Press Fit eccentric bottom bracket adapter installation

[tjmac44]

I am going to be doing a mid-motor conversion on a Beach Cruiser. It will require eccentric press fit adapter like the following:

https://www.johnnynerdout.com/product-page/ashtabula-bottom-bracket-adapter

My question/concern is how to I install these and keep the holes lined up when pressing them into the BB shell?

 

[ELY_M]

have you installed the kit yet? I have bmx frames with American BB and wanted to get bafang kit. but I need to know and get adapters needed.

 

[Chalo]

Use a bottom bracket/headset press. To get them clocked in agreement, stack them outside to outside and use a scribe or a Sharpie to put a matched reference mark on both of them, then align the marks before you press. It's not a high precision job, so close enough is close enough.

Are there gears on your beach cruiser? If not, you're many times better off using a hub motor. Frankly, even a geared beach cruiser is a better candidate for a hub motor if you're not doing something counterintuitive like riding a beach cruiser in mountains.