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Reed Valves and Petals

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Derestrictor kit Intake gasket Intake kit Intake spacer Reed petals Reed valve
Brand
Athena Barikit CBE Derbi Doppler Easyboost Italkit KRM Malossi Moose Racing MotoForce MotoForce Racing MVT MXS Racing Naraku Peugeot Piaggio Polini Schmitt Stage6 Standard Parts V Force Voca Racing Yamaha
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MotoForce
Reed Valve MotoForce Derbi
Article no.: MF35.19301

Reed Valve MotoForce Derbi

9,60 €
In stock
MotoForce
Reed Valve Motoforce Minarelli vertical
Article no.: MF35.16800
1

Reed Valve Motoforce Minarelli vertical

6,60 €
In stock
RRP
7,30 €
-10% Discount
MotoForce
Reed Valve Motoforce Minarelli horizontal / China 2-stroke
Article no.: MF35.16600
1

Reed Valve Motoforce Minarelli horizontal / China 2-stroke

12,00 €
In stock
RRP
13,50 €
-11% Discount
MotoForce
Reed Valve Piaggio / Gilera / Vespa / Derbi / Aprilia
Article no.: MF35.14000
1

Reed Valve Piaggio / Gilera / Vespa / Derbi / Aprilia

13,00 €
In stock
MotoForce
Reed Valve Motoforce Peugeot horizontal
Article no.: MF35.17800
3

Reed Valve Motoforce Peugeot horizontal

9,00 €
In stock
RRP
15,50 €
-42% Discount
Sale
MotoForce
Reed Valve Motoforce Peugeot vertical / Honda
Article no.: MF35.17500
3

Reed Valve Motoforce Peugeot vertical / Honda

11,00 €
In stock
RRP
19,00 €
-42% Discount
Sale
MotoForce
Reed Valve MotoForce AM6
Article no.: MF35.18805
14

Reed Valve MotoForce AM6

16,50 €
In stock
MotoForce
Reed Valve Yamaha PW 50
Article no.: MF35.19901

Reed Valve Yamaha PW 50

3,90 €
In stock
RRP
4,50 €
-13% Discount
MotoForce
Reed Valve Motoforce Puch Maxi / Peugeot 103
Article no.: MF35.13201

Reed Valve Motoforce Puch Maxi / Peugeot 103

5,80 €
In stock
RRP
5,90 €
-2% Discount
Stage6
Reed Valve V-Force 4 Stage6 Honda CR85 / Derbi
Article no.: S6-3219004

Reed Valve V-Force 4 Stage6 Honda CR85 / Derbi

166,00 €
In stock
RRP
221,00 €
-25% Discount
Sale
Stage6
VForce 3 Reed valve AM6 Stage6
Article no.: S6-3219001
12

VForce 3 Reed valve AM6 Stage6

99,00 €
In stock
RRP
110,00 €
-10% Discount
Stage6
Intake Kit Stage6 MK2 Oversize 24/35MM PHBG / PWK Minarelli vertical
Article no.: S6-3216800
76

Intake Kit Stage6 MK2 Oversize 24/35MM PHBG / PWK Minarelli vertical

103,00 €
In stock
RRP
114,00 €
-10% Discount
Stage6
Reed Valve Stage6 VFORCE 3 Piaggio / Gilera / Vespa
Article no.: S6-3219002
17

Reed Valve Stage6 VFORCE 3 Piaggio / Gilera / Vespa

95,00 €
In stock
RRP
105,00 €
-10% Discount
Stage6
Reed Valve Stage6 Viton Piaggio
Article no.: S6-3219040/VT
8

Reed Valve Stage6 Viton Piaggio

65,00 €
In stock
RRP
72,00 €
-10% Discount
Stage6
Reed Valve Spacer 10mm AM6 / Derbi Stage6 purple
Article no.: S6-3318809/PU

Reed Valve Spacer 10mm AM6 / Derbi Stage6 purple

18,00 €
In stock
RRP
27,00 €
-33% Discount
Sale
Stage6
Reed Valve Spacer 10mm AM6 / Derbi Stage6 turquoise
Article no.: S6-3318809/TU

Reed Valve Spacer 10mm AM6 / Derbi Stage6 turquoise

17,00 €
In stock
RRP
27,00 €
-37% Discount
Sale
Stage6
Reed Valve Spacer 5mm AM6 / Derbi Stage6 purple
Article no.: S6-3318810/PU

Reed Valve Spacer 5mm AM6 / Derbi Stage6 purple

17,00 €
In stock
RRP
27,00 €
-37% Discount
Sale
Stage6
Reed Valve Spacer 5mm AM6 / Derbi Stage6 turquoise
Article no.: S6-3318810/TU

