Just purchased the AR 41/62 X DB wheelset which comes standard w 12x142 rear spacing. My older Specialized Diverge requires 12x135 rear spacing.
The endcaps fit tightly, as they should, but once you wiggle off the current pair, they are super easy to replace. Perfect fit for my frame now! So thrilled they worked.
Reynolds Allroads Disc Hub End Caps - 2017+