpowered and decided to build my own. I''ve built many bafang BBS02 and BBSHD mid drive bikes with custom battery packs so I know the drill.
I'm thinking of buying a old radwagon and using that as the basis. Ofcourse the easiest thing for me is to go with a middrive setup with either a BBSHD or a Cyc X1 Pro mid drive setup but after having destroyed a couple of derailers and snapping a chain i'm wondering if hubs are better.
I live in a very hilly area (Oakland, CA) and the hills can approach 8-12% grade for a mile or more. Total load on the cargo bike with me + kid + bike would be around 300lbs. Are there any hub motors that would work? I'm assuming the dropout on the radwagon is in line with other bikes at 150-180mm but I haven't been able to measure it yet.
Is there a hub motor that would work? I'm okay with using a heavy motor like the QS 205 alongside a custom 72V battery pack but I'm worried it would overheat or just become a wheelie machine once I load the bike up with all the cargo + kid in the rear. Anybody have any experience with this? I'm mostly going < 20mph - so I feel like the DD motors would be wasteful at that but the geared ones would overheat. Confused!
Thanks!
After testing existing $10k cargo bikes at the local bike store (Tern, Reise Muller, Radwagon) I've realized they are all underpowered and decided to build my own. I''ve built many bafang BBS02 and BBSHD mid drive bikes with custom battery packs so I know the drill.
I'm thinking of buying a old radwagon and using that as the basis. Ofcourse the easiest thing for me is to go with a middrive setup with either a BBSHD or a Cyc X1 Pro mid drive setup but after having destroyed a couple of derailers and snapping a chain i'm wondering if hubs are better.
I live in a very hilly area (Oakland, CA) and the hills can approach 8-12% grade for a mile or more. Total load on the cargo bike with me + kid + bike would be around 300lbs. Are there any hub motors that would work? I'm assuming the dropout on the radwagon is in line with other bikes at 150-180mm but I haven't been able to measure it yet.
Is there a hub motor that would work? I'm okay with using a heavy motor like the QS 205 alongside a custom 72V battery pack but I'm worried it would overheat or just become a wheelie machine once I load the bike up with all the cargo + kid in the rear. Anybody have any experience with this? I'm mostly going < 20mph - so I feel like the DD motors would be wasteful at that but the geared ones would overheat. Confused!
Thanks!