The bicycle Det. Green rolls out of the kitchen is made of aluminum, not titanium. Aluminum bicycles many times are polished and would be shiny. Titanium bicycles are a darker gray color.
In 1999, titanium bicycles would cost more than $800. Especially with Shimano XTR components, the highest end parts Shimano made for mountain bikes. Titanium bikes in 1999 would cost over $3000.