Tuning Kit Top Performances 86cc cylinder + crankshaft 44mm Yamaha Aerox
incl. tax, plus shipping
Description
Top Performances engine Kit - 86cc cylinder and long-stroke crankshaft
Top Performances responds to the needs of scooter riders with this complete engine pack: 86cc tuning kit for MBK Nitro / Aerox (horizontal Minarelli) at a great price. Known for high-performance Big Bore kits for 50cc motorcycles, Top Performances now brings that expertise to scooters with this convincing 86cc aluminum kit for horizontal Minarelli engines (MBK Nitro, Yamaha Aerox, etc.).
Top Performances 86cc aluminum cylinder
Made from aluminum with a protective Nikasil coating, this cylinder features a 50mm bore and 44mm stroke. It has 6 transfer ports and a bridged exhaust port. The high-compression two-piece cylinder head includes a direct-flow combustion chamber. The large exhaust port delivers strong top-end power. A cooling channel completely surrounds the exhaust area for optimal heat dissipation.
Top Performances Racing Crankshaft
The included reinforced full-circle racing crankshaft features a 44mm stroke, 85mm connecting rod, and 12x15x15mm wrist pin bearing. As expected from a high-end crank, the balance inserts are made of high-quality tungsten.
Power - Top Performances engine kit for Minarelli horizontal
This 86cc Motorpack belongs in the high-end racing category. With the right components — at least a 28mm carburetor, inner rotor ignition, and a high-end racing exhaust — you can achieve 20 to 24 hp. Thanks to the optimized bore/stroke ratio, it offers not just peak power but also more torque and a smoother power curve compared to similar short-stroke setups.
Comes with2 crankshaft bearings (C3 polyamide cage) and oil seals.
Note: Minor engine case modifications are required to fit the 56mm cylinder base and 44mm crankshaft.
Tuning Level: High End racing
We categorize our products into different performance levels Original, Sport, Racing and High End , so that our customers can choose the right parts for their setup. It is really important to combine parts that belong to the same tuning level, this is especially true for cylinders, crankshafts and exhausts.
High End Racing products are exclusively designed for racing and should only be handled by tuning pros with the appropriate technical know-how. High-end racing parts often require modifications or machining of certain elements to accommodate the often larger components (larger crank webs, larger intake, etc.). Whether you stick with 50cc or increase the displacement, high-end racing parts offer much higher performance than the original parts and are the most powerful tuning parts.
Note: To ensure the reliability of the engine, it is important that the parts are compatible and that you do regular maintenance on your two-wheeler.
Aluminium cylinders
Aluminium cylinders are more powerful than cast iron cylinders, but require more regular maintenance and must be combined with different components such as a reinforced crankshaft and a larger carburetor.
How to run in an aluminium cylinder?
Aluminium cylinders should be run in for about 200 kilometers , and you should use a fully synthetic engine oil.
Note: To ensure optimum performance and reliability, it is advisable to measure the squish clearance. Just have a look at our tutorial How to adjust squish clearance.
| Tuning Kit Top Performances 86cc cylinder + crankshaft 44mm Yamaha Aerox | |
|---|---|
| Article no. | T9926560 |
| Weight | 3,84 kg |
| Brand | Top Performances |
| Product type | Engine pack |
| Tuning level | High-end |
| Displacement | 86cc |
| Piston pin | 12 mm |
| Cylinder material | Aluminium |
| Bore | 50 mm |
| Stroke | 44 mm |
| Conrod length | 85 mm |
Spare Parts
- Stage6
Small End Bearing HQ Stage6 silver 12x15x15mm15,00 €In stock - Malossi
Small End Bearing Malossi MHR reinforced 12x15x15mm11,00 €In stockSale - Top Performances
Piston Ring Top Performances TPR 50mm Minarelli / Piaggio LC / AM619,00 €In stockSale - Top Performances
Piston Top Performances TPR d=50mm (A) Minarelli AM6115,00 €In stock - Top PerformancesPiston Top Performances TPR d=50mm (B) Minarelli AM6110,00 €In stockSale
- Top PerformancesPiston Top Performances TPR d=50mm (C) Minarelli AM6106,00 €In stockSale
- Top Performances
Small End Bearing Top Performances 12x15x15mm7,40 €In stock - Top Performances
Top Performances Modular Cylinder Head TPR 86cc Yamaha Aerox / MBK Nitro73,50 €Not in stockRRP80,00 €-8% Discount - Top Performances
Crankshaft Top Performances stroke=44mm / conrod=85mm163,00 €In stockSale - Top Performances
Cylinder Gasket Set Top Performances TPR 77cc / 86cc Minarelli horizontal22,00 €In stock soon - Top Performances
Cylinder Kit Top Performances 86cc aluminium 44mm stroke Minarelli horizontal344,00 €In stock