Description
Stage6 Sport Pro MK2 70cc cylinder with 12mm piston pin for China 2-stroke AC engines.
The cylinder was completely redesigned by Stage6. 6 transfers, instead of 5, ensure optimum cylinder filling. The oval exhaust was retained, but also optimised. The appearance is based on the pentagonal shape of the R/T cylinders. The cylinder head is a one-piece unit with fused exhaust channels for better heat dissipation. The piston is a replica of the R/T piston, with a domed piston crown and 0.8mm thick piston ring to optimise performance and improve thermal stability.
The Sport Pro MK2 cylinder delivers 2 to 3 hp more power than the MK1, between 17-19 hp, without additional modifications and in combination with the corresponding components.
It is recommended to fit this cylinder with a reinforced crankshaft, and a minimum 21mm carburettor.
The kit includes:
- Aluminium cylinder, bore 47.6mm.
- 1 segment piston with 12mm piston pin.
- One-piece cylinder head.
- Set of gaskets.
Attention: The Squish recommended by the manufacturer should be between 0.75 and 0.85. During running-in it is recommended to run with 1:33 mixture to improve robustness and service life.
Additional Information
| SKU: | S6-7419502 |
| Stroke: | 2T |
| Refrigeration: | AC |
| Material: | Aluminium |
| Displacement: | 70cc |
| Cylinder diameter: | 47,6mm |
| Piston Ring: | 1 |
| Includes cylinder head?: | Yes |
| Cylinder Head: | Normal (1 piece) |
| Original pin?: | No |
| Pin Measure: | 12mm |
| Original Course?: | Yes |
| Course: | Original |
| Original Connecting Rod?: | No |
| Connecting Rod: | 80mm |
| Thread: | No |
Product Questions
Good for
| Make | Model |
|---|---|
| Make | Model |
| Adly | Cat 50 |
| Adly | Super Sonic 50 |
| Adly | Thunderbike 50 AC |
| Adly | Blizzard GTA 50 |
| Adly | Jet 50 |
| Baotian | BT49QT-28B (2-tiempos) |
| Benelli | QuattronoveX 50 llanta 10 |
| Benelli | QuattronoveX 50 llanta 12 |
| Benelli | 491 AC (antes 2002) - Minarelli horiz. |
| CPI | Formular R 50 |
| CPI | Popcorn 50c.c. AC (> 2003/Bulón 12mm) - Min. horiz |
| CPI | Bravo 50 |
| CPI | Oliver 50c.c. AC (> 2003/Bulón 12mm) - Min.horiz |
| CPI | Hussar 50c.c. AC(> 2003 / Bulón 12mm) - Min.horiz |
| Keeway | Swan 50 |
| Keeway | Matrix 50 |
| Keeway | Focus 50 |
| Keeway | Hurricane 50 |
| Keeway | RY8 50 |
| Keeway | RX8 50 |
| Keeway | Flash 50 |
| Keeway | F-ACT 50 |
| Lifan | S-Ray 50 (2-tiempos) |
| Malaguti | F12 Phantom 50cc AC (a partir del 2007/ motor CPI) |
| Malaguti | F10 Wap 50 (a partir del 2008 / motor CPI) |
| Sachs | Speedjet R 50 |
| Sachs | Speedjet 50 |
| Sachs | SX-1 50 |