Delhi to Spiti

I’m planning a bike trip from Delhi to Spiti from December 28, 2024, to January 5, 2025. I’d appreciate it if you could share your itineraries and suggestions for a safe and successful journey.

I own a Hunter 350, and my friend rides an MT 15 V2. Are these bikes suitable for the trip, or should we consider renting others? Also, are the dates appropriate for this route?

Thank you in advance for your help!