Bafang Motor Wont Fit Bottom Bracket

I had a problem getting a Bafang BBSHD to fit in my Trek Marlin 7 2021 bike bottom bracket. I discovered my bottom bracket is shaped like an hour glass. So to fix this I order a 33mm hole saw, and drilled away once I got it.

I earn commission if any item is bought using the links below. That said I do give unbiased reviews of them given I had to use my own money to obtain them.

TOOLS
🛒33mm Hole Saw: https://amzn.to/3DBclUd

1000w BBSHD Kit (The one I got)
🛒Amazon https://amzn.to/3FhVmsF
🛒Aliexpress https://s.click.aliexpress.com/e/_DdJKFMP

750w BBS02 Kit
🛒Amazon https://amzn.to/3f1v3Mm
🛒Aliexpress https://s.click.aliexpress.com/e/_DlVYx1D

500w Kit
🛒Amazon https://amzn.to/3ssMY1J
🛒Aliexpress https://s.click.aliexpress.com/e/_Dlsh9GR

Shift Sensor: https://amzn.to/3Whm9eH

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#bafang #erictennant #ebike