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Reed Valves and Petals

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Carburetor kit Derestrictor kit Intake gasket Intake kit Intake spacer Reed petals Reed valve
Brand
Athena Barikit CBE Derbi Doppler Easyboost Italkit KRM Malossi Metrakit Moose Racing MotoForce MotoForce Racing MVT MXS Racing Naraku Peugeot Piaggio Polini Schmitt Stage6 Stage6 R/T Standard Parts V Force Voca Racing Yamaha
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Malossi
Reed Valve Malossi VL18 AM6 / Derbi
Article no.: M2715810.C0

Reed Valve Malossi VL18 AM6 / Derbi

62,00 €
In stock
RRP
70,00 €
-11% Discount
Sale
Derbi
Reed Valve Derbi Euro 3 (D50B0)
Article no.: OE-DE847092

Reed Valve Derbi Euro 3 (D50B0)

36,00 €
In stock
42,00 €
-14% Discount
Sale
Malossi
Reed Valve Malossi VL2 MBK 51
Article no.: M273021.K0

Reed Valve Malossi VL2 MBK 51

21,00 €
In stock
Sale
Standard Parts
Reed Valve Peugeot 103
Article no.: CGN635

Reed Valve Peugeot 103

5,30 €
In stock
Standard Parts
Reed Valve MBK 51
Article no.: CGN4067

Reed Valve MBK 51

6,70 €
In stock
Doppler
Reed Petals Doppler reed valve S2R Piaggio
Article no.: CGN440176

Reed Petals Doppler reed valve S2R Piaggio

11,00 €
In stock
Doppler
Reed Petals for Doppler reed valve ER2 fiberglass AM6
Article no.: CGN440167

Reed Petals for Doppler reed valve ER2 fiberglass AM6

8,00 €
In stock
RRP
11,00 €
-27% Discount
Sale
Doppler
Reed Petals Doppler reed valve S2R Peugeot stehend
Article no.: CGN440165

Reed Petals Doppler reed valve S2R Peugeot stehend

9,00 €
In stock
RRP
11,00 €
-18% Discount
Sale
Doppler
Reed Petals Doppler reed valve S2R Minarelli vertical
Article no.: CGN440164

Reed Petals Doppler reed valve S2R Minarelli vertical

8,00 €
In stock
RRP
11,00 €
-27% Discount
Sale
Easyboost
Reed Valve Spacer Easyboost 5mm Yamaha Aerox
Article no.: EB016

Reed Valve Spacer Easyboost 5mm Yamaha Aerox

16,50 €
In stock
Polini
Carbon Fiber Sheet Polini (110x110)
Article no.: P213.06_PLAQUE_CARBONE

Carbon Fiber Sheet Polini (110x110)

33,00 €
In stock
46,00 €
-28% Discount
MVT
Intake System MVT Racing 35mm PWK / VHST Minarelli vertical
Article no.: MVT-CL80

Intake System MVT Racing 35mm PWK / VHST Minarelli vertical

54,00 €
In stock
RRP
64,00 €
-16% Discount
Malossi
Carbon Fiber Sheets Malossi 0.30mm (100x100)
Article no.: M277366.C0

Carbon Fiber Sheets Malossi 0.30mm (100x100)

32,00 €
In stock
RRP
42,00 €
-24% Discount
Sale
Barikit
Carbon Fiber Sheet Barikit 0.35mm
Article no.: BAR-PLA-01

Carbon Fiber Sheet Barikit 0.35mm

16,00 €
In stock
Malossi
Reed Valve Malossi MHR VL17 AM6 / Derbi
Article no.: M2714152.CO

Reed Valve Malossi MHR VL17 AM6 / Derbi

61,50 €
In stock
MVT
Intake Kit MVT 24-28mm AM6
Article no.: MVT-CL10
1

Intake Kit MVT 24-28mm AM6

54,00 €
In stock
RRP
64,00 €
-16% Discount
Malossi
Reed Valve Spacer Malossi 5mm Minarelli horizontal
Article no.: M2013224

