<div class='quotetop'>QUOTE(Traverser @ Aug 19 2007, 10:16 PM) [snapback]85702[/snapback]<div class='quotemain'>
With more moving parts(mainly timing chain) I've heard the the opposite. Yeah, you can run a shorter crank, but it has to be stronger (read heavier). Why didn't Honda keep their v-fours when everyone was going to the 1000cc's?
V4's might be slightly heavier, but the mass is more centralized, giving a more neutral C of G but the things that ytou mentioned do make the outright power of a v4 slightly lower.
Inline fours are easier/cheaper to build/maintain because they have a single cylinder bank. for that reason they are much more practical for production bikes. Furthermore an inline four engine can be made shorter, and therefore allow the bike to have a longer swingarm (in respect to overall wheelbase), giving better suspension characteristics.