BuckGup
1 µW
- Joined
- Jun 15, 2020
- Messages
- 3
Hello, I am looking to build my first proper eBike. Last year I built a 1500w eBike with a specialized hard rock as the frame with some random 72v controller I found on eBay. I was able to hit speeds in the 45-50mph which is bit sketch with a mountain bike frame. I have a general idea of what I want but some questions on what's the go to right now on the market.
Speed controller: I'm looking for something that has a manual written in english, I can adjust the throttle curve, and supports regen braking. Looking for a 72v controller and 200A if the motor below will draw in that range.
Motor: I've been looking at the QS 273 50H V3 8Kw motor. I'm trying to aim for speeds around 60mph.
Frame: The bomber clones are nice as they are easy to find now but I hate the look and they are so common. I know someone local who can weld me a frame to my liking so I might go for a more tradition cafe racer type look and diy it.
Front Fork: I'm not sure on the travel for this and if I should go with a dirt bike fork, moped, or downhill mountain bike.
Brakes: Looking for large disk brakes that are hydraulic. On my previous build I had small disk brakes but they would start smoking like crazy on a full stop from max speed. The stopping distance was also terrible and sketchy. Also brakes that support regen. Not sure if this is just controller dependent with micro switches in the handle bars or if I need different calipers on the brakes themselves.
Battery: Ideally I want a range of around 40 miles so I was looking at a 72v 30Ah pack but I'm not sure how realistic that is with a 8kw motor. I'm willing to drop to a 6kw or 5kw motor if I can get speeds around 50mph but the range would lengthen significantly.
Wheels/Tires: I don't know if the QS motor comes prethreaded into rims, I don't think it does, so I'm not sure on the size. A larger tire will give me more speed but be weaker and I'm not sure on the cost difference. I know most are in the 19", 21", and 17" sizes as this is what mopeds and motorcycles use. Which on that note I'd like to use motorcycle or moped rims/tires as bike components are way too sketch at high speeds and now with more weight no way.
Misc. I'd like a windshield and headlight like the ONYX bike has. Not sure what you would search to find this. As well as some brake lights. Also looking for a decent twist throttle with a kill switch and maybe a 3 position rocker switch to select different modes if that's possible with the controller.
Other than that let me know of anything I forgot. The main goal of this build is a safer yet still fast version of my first build. Thanks
Speed controller: I'm looking for something that has a manual written in english, I can adjust the throttle curve, and supports regen braking. Looking for a 72v controller and 200A if the motor below will draw in that range.
Motor: I've been looking at the QS 273 50H V3 8Kw motor. I'm trying to aim for speeds around 60mph.
Frame: The bomber clones are nice as they are easy to find now but I hate the look and they are so common. I know someone local who can weld me a frame to my liking so I might go for a more tradition cafe racer type look and diy it.
Front Fork: I'm not sure on the travel for this and if I should go with a dirt bike fork, moped, or downhill mountain bike.
Brakes: Looking for large disk brakes that are hydraulic. On my previous build I had small disk brakes but they would start smoking like crazy on a full stop from max speed. The stopping distance was also terrible and sketchy. Also brakes that support regen. Not sure if this is just controller dependent with micro switches in the handle bars or if I need different calipers on the brakes themselves.
Battery: Ideally I want a range of around 40 miles so I was looking at a 72v 30Ah pack but I'm not sure how realistic that is with a 8kw motor. I'm willing to drop to a 6kw or 5kw motor if I can get speeds around 50mph but the range would lengthen significantly.
Wheels/Tires: I don't know if the QS motor comes prethreaded into rims, I don't think it does, so I'm not sure on the size. A larger tire will give me more speed but be weaker and I'm not sure on the cost difference. I know most are in the 19", 21", and 17" sizes as this is what mopeds and motorcycles use. Which on that note I'd like to use motorcycle or moped rims/tires as bike components are way too sketch at high speeds and now with more weight no way.
Misc. I'd like a windshield and headlight like the ONYX bike has. Not sure what you would search to find this. As well as some brake lights. Also looking for a decent twist throttle with a kill switch and maybe a 3 position rocker switch to select different modes if that's possible with the controller.
Other than that let me know of anything I forgot. The main goal of this build is a safer yet still fast version of my first build. Thanks