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Reed Valves and Petals

(14 products)
Carburetor and Intake Carburetors Intake Manifolds Reed Valves and Petals Carburetor Accessories Jets Fuel System Air filter Injection System
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Product type
Intake kit Reed petals Reed valve
Brand
Barikit Malossi Polini Stage6
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Stage6
Carbon Fiber Sheet 0,35mm Stage6 cut out
Article no.: S6-325001

Carbon Fiber Sheet 0,35mm Stage6 cut out

37,00 €
In stock
RRP
40,50 €
-9% Discount
Malossi
Reed Plates Malossi Karbonit 100x100mm 0.4 (x2)
Article no.: M277366.M0

Reed Plates Malossi Karbonit 100x100mm 0.4 (x2)

16,50 €
In stock
RRP
21,00 €
-21% Discount
New
Malossi
Reed Plates Malossi Karbonit 100x100mm 0.35 (x2)
Article no.: M277366.L0

Reed Plates Malossi Karbonit 100x100mm 0.35 (x2)

14,50 €
In stock
RRP
18,00 €
-19% Discount
New
Malossi
Reed Plates Malossi Carbon 100x100mm 0.4 (x2)
Article no.: M277366.E0

Reed Plates Malossi Carbon 100x100mm 0.4 (x2)

38,50 €
In stock
RRP
48,00 €
-20% Discount
New
Malossi
Reed Plates Malossi Carbon 100x100mm 0.35 (x2)
Article no.: M277366.D0

Reed Plates Malossi Carbon 100x100mm 0.35 (x2)

36,00 €
In stock
RRP
45,00 €
-20% Discount
New
Malossi
Reed Plates Malossi Karbonit 100x100mm 0.30 (x2)
Article no.: M277366.K0

Reed Plates Malossi Karbonit 100x100mm 0.30 (x2)

12,50 €
In stock
RRP
16,00 €
-22% Discount
New
Polini
Intake Kit Polini 23mm PHBG Piaggio APE 50ccm
Article no.: P215.0271

Intake Kit Polini 23mm PHBG Piaggio APE 50ccm

99,00 €
In stock
RRP
116,00 €
-15% Discount
Polini
Carbon Fiber Sheet Polini (110x110)
Article no.: P213.06_PLAQUE_CARBONE
20

Carbon Fiber Sheet Polini (110x110)

from 33,00 €
In stock
48,00 €
-31% Discount
Barikit
Carbon Fiber Sheet Barikit 0.35mm
Article no.: BAR-PLA-01
17

Carbon Fiber Sheet Barikit 0.35mm

16,00 €
In stock
Malossi
Carbon Fiber Sheets Malossi 0.30mm (100x100)
Article no.: M277366.C0
4

Carbon Fiber Sheets Malossi 0.30mm (100x100)

41,00 €
Currently not in stock
RRP
42,00 €
-2% Discount
Malossi
Intake Kit Malossi 31mm PHBL Vespa PK 50 / 125cc
Article no.: M204711

Intake Kit Malossi 31mm PHBL Vespa PK 50 / 125cc

148,00 €
Currently not in stock
RRP
151,00 €
-2% Discount
Malossi
Intake Kit Malossi 31mm PHBL Vespa Primavera ET3 125cc
Article no.: M204710

Intake Kit Malossi 31mm PHBL Vespa Primavera ET3 125cc

158,00 €
Currently not in stock
RRP
162,00 €
-2% Discount
Polini
Reed Valve Polini aluminium 152cc Vespa 125cc Primavera ET3
Article no.: P213.0054

Reed Valve Polini aluminium 152cc Vespa 125cc Primavera ET3

92,00 €
Currently not in stock
RRP
109,00 €
-16% Discount
Polini
Reed Valve for Intake Manifold Polini Vespa 50 Special / 125 Primavera / ET3
Article no.: P213.0012

Reed Valve for Intake Manifold Polini Vespa 50 Special / 125 Primavera / ET3

50,00 €
Currently not in stock
RRP
58,00 €
-14% Discount

Valve box

The valve gear is a specific part of the 2-stroke engine. It was created to regulate cylinder filling and increase the engine's range of use (without a valve gear, engines were more hollow, and deployed their power more brutally).

Renowned brands such as Moto Tassinari, Stage6, Italkit, Polini and Malossi have developed top-of-the-range products specific to the most popular models on the market.

Performance enhancement

A valve gear can provide a power gain across the entire curve, thanks to more efficient cylinder filling (greater flow).

Lamella materials and thickness (steel, fiber, carbon, epoxy mix) can also have an impact on low or high revs, depending on the choice made. Generally speaking :

  • thicker = harder = less torque, but possible gain at high revs
  • thinner = softer = better acceleration but losses at high revs

Ideally, you should be able to test several and choose the best compromise for your machine.

We also offer clamshell gearbox shims, which increase the volume in the crankcase.

Choosing the right valve box

When preparing an engine, particularly in the world of 50cc scooters and motorcycles, it's important to choose a valve gear suited to the cylinder kit fitted: the more powerful the cylinder kit, the greater the mixture volume provided by the valve gear.

For example, many brands offer "big valve" kits for the MBK Booster, MBK Nitro or Piaggio Zip , whose valve box is extremely small as standard.

On a 50cc motorcycle, with a Minarelli AM6 or Derbi engine, a big valve box means that the crankcases have to be reworked. Keep an eye on this!

For motocross, Moto Tassinari offers V-Force valve gearboxes, which are easy to fit and directly improve flow. You won't have to worry about the thickness of the slats, which has been pre-studied for most popular models(KTM SX, Yamaha YZ, Honda CR, etc...) by the manufacturer.

To make life easier for you, we offer complete intake kits , including intake pipe, valve box and a number of useful accessories.

Cost-effective repairs

The entire valve box can be replaced, but this is not necessarily necessary. In fact, it's the slats that move very quickly and are subject to high stress. They need to be replaced at regular intervals when they become leaky.

In our shop, you'll find a vast choice of carbon, fiberglass and metal slats.

For the rarest models, we offer cut-to-size carbon sheets.

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