Reed Valve Spacer Malossi 5mm Minarelli horizontal

17,50 €
In stock
RRP
20,00 €
-13% Discount
Metrakit
Reed Valve Metrakit VForce V4R Honda CR85 / Derbi
Article no.: MK924C0100

Reed Valve Metrakit VForce V4R Honda CR85 / Derbi

179,00 €
In stock
Malossi
Reed Plates Malossi Karbonit 100x100mm 0.4 (x2)
Article no.: M277366.M0

Reed Plates Malossi Karbonit 100x100mm 0.4 (x2)

13,00 €
In stock
RRP
21,00 €
-38% Discount
Sale
Malossi
Reed Plates Malossi Karbonit 100x100mm 0.35 (x2)
Article no.: M277366.L0

Reed Plates Malossi Karbonit 100x100mm 0.35 (x2)

11,00 €
In stock
RRP
18,00 €
-39% Discount
Sale
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
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
Malossi
Reed Plates Malossi Karbonit 100x100mm 0.30 (x2)
Article no.: M277366.K0

Reed Plates Malossi Karbonit 100x100mm 0.30 (x2)

10,00 €
In stock
RRP
16,00 €
-38% Discount
Sale
Malossi
Reed Petals Malossi VL6 Karbonit 0.3
Article no.: M275614.O0

Reed Petals Malossi VL6 Karbonit 0.3

5,60 €
In stock
RRP
6,60 €
-15% Discount
Malossi
Reed Petals Malossi VL9 / VL12 Karbonit 0.3 / 0.35
Article no.: M278118.K0

Reed Petals Malossi VL9 / VL12 Karbonit 0.3 / 0.35

13,00 €
In stock
RRP
19,00 €
-32% Discount
Sale
Malossi
Reed Petals Malossi VL1 Karbonit 0.3 / 0.35
Article no.: M275616.K0

Reed Petals Malossi VL1 Karbonit 0.3 / 0.35

8,00 €
In stock
RRP
10,00 €
-20% Discount
Malossi
Reed Petals Malossi VL1 Carbon 0.3 / 0.35 / 0.5
Article no.: M275616.C0

Reed Petals Malossi VL1 Carbon 0.3 / 0.35 / 0.5

13,00 €
In stock
RRP
17,00 €
-24% Discount
Malossi
Reed Petals Malossi Karbonit 0.3 / 0.35 Honda Vision 50
Article no.: M271423.K0

Reed Petals Malossi Karbonit 0.3 / 0.35 Honda Vision 50

8,20 €
In stock
RRP
11,00 €
-25% Discount
Malossi
Reed Petals Malossi Carbon 0.3 / 0.35 Honda Vision 50
Article no.: M271423.C0

Reed Petals Malossi Carbon 0.3 / 0.35 Honda Vision 50

14,00 €
In stock
RRP
18,00 €
-22% Discount
Malossi
Reed Petals Malossi Karbonit 0.30 Honda / Sym
Article no.: M271090.O0

Reed Petals Malossi Karbonit 0.30 Honda / Sym

5,30 €
In stock
RRP
6,60 €
-20% Discount
Malossi
Reed Petals Malossi VL20 Carbon 0.30 / 45°
Article no.: M2718443E

Reed Petals Malossi VL20 Carbon 0.30 / 45°

8,00 €
In stock
RRP
10,00 €
-20% Discount
Malossi
Reed Petals Malossi VL18 Carbon 0.30 / 45°
Article no.: M2718471E

Reed Petals Malossi VL18 Carbon 0.30 / 45°

9,40 €
In stock
RRP
12,00 €
-22% Discount
Doppler
Reed Valve Spacer Doppler 5mm Minarelli Blue
Article no.: CGN538405

Reed Valve Spacer Doppler 5mm Minarelli Blue

12,00 €
In stock
RRP
15,00 €
-20% Discount
Sale
Polini
Reed Valve Polini Piaggio Ciao
Article no.: P213.0059

Reed Valve Polini Piaggio Ciao

26,00 €
In stock
RRP
38,00 €
-32% Discount
Italkit
Reed Petals Vetronit Italkit Double Prism Aprilia RS 125cc (Motor 122)
Article no.: IKLP.01.125

