whats the difference?

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no its a "138" really 127 but yeh its a better engine
also mono swinger better forks diff frame and diff exhaust pipe
 
Hi Trashthumpy, the engine in the X6R isn't start in any gear whereas the X7R is. The engine in the X7R has more scope for mods etc. The X6R is stil a great little motor it just depends what you want to do with them. Hope that helps you
 
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