Bafang BBS03 bottom bracket measurement

[owiig]

Hi,

I`m about to order the Bafang BBS03 1000w motor-kit on e-bay. The kit`s come with 68/100/120mm bottom bracket sizes.
My bike: Cube Reaction GTC Pro 2011 mod.
I cant seem to find the bottom bracket size for mye bike. I know the bottom bracket is bigger than a normal bike, but I dont know how to measure it or find it online.
Does anyone have any tips for this or does anybody know the bracket sized motor I need?

Here is the link to the kit:
(Link Removed - No Longer Exists)

You can see my bike in the pictures below.

Thanks!

best regards,


Ørjan

 

[flymeaway]

I cant seem to find the bottom bracket size for mye bike.

Measure it yourself. It will only take a minute.

Court J.

 

[tomjasz]

Just the pained area.