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Can you draw this on the picture so I can understand what you mean!!

Yes, like this https://dl.dropboxusercontent.com/u/11003205/Chainline%20measurement.jpg

Rear chainring is 46 mm from the centreline of the bike.........as is the Italian front chainring. Thats why the Bafang chainring was too far out. PS what a big/wide wheel you must have??? 54mm is quite a lot.

Thanx for the explanation, I will check mine. https://dl.dropboxusercontent.com/u/11003205/Chainline measurement.jpg

If I put spacers on the motor unit the chainline gets worse. The Original Bafang chainwheel sticks out too much, is more away from the frame then the rear chainwheel. The Italian chainwheel brings the chain more inward so fits better for my rear chainwheel. On the rear chainwheel there is no...

Before I had the ebike I use to cycle 15-25km a week. Now I do 150-200km a week with pleasure/fun. Even with the home made ebike I have now(PAS in "current" mode) I gained a lot of fitness. I left the trade mill of the fitness school and swapped it for the ebike and am very pleased with it. I...

I have a Nexus 8 hub gear but the original Bafang chainwheel is too far off the optimal chainline.

The more levels the better. I have a C965 display also.

The Xofo guy has been a former Bafang employe so yes, it looks very similar. Taking the risk of not being able to fit the chainring is not a pleasant thing. Just a waist of money. Chainline alignment is too important with these powers.

Thanx, yes the original Bafang chainwheel was awfull for the chainline and gave a lot of grinding noises and broken chainrings/chain. There is sooo much power here:)(900 Watts peak) I am now looking at a Xofo MMT250/500W (with torque sensor)to built but the people at Xofo are a bit too vague...

After using a 250W BBS01 kit I swapped to a 500W kit. Easy if all the parts except the motor stay the same. I modified my Batavus Mamboo to an ebike and it took a lot of finetuning to get it the way I want. The pull and speed are awesome. I use an Italian 42T chainwheel for a perfect chainline...