I added a Bafang BBS02B conversion with a 48v 17.5 Ah battery and 44T chain ring to my Cannondale Adventure 400 last August based on a suggestion from my LBS. I had them install it with brake and gear sensors after reading about the potential wear on the drive chain.

I am very satisfied with my conversion, and the motor cutoff during braking and gear changes is seamless.

I also added a new saddle (B17 Imperial), new brake shoes, and a set of Schwalbe Energizer Plus tires.

I am very happy with the results after repurposing my old underutilized bike.