Reed Valve Spacer 5mm AM6 / Derbi Stage6 turquoise

17,00 €
In stock
RRP
27,00 €
-37% Discount
Sale
Stage6
Reed Valve Spacer 5° incline AM6 / Derbi Stage6 purple
Article no.: S6-3318811/PU

Reed Valve Spacer 5° incline AM6 / Derbi Stage6 purple

24,00 €
In stock
RRP
26,00 €
-8% Discount
Stage6
Reed Valve Spacer 5° incline AM6 / Derbi Stage6 turquoise
Article no.: S6-3318811/TU

Reed Valve Spacer 5° incline AM6 / Derbi Stage6 turquoise

18,00 €
In stock
RRP
26,00 €
-31% Discount
Sale
Stage6
Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Green
Article no.: S6-3318811/GR

Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Green

17,00 €
In stock
RRP
26,00 €
-35% Discount
Sale
Stage6
Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Orange
Article no.: S6-3318811/OR

Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Orange

17,00 €
In stock
RRP
26,00 €
-35% Discount
Sale
Stage6
Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Blue
Article no.: S6-3318811/BL

Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Blue

24,00 €
In stock
RRP
26,00 €
-8% Discount
Stage6
Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Red
Article no.: S6-3318811/RE

Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Red

24,00 €
In stock
RRP
26,00 €
-8% Discount
Stage6
Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Black
Article no.: S6-3318811/BK

Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Black

24,00 €
In stock
RRP
26,00 €
-8% Discount
Stage6
Reed Valve Spacer 5mm AM6 / Derbi Stage6 Green
Article no.: S6-3318810/GR

Reed Valve Spacer 5mm AM6 / Derbi Stage6 Green

16,00 €
In stock
RRP
27,00 €
-41% Discount
Sale
Stage6
Reed Valve Spacer 5mm AM6 / Derbi Stage6 Yellow
Article no.: S6-3318810/YE

Reed Valve Spacer 5mm AM6 / Derbi Stage6 Yellow

25,00 €
In stock
RRP
27,00 €
-7% Discount
Stage6
Reed Valve Spacer 5mm AM6 / Derbi Stage6 Blue
Article no.: S6-3318810/BL

Reed Valve Spacer 5mm AM6 / Derbi Stage6 Blue

18,00 €
In stock
RRP
27,00 €
-33% Discount
Sale
Stage6
Reed Valve Spacer 5mm AM6 / Derbi Stage6 Red
Article no.: S6-3318810/RE

Reed Valve Spacer 5mm AM6 / Derbi Stage6 Red

16,00 €
In stock
RRP
27,00 €
-41% Discount
Sale
Stage6
Reed Valve Spacer 5mm AM6 / Derbi Stage6 Black
Article no.: S6-3318810/BK

Reed Valve Spacer 5mm AM6 / Derbi Stage6 Black

25,00 €
In stock
RRP
27,00 €
-7% Discount
Stage6
Reed Valve Spacer 10mm AM6 / Derbi Stage6 Green
Article no.: S6-3318809/GR

Reed Valve Spacer 10mm AM6 / Derbi Stage6 Green

17,00 €
In stock
RRP
27,00 €
-37% Discount
Sale
Stage6
Reed Valve Spacer 10mm AM6 / Derbi Stage6 Yellow
Article no.: S6-3318809/YE

Reed Valve Spacer 10mm AM6 / Derbi Stage6 Yellow

25,00 €
In stock
RRP
27,00 €
-7% Discount
Stage6
Reed Valve Spacer 10mm AM6 / Derbi Stage6 Orange
Article no.: S6-3318809/OR

Reed Valve Spacer 10mm AM6 / Derbi Stage6 Orange

18,00 €
In stock
RRP
27,00 €
-33% Discount
Sale
Stage6
Reed Valve Spacer 10mm AM6 / Derbi Stage6 Blue
Article no.: S6-3318809/BL

Reed Valve Spacer 10mm AM6 / Derbi Stage6 Blue

25,00 €
In stock
RRP
27,00 €
-7% Discount
Stage6
Reed Valve Spacer 10mm AM6 / Derbi Stage6 Red
Article no.: S6-3318809/RE

Reed Valve Spacer 10mm AM6 / Derbi Stage6 Red

25,00 €
In stock
RRP
27,00 €
-7% Discount
Stage6
Reed Valve Spacer 10mm AM6 / Derbi Stage6 Black
Article no.: S6-3318809/BK

