What you need is a bike in boxes. Bring it into the garage one small piece at a time.
One day down the road he'll say "Hey, when did we get a 3rd bike?"
When he asks about it make accusations of him not paying attention to you because you've been working on it for months. He wont argue.
One day down the road he'll say "Hey, when did we get a 3rd bike?"
When he asks about it make accusations of him not paying attention to you because you've been working on it for months. He wont argue.