Mongoose Bicycles To purchase a Mongoose bike on-line you can use our Click and Collect service. Simply enter your publish code at the checkout then select your closest ninety nine Bikes retailer. You will soon receive a name from the store letting you understand when you presumably can pick up your new Mongoose bike fully constructed and tested by our skilled mechanics. Generally the method takes between 2-7 days relying on stock availability. If you’re in your forties now, you probably bear in mind neighbourhood kids cruising the streets on Mongoose’s early BMX bikes. Their Supergoose and California Special were iconic BMXs that launched countless youth to the fun and freedom a bicycle can afford all through the 1980’s.