Reed Petals Vetronit Italkit Double Prism Aprilia RS 125cc (Motor 122)

39,00 €
In stock
Sale
Italkit
Intake Kit Italkit Big Valve metal flange 35mm Derbi Variant Start
Article no.: IKLC.12.02

Intake Kit Italkit Big Valve metal flange 35mm Derbi Variant Start

95,00 €
In stock
RRP
132,00 €
-28% Discount
Italkit
Reed Valve and Intake Manifold Italkit KTM SX 65 after 2009
Article no.: IKLC.34.11

Reed Valve and Intake Manifold Italkit KTM SX 65 after 2009

80,00 €
In stock
Sale
Italkit
Reed Valve Italkit KTM / Husqvarna
Article no.: IKLC.34.60

Reed Valve Italkit KTM / Husqvarna

114,00 €
In stock
120,00 €
-5% Discount
Sale
Schmitt
Reed Box Schmitt 50-85cc Simson M500 / M700
Article no.: STT49229

Reed Box Schmitt 50-85cc Simson M500 / M700

43,00 €
In stock
54,00 €
-20% Discount
Sale
KRM
Reed Valve Spacer 5mm KRM AM6 dark blue
Article no.: KR689F

Reed Valve Spacer 5mm KRM AM6 dark blue

21,00 €
In stock
Voca Racing
Reed Valve Spacer 10mm Voca Yamaha DT 50 LC Portugal red
Article no.: VCR-RD13.SPC.130.RE

Reed Valve Spacer 10mm Voca Yamaha DT 50 LC Portugal red

14,00 €
In stock
RRP
22,00 €
-36% Discount
Voca Racing
Reed Valve Spacer 10mm Voca Yamaha DT 50 LC Portugal blue
Article no.: VCR-RD13.SPC.130.BL

Reed Valve Spacer 10mm Voca Yamaha DT 50 LC Portugal blue

14,00 €
In stock
RRP
22,00 €
-36% Discount
Malossi
Reed Valve Malossi VL1 Peugeot 103
Article no.: M272356.K0

Reed Valve Malossi VL1 Peugeot 103

16,00 €
In stock
20,50 €
-22% Discount
Sale
Polini
Reed Valve Polini PRE 100
Article no.: P213.0056

Reed Valve Polini PRE 100

70,00 €
In stock
RRP
90,00 €
-22% Discount
Sale
Doppler
Reed Valve Spacer Doppler 5mm black Minarelli horizontal
Article no.: CGN498841

Reed Valve Spacer Doppler 5mm black Minarelli horizontal

12,00 €
In stock
RRP
15,00 €
-20% Discount
Sale
Malossi
Reed Valve Malossi VL6 AM6 / Derbi
Article no.: M274235.C0

Reed Valve Malossi VL6 AM6 / Derbi

36,50 €
In stock
RRP
39,00 €
-6% Discount
Doppler
Reed Valve Doppler ER2 AM6
Article no.: CGN279479

Reed Valve Doppler ER2 AM6

40,00 €
In stock
RRP
50,00 €
-20% Discount
Sale
Malossi
Reed Petals Malossi carbon 0.30 / 0.35 / 0.40mm AM6
Article no.: M2712430.C0

Reed Petals Malossi carbon 0.30 / 0.35 / 0.40mm AM6

31,00 €
In stock
Malossi
Reed Petals Malossi VL13 0.30mm 90° x2
Article no.: M279488.C0

Reed Petals Malossi VL13 0.30mm 90° x2

16,00 €
In stock
Sale
Malossi
Reed Petals Malossi VL13 0.30mm (45°) x2
Article no.: M2711798.C0

Reed Petals Malossi VL13 0.30mm (45°) x2

23,00 €
In stock
Sale
Polini
Reed Valve Polini Minarelli vertical
Article no.: P213.0050

Reed Valve Polini Minarelli vertical

46,00 €
In stock
RRP
51,00 €
-10% Discount
Sale
Polini
Reed Valve Polini Peugeot Speedfight / Trekker
Article no.: P213.0049

