Customization of 'your motorcycle' is a key competitive weapon of Harley Davidson. Go to their website and describe how many different combinations exist. What if your business offered only a single motorcycle, with 2 handle bars, 3 luggage bags, and 4 exhaust pipe configurations - how many combinations would exist?
Currently HD dealers order accessories, like luggage bags, and apply these components to the bike for the customer - it enables the dealer to build some relationship with the customer. If HD decided to perform all of the customization work at their factory - what do you think the pros and cons would be to the HD firm, to the dealers, to the customers?