Looking for performance parts can be confusing, especially when there are so many products to choose from. If your scooter has a Piaggio liquid cooled engine then the following suggestions will assist you in getting the best performance on the road as well as keeping your scooter reliable for everyday use:
PIAGGIO 50cc LIQUID COOLED ENGINES
Variator Kits: These are often overlooked but they're one of the most important components for any scooter tuner. There are lots to choose from but we recommend using either the Polini 6 roller or the Polini 9 roller variator. Also note that the roller weights will need to be changed to match your particular set-up, rider weight etc.
PIAGGIO 50cc LIQUID COOLED ENGINES
For two-stroke Piaggio 50cc liquid cooled engines which are present in most Gilera/Piaggio scooters like the Gilera Runner, Piaggio NRG, Zip SP, Aprilia SR 50 R Carb etc. we recommend the following:
Cylinder kits: Picking the right 70cc kit all depends on how you want your scooter to perform. The Doppler S7R 70cc cylinder is the most powerful kit available for anyone on a budget at just £119.95 and it's quite a revvy kit meaning it’s great for anyone wanting flat out speed, but bear in mind all the power is at the top of the rev range. Alternatively the Athena HP70 is a pretty powerful aluminium cylinder kit but has very punchy power right from the bottom so it's perfect for them standing starts from the lights.
Exhaust Systems: Don’t hold back when buying an exhaust as on a two-stroke scooter it plays a crucial role in releasing potential power from your engine. The Leo Vince TT is the best all round performer for anyone on a budget and works great on 50cc scoots and relatively well on 70cc cylinder kits too. If you're able to stretch your budget to between the £120/£140 mark then go for either the Doppler S3R or the Polini Team 2 as these are revvier pipes that will help you squeeze a few extra bhp out of your scooter. If you want the most power available out of the above mentioned cylinder kits then the Yasuni C16 will give you just that but at a slightly higher price.
Variator Kits: These are often overlooked but they're one of the most important components for any scooter tuner. There are lots to choose from but we recommend using either the Polini 6 roller or the Polini 9 roller variator. Also note that the roller weights will need to be changed to match your particular set-up, rider weight etc.
The above components will make the biggest improvement in speed on your Piaggio/Gilera scooter. The following parts will further improve performance for anyone who wants to stretch their budget:
Carburettors: Piaggio and Gilera scooters made from 2005 onwards already have a 17.5mm carburettor as standard. So we recommend either the YSN 21mm or the Polini 21mm. To get the best set-up use an open type foam filter and alter the jetting to suit.
Gear kits: Providing you have a 70cc kit installed you can fit a gear up kit. Available in a number of percentages they offer an increase in top speed. Top Racing three piece kits come pre-pressed so they can be installed easier. Polini gear kits are top of the line but this comes at a higher price and need to be pressed before fitting.