Reed Valve Polini Peugeot Speedfight / Trekker

43,00 €
In stock
RRP
51,00 €
-16% Discount
Sale
Standard Parts
Reed Valve OEM quality Pocket Bike
Article no.: SP-184568

Reed Valve OEM quality Pocket Bike

3,00 €
In stock
RRP
4,10 €
-27% Discount
Malossi
Reed Valve Malossi VL20 for Malossi crankcase Piaggio Ciao
Article no.: M2718442B

Reed Valve Malossi VL20 for Malossi crankcase Piaggio Ciao

37,00 €
In stock
RRP
60,00 €
-38% Discount
Polini
Reed Valve Polini Big Valve for mopeds
Article no.: P213.0020

Reed Valve Polini Big Valve for mopeds

20,50 €
In stock
RRP
21,00 €
-2% Discount
Polini
Intake Kit Polini Big Valve d=12-15mm Peugeot 103 SP / MVL
Article no.: P215.0300

Intake Kit Polini Big Valve d=12-15mm Peugeot 103 SP / MVL

58,00 €
In stock
RRP
59,00 €
-2% Discount
Polini
Intake Kit Polini Big Valve 23mm PHBG MBK 51
Article no.: P215.0246

Intake Kit Polini Big Valve 23mm PHBG MBK 51

57,00 €
In stock
RRP
67,00 €
-15% Discount
Polini
Reed Valve Polini Peugeot 103
Article no.: P213.0017

Reed Valve Polini Peugeot 103

13,00 €
In stock
RRP
14,00 €
-7% Discount
KRM
Reed Valve Spacer 10mm KRM pink Minarelli AM6
Article no.: KR459F

Reed Valve Spacer 10mm KRM pink Minarelli AM6

24,50 €
In stock
KRM
Reed Valve Spacer 5mm KRM pink Derbi
Article no.: KR458F

Reed Valve Spacer 5mm KRM pink Derbi

17,00 €
In stock
19,00 €
-11% Discount
Sale
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Reed valve

The reed valve is a component found only on 2-stroke engines. It controls cylinder filling and extends the usable RPM range of the engine. Without a reed valve, engines would be weaker at low RPM and would deliver power much more abruptly.

Well-known brands such as Moto Tassinari, Stage6, Italkit, Polini, or Malossi offer high-quality reed valves for the most common models.

Performance improvement via reed valve

A reed valve can improve performance across the entire RPM range, as the cylinder is filled more efficiently and a higher flow rate is possible.

The material and thickness of the reed petals (steel, fiberglass, carbon, epoxy composite) also influence behavior at low or high RPM. As a general rule:

  • Thicker = stiffer = less torque, but possible gains at high RPM
  • Thinner = more flexible = better acceleration, but losses at high RPM

It is recommended to test different options and select the setup that best suits the vehicle.

Reed valve spacers are also available, allowing the crankcase volume to be increased.

Choosing the right reed valve

When setting up an engine, especially on 50cc scooters and gear bikes, the reed valve should match the cylinder kit. The more powerful the cylinder, the greater the flow capacity required from the reed valve.

Many manufacturers offer so-called “big valve” kits for tuned scooters such as Yamaha Aerox or Piaggio Zip, where the original reed valve is very small.

On geared motorbikes with Minarelli AM6 or Derbi engines, installing a larger reed valve often requires modification of the crankcase. Please take this into account.

In the motocross segment, Moto Tassinari offers V-Force reed valves, which are easy to install and provide improved flow. The thickness of the reed blades is already optimized for many common models (KTM SX, Yamaha YZ, Honda CR, etc.).

To simplify installation, complete intake kits are also available, including intake manifold, reed valve, and additional components.

Replacement reed petals for cost-effective repair

The reed valve can be replaced entirely, but this is often not necessary. The reed petals, or reed blades, move very quickly and are subject to high loads. They should be replaced regularly when they are no longer sealing properly.

A wide range of reed petals made of carbon, fiberglass, or metal is available.

There are also carbon reed sheets, allowing you to cut reed petals to a desired size, for example for less common models.

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