Originally Posted by A7racer

I am debating between the Top T Plus 7 and the Keep off XL7....is the bore and stroke the same on both? What else is different from the two? I looked at the specs on both and seems the Top has a bore and stroke of 16.26x 16.80 and the Keep Off at 15.88x17.60mm. Is this a typo or? Just trying to justify the cost difference before I purchase.