Reed Valve Spacer 10mm AM6 / Derbi Stage6 Black

25,00 €
In stock
RRP
27,00 €
-7% Discount
Stage6
Intake Kit Stage6 MK2 24/35mm PHBG / PWK Piaggio
Article no.: S6-3214000
16

Intake Kit Stage6 MK2 24/35mm PHBG / PWK Piaggio

105,00 €
In stock
RRP
116,00 €
-9% Discount
Stage6
Reed Valve Stage6 Viton Peugeot horizontal
Article no.: S6-3219078/VT
2

Reed Valve Stage6 Viton Peugeot horizontal

46,00 €
In stock
RRP
71,00 €
-35% Discount
Sale
Stage6
Reed Petal Carbon Stage6 Minarelli vertical
Article no.: S6-3219068ET01

Reed Petal Carbon Stage6 Minarelli vertical

11,50 €
In stock
Stage6
Reed Valve Stage6 Puch Maxi / Peugeot 103
Article no.: S6-3219074

Reed Valve Stage6 Puch Maxi / Peugeot 103

17,00 €
In stock
Stage6
Intake Kit Stage6 MK2 Minarelli horizontal / China 2T
Article no.: S6-3216600
24

Intake Kit Stage6 MK2 Minarelli horizontal / China 2T

75,00 €
In stock
RRP
83,00 €
-10% Discount
Stage6
Carbon Fiber Sheet 0,35mm Stage6 cut out
Article no.: S6-325001

Carbon Fiber Sheet 0,35mm Stage6 cut out

39,00 €
In stock
RRP
43,00 €
-9% Discount
Stage6
Intake Kit Stage6 MK2 Peugeot vertical
Article no.: S6-3217500
45

Intake Kit Stage6 MK2 Peugeot vertical

79,00 €
In stock
RRP
87,00 €
-9% Discount
Stage6
Reed Valve Stage6 R/T Viton AM6 / Derbi
Article no.: s6-3219088/VT
40

Reed Valve Stage6 R/T Viton AM6 / Derbi

65,00 €
In stock
RRP
72,00 €
-10% Discount
Stage6
Reed Valve Stage6 VFORCE 3 Minarelli horizontal
Article no.: S6-3219000
21

Reed Valve Stage6 VFORCE 3 Minarelli horizontal

90,00 €
In stock
RRP
100,00 €
-10% Discount
Stage6
Reed Valve Stage6 VForce 3i Honda CR85 / Derbi
Article no.: S6-3219005

Reed Valve Stage6 VForce 3i Honda CR85 / Derbi

120,00 €
In stock
RRP
221,00 €
-46% Discount
Sale
MXS Racing
Intake Kit Big Valve MXS Racing 35mm (PWK / VHST) + Stage6 reed valve Minarelli vertical
Article no.: MS-PKMMXS010/2
4

Intake Kit Big Valve MXS Racing 35mm (PWK / VHST) + Stage6 reed valve Minarelli vertical

120,60 €
In stock
RRP
133,00 €
-9% Discount
MXS Racing
Intake Kit Big Valve MXS Racing HighFlow 35mm PWK / VHST Minarelli vertical
Article no.: MS-PKMMXS010/1
5

Intake Kit Big Valve MXS Racing HighFlow 35mm PWK / VHST Minarelli vertical

150,10 €
In stock
158,00 €
-5% Set-Rabatt
Malossi
Reed Petals Malossi carbon 0.30 / 0.35 / 0.40mm Minarelli vertical
Article no.: M273549.C0

Reed Petals Malossi carbon 0.30 / 0.35 / 0.40mm Minarelli vertical

19,50 €
In stock
RRP
20,00 €
-3% Discount
Malossi
Reed Valve Malossi VL2 MBK 51
Article no.: M273021.K0
3

Reed Valve Malossi VL2 MBK 51

22,00 €
In stock
Sale
Malossi
Reed Valve Malossi Spacer 5mm Yamaha Aerox / MBK Nitro
Article no.: M2013224
8

Reed Valve Malossi Spacer 5mm Yamaha Aerox / MBK Nitro

17,50 €
In stock
RRP
20,00 €
-13% Discount
Malossi
Reed valve Malossi VL5 Yamaha DT80
Article no.: M273407.C0

Reed valve Malossi VL5 Yamaha DT80

32,50 €
In stock
RRP
41,00 €
-21% 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 Petals Malossi VL9 / VL12 Karbonit 0.3 / 0.35
Article no.: M278118.K0

Reed Petals Malossi VL9 / VL12 Karbonit 0.3 / 0.35

15,00 €
In stock
RRP
19,00 €
-21% Discount
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
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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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