Park Tool CWP-7 Crank Puller for Bafang Ultra?

smorgasbord

Well-Known Member
Region
USA
My Bafang Ultra has hollow splined cranks, so my normal cheapie crank extraction tool doesn't work - the end just goes into the hollow space.
It looks like this (not actual photo):

Screen Shot 2020-04-17 at 4.27.19 AM.png


So, naturally I turn to Calvin of Park Tool.

There's so little surface there to push against, will the CWP-7 with the included fat end really work, or do I need to find a plug to thread into the bottom bracket (inner threads in above photo)? And if the latter, any ideas on how to source?
 
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