The following information has been gathered by me over years of following motorcycles. In case of any incorrect information, please correct me/add to my knowledge..
The basic function of a motorcycle frame is somewhat similar to that of the skeleton in the human body, i.e. to hold together the different parts in one rigid structure.
One of the major benefits (for a motorcycle enthusiast) of using an advanced frame design lies in the sporty handling characteristics of the bike. A well designed frame can add to the joy of riding a motorcycle as the bike would feel more stable, effortless, confident around corners, in straight lines and while braking.
There are a variety of motorcycles frame designs out there. Each having its own Advantage (for the manufacturer) and its own Benefits (for the biker/rider). Posted below are some different types of motorcycle frame designs, their description, advantages and benefits along with the list of current Indian motorcycle models which features these frames.
1. Backbone Frame: The Hero Honda CD100 series of bikes of yore used to feature a “Backbone” frame.