Bolt in part, off you go! It’s a really good ideal to replace the oil belt while you’re in behind the oil pump. It’s a pretty inexpensive part, which must be replaced periodically (usually every 8-10k).

Please note this particular gear fits all Piaggio Hiper2 Air Cooled models only. Liquid cooled models such as the Aprilia SR50R and Piaggio NRG have a different drive at the back of the gear for the water pump.