Crank based power vs Wahoo Kicker

Ok so here goes. Is there a way to add the drivetrain losses into your power calculation? For example, My crank based Meter reads a little bit higher( a very small amount). But hey, drivetrain losses are a real thing.

Also, Is there a way to get bikes that I actually own? Like I have a Sworks Tarmac, Allez sprint Disc, and a BMC Time Machine with a Corima Disc & Tri spoke. They are a total pain to get in game, Is there a way to prove that I own them and be able to use them in the game?

Sorry, you are going to have to earn your bikes via Challenges, Mission, Levels and Drops like the rest of us.