This configuration does have the tendency to rock end-to-finish slightly as cylinders one and three are near the opposite ends in their strokes. Also, not like an inline-4 mill, the vibes can't be cancelled out due to the odd number of cylinders. The Triumph Road Triple as well as MV https://bike-engine-2-stroke81489.ja-blog.com/35183755/bike-engine-oil-no-further-a-mystery