new Ducati xDiavel

[apex1_imp]

Aren't most V2 and V4s a pain to adjust valve clearances? The only exception that comes to mind are the Moto Guzzis. My understanding is Guzzis can be done while changing diapers.

Some are worse than others. Harleys have hydraulic lifters so they never need adjustment. Guzzis and airhead BMWs are very straightforward. Many bikes have shims under buckets so camshafts must be removed if shims need to be swapped. A pain. The thing about Ducati is their desmodromic valvetrain complicates things. All bikes have intake and exhaust valves opened mechanically, and all but Ducati rely on valve springs to close the valves. Ducati desmo valves are closed mechanically by a separate forked rocker, not by a valve spring, so both the intake and exhaust valves are adjusted by shims. Here is a short video:
https://www.youtube.com/watch?v=ocfIYUc5bpU