I learnt that for Smart Trainer, the user is unable to select the bike brands, types and wheels etc, to appear on screen. This only applies for classic trainer users. This is such a shame. It would be so cool to select your own bike brands and wheels etc. Like what I saw online for other Zwift users.
Hey Tony - that’s not the case. The way every Zwifter earns new virtual gear is the same - by riding to earn experience points and leveling up. Occasionally you can do a Mission or special event like an eFondo to earn other goodies.
Happy hunting 
Thanks Scott! I am new to Zwift, that was what the Zwift team informed me when I asked them.