what length BB for Middleburn RS1 cranks?

Got a set of RS2 cranks. When they were on the pace I had to get a hope 122mm bb with lockrings so I could adjust the chainline so that they would clear the chainstay!
 

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I still have my original Middleburn RS1s from when they were called Rhino cranks. 122mm is the correct length, assuming its a 68mm BSA bottom bracket.

Even 118 will give you a bad chain line.
 
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