E-ing a Mongoose Fireball

General Discussion about electric bicycles.
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mongrol   1 mW

1 mW
Posts: 10
Joined: Apr 26 2020 1:37am

E-ing a Mongoose Fireball

Post by mongrol » Apr 26 2020 1:41am

Hi Folks,
I have a Mongoose Fireball as a donor bike for a project build and have a question about fitting a BBSHD. The bottom bracket has a chain guide mount welded around the chainring side. I assume I need to grind this puppy off in order for the Bafang to fit?

https://photos.app.goo.gl/g2MiohhJD22A9w8VA

Image

Electric Earth   100 W

100 W
Posts: 105
Joined: Nov 11 2018 8:02pm

Re: E-ing a Mongoose Fireball

Post by Electric Earth » Apr 26 2020 3:00am

Is that a mount for an e-type front drailer, or just a chain guide?

mongrol   1 mW

1 mW
Posts: 10
Joined: Apr 26 2020 1:37am

Re: E-ing a Mongoose Fireball

Post by mongrol » Apr 26 2020 3:18am

Just a chain guide. There’s no front gears on it.

mongrol   1 mW

1 mW
Posts: 10
Joined: Apr 26 2020 1:37am

Re: E-ing a Mongoose Fireball

Post by mongrol » Apr 30 2020 9:42pm

Since searching the internet is utterly broken these days I'm having trouble figuring out how to get 20 inch wheels on this thing. BMX wheels have a different axle size and some have a threaded freewheel. Axle width obviously isn't long enough for a MTB frame so are the hub's compatible in that I can swap my axle's over in order to fit my 8 speed cassette? Or am I better off sourcing some 20 inch folding bike wheels that have a cassette support built in. These seem very hard to get from anywhere other than china/ebay.

Note I'm very aware of the impacts of a 20inch on this frame (gear ratio, torque, clearance height etc).

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