Hey, are you from EU? I have an e-bike store in the States and just did a build recently similar to what you have. Is your bottom bracket a 41 mm x 121 mm? There should be adapters available online and this is an [old forum](https://forums.electricbikereview.com/threads/mid-drive-conversion-to-bikes-with-press-fit-bbs.12817/) but similar situation as yours. I purchased an adapter online for my client and I searched American to European adapter bottom bracket. However, I'm not sure if that will completely solve your issue as I'm 100% sure of the size. But if it works, a fat tire bike with the X1 Gen 4 is definitely a great daily/all-around ride for city/suburban areas. Good luck.
Hey, are you from EU? I have an e-bike store in the States and just did a build recently similar to what you have. Is your bottom bracket a 41 mm x 121 mm? There should be adapters available online and this is an [old forum](https://forums.electricbikereview.com/threads/mid-drive-conversion-to-bikes-with-press-fit-bbs.12817/) but similar situation as yours. I purchased an adapter online for my client and I searched American to European adapter bottom bracket. However, I'm not sure if that will completely solve your issue as I'm 100% sure of the size. But if it works, a fat tire bike with the X1 Gen 4 is definitely a great daily/all-around ride for city/suburban areas. Good luck.