Planning a Leh/Ladakh Bike Tour

Hi I am planning a long bike ride/ tour with these touring companies to Leh/Ladakh.

Have you done any trip like this? I got leaves approved for 16 days, starting 29th August till 14th Sept.

This is my first time going to Himachal. Which place/circuit is a must to go?

Bike riding experience: Moderate, not highly experienced on these routes.

If you have used these tour management companies like LetsWravel, Ilahi, WanderOn please recommend.

Other thought:

Rent own bike in Delhi/ Leh and do a solo trip.

Thoughts? Thanks.