If you want to rent a bike for leh ladakh trip you can take it from Manali at INR 1000-1200/perday + INR 2000 to 3000 {security which is refundable}. But when you reach Leh you have to rent again a new bike in Leh because of the conflict between Leh and Manali Associations. So you have to rent again a new bike in Leh with the same rental price.