Harriet_Porber's recent activity
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Comment on Anyone with DIY motorized bike experience? Considering building one! in ~hobbies
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Comment on Anyone with DIY motorized bike experience? Considering building one! in ~hobbies
Harriet_Porber I hate to break it to you, but the 4 stroke is still going to be loud and annoying. It's literally a weedwacker engine. Can you get an idea of the sound from YouTube videos? They just don't put...I hate to break it to you, but the 4 stroke is still going to be loud and annoying. It's literally a weedwacker engine. Can you get an idea of the sound from YouTube videos? They just don't put much of a muffler on those kits usually.
Also if you're trying to do hills I'm not sure how much torque the 49cc engines have, it might not carry you up hills as much as you'd want.
For what it's worth I put together a 1000w ebike for around $400ish, and it definitely has more torque for hills than a 49cc engine. But that was 7 years ago so take the cost with a grain of salt.
Mine is a 48v 1000w rear hub - if I did it again I'd definitely do front hub instead, it was a little annoying having to fiddle with the rear derailleur. And my 1000w is kind of overkill on flat ground, it can hit like 35-40mph which is just unnecessary. But I think hub motors come in all different varieties of top speed vs torque, I'd rather find a higher torque/lower top speed 500w motor.
It's been on my project list to convert mine to run off 40v Ryobi lawn equipment batteries, 50% because I already bought into that ecosystem. So far I've been running hobby/RC car lipos, which do have the potential to be more dangerous like you said but I haven't had a problem yet and dang are they cheap.