Ladakh Trip - Should I Choose Bike or Not ?

Hi all,

I am planning to go for a Ladakh Trip this June-July. I really want to do a 7-8 day bike trip there. I am researching some options but i feel a bit unsure about my bike riding capabilities and whether i should really choose a bike trip or a car or a tour package would be the better option.

I own a Classic Bullet but so far I am only restricted to city usage and some mild highway travel. The maximum I have ridden would be around 70 km at a time. I know i can ride 100-200 km but whether i can sustain it physically and mentally for 7-8 days is what I am concerned about.

I don't want to be overconfident and ruin my trip, so I wanted to check how to decide whether one should do a bike trip or gain some experience first?