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Reed Valves and Petals

(153 products)
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Product type
Carburetor kit Intake kit Intake spacer Reed petals Reed valve
Brand
CBE Derbi Doppler Easyboost Italkit KRM Malossi Metrakit MotoForce MotoForce Racing MVT MXS Custom MXS Racing Naraku Piaggio Polini Stage6 Stage6 R/T Standard Parts Voca Racing Yamaha
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Stage6
Reed Valve V-Force 4 Stage6 Honda CR85 / Derbi
Article no.: S6-3219004

Reed Valve V-Force 4 Stage6 Honda CR85 / Derbi

199,00 €
In stock
RRP
221,00 €
-10% Discount
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
Reed Valve Stage6 Vforce 3 Piaggio 125 - 180
Article no.: S6-3219006

Reed Valve Stage6 Vforce 3 Piaggio 125 - 180

119,00 €
In stock
RRP
132,00 €
-10% Discount
New
Stage6
Reed Valve Spacer 10mm AM6 / Derbi Stage6 purple
Article no.: S6-3318809/PU

Reed Valve Spacer 10mm AM6 / Derbi Stage6 purple

25,00 €
In stock
RRP
27,00 €
-7% Discount
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

25,00 €
In stock
RRP
27,00 €
-7% Discount
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 Yellow
Article no.: S6-3318811/YE

Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Yellow

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

Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Orange

24,00 €
In stock
RRP
26,00 €
-8% Discount
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 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

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

Reed Valve Spacer 5mm AM6 / Derbi Stage6 Orange

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

Reed Valve Spacer 5mm AM6 / Derbi Stage6 Blue

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

Reed Valve Spacer 5mm AM6 / Derbi Stage6 Red

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

Reed Valve Spacer 5mm AM6 / Derbi Stage6 Black

22,00 €
In stock
RRP
27,00 €
-19% Discount
Sale
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

25,00 €
In stock
RRP
27,00 €
-7% Discount
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
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 VForce 3i Honda CR85 / Derbi
Article no.: S6-3219005

Reed Valve Stage6 VForce 3i Honda CR85 / Derbi

139,00 €
In stock
RRP
221,00 €
-37% Discount
Sale
MotoForce
Reed Valve MotoForce Derbi
Article no.: MF35.19301

Reed Valve MotoForce Derbi

9,60 €
In stock
MotoForce
Reed Valve Motoforce Piaggio / Gilera / Vespa / