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One of the largest diaphragms you can buy and mount without reworking your crankcases. I do recommend solid diaphragm valves from Polini for 20 HP or more. These can be ordered separately. Click here for special Polini valves
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Reference: 7671264
Brand: BGM
Ideal manifold to mount a larger carb i.c.m. your original runner 180cc air filter. But also with Powerfilter this is a very fine manifold because you can determine the position yourself. Intake diameter +- 34mm. Mounting a Polini CP 23 to a Polini PWK 30mm goes fine with that manifold. Caution! This manifold is quite fragile, you should not tighten the...
Reference: P2130525
Brand: Polini
Polini carbon fiber membrane plates! (39x32mm, 0.30mm). Especially for the BGM membrane.
Reference: 7675121
Brand: V-Force
The V-Force 4 is the big daddy among diaphragms. Unfortunately, you don't just mount these on a Piaggio engine block. You need an adapter. This can be ordered separately.
Reference: V301B
Brand: V-Force
Increase the performance of your scooter with the V-Force 3 reed valve intake system.
Reference: 70876
Brand: Polini
Polini BIG-Evolution diaphragm for Piaggio & Gilera 50cc 125cc 180cc engines (2-stroke)PLEASE NOTE: The crankcase must be adjusted for mounting this diaphragm according to the enclosed instruction.
Reference: WBT-00001
Brand: WBTuning
The V-Force 4 imitation from China, work fine. Unfortunately, you don't just mount these on a Piaggio engine block. You need an adapter. You can order these separately.
Reference: 279490C0
Brand: MALOSSI
One of the most popular diaphragms on the market. The MHR VL13 from manufacturer MALOSSI.
Reference: 277708C0
Brand: MALOSSI
One of the most popular diaphragms on the market. The MHR VL13 from manufacturer MALOSSI.
Reference: 2713719C0
Brand: MALOSSI
One of the best diaphragms on the market. The MHR VL16 from manufacturer MALOSSI. Caution! For this diaphragm you need to adapt the crankcase (make it bigger)
Reference: S6-3219002
Brand: Stage 6
VFORCE 3 diaphragm for Piaggio 50cc and Piaggio 125-180cc engines. This diaphragm is designed by Moto Tassinari and Stage 6. This diaphragm fits WITHOUT modifications to your crankcase in your engine block.
One of the largest diaphragms you can buy and mount without reworking your crankcases. I do recommend solid diaphragm valves from Polini for 20 HP or more. These can be ordered separately. Click here for special Polini valves