All engine specifications reflect a bore and stroke number.
Aprilia Tuono V4 R
Four stroke, longitudinal 65° V four , DOHC, 4 valves per cylinder
998.9 cc / 60.96 cu in
Bore x Stroke 78 x 52.3 mm Compression Ratio 13.0:1
There are characteristics of an engine that are reflected in the bore x stroke values.
What exactly is bore x stroke?
How do bore x stroke values effect efficiency in an engine?
Why is it so important for engine manufacturers to reflect bore x stroke numbers in their promotion of a vehicle?
Is there something about bore x stroke values that are important to consumers?