Tuning Kit Cylinder + Crankshaft TPR 100 AM6
Description
tPR Factory tuning kit 100cc AM6
From Top Performances' tuning department TPR Factory: 100cc engine kit with cylinder and crankshaft for 50cc motorcycles with Minarelli AM6 engine (Rieju MRT, Beta RR50, Sherco SE-R, Yamaha DT50 and other models). This high-end tuning kit contains a long-stroke crankshaft and a 100cc high-end racing cylinder and was developed for riders looking for maximum performance on the race track.
Attention: For racing use only, not approved for public road use!
The set guarantees 100% compatibility of all components, ensuring easy installation and stable performance even under the most demanding conditions. Ideal for those who want to get the most out of their AM6 engine, with components that can withstand extreme loads.
⇒ TPR Factory long-stroke crankshaft
The TPR Factory crankshaft has a 47 mm stroke and a 98 mm connecting rod, made from high-strength alloy steel. Tungsten inserts ensure perfect balance and efficient power transmission. The forged, reinforced connecting rod guarantees maximum stability even at extreme engine speeds.
Includes small end bearing 14 × 18 × 16.5 mm (for 14 mm piston pin), 2 high-quality crankshaft bearings and oil seals.
⇒ TPR Factory 100cc high-end cylinder kit
The TPR 100cc cylinder was developed for maximum performance. The cylinder head with bright red XL washer jacket is modular, as is usual with high-end cylinders, and ensures sufficient cooling for this 100cc monster.
ATTENTION: For installation it is necessary to modify the original crankcase or use the TPR Factory 100cc crankcase.
To get the best out of the kit, it is recommended to combine it with a matching high-end exhaust and a PWK carburetor with a large diameter (at least 30 mm).
specifications TPR Factory 100cc cylinder kit:
- Material: Aluminum
- Displacement: 100cc
- Bore: 52 mm
- Stroke: 47 mm
- Piston: 1 piston ring
- Modular cylinder head
- Exhaust flange with screws
- Including stud bolts
- Including gasket set
TOP PERFORMANCE TPR Factory
The TPR Factory series from Top Performance includes the high-end products of the Italian tuning brand.
The TPR Factory tuning parts for 50cc scooters and 50cc motorcycles with high performance fall into the high-end racing category, e.g:
- CNC crankcases for scooters
- CNC gearbox cover for 50cc supermotards
- CNC transmission covers for scooters
- Racing clutch for 50cc supermotos
- 4-piston brake caliper
- Scooter exhaust
- Internal rotor ignition
The TPR Factory range is constantly being expanded to satisfy demanding riders and tuning fans looking for maximum quality and performance.

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 Cylinder + Crankshaft TPR 100 AM6 | |
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Article no. | T99AL47AM00/PACK1 |
Weight | 4,09 kg |
Series | TPR Factory |
Brand | Top Performances |
Product type | Engine pack |
Tuning level | High-end |
Displacement | 100cc |
Homologation | No |
Piston pin | 14 mm |
Cylinder material | Aluminium |
Bore | 52 mm |
Stroke | 47 mm |
Conrod length | 98 mm |
Spark plug thread | M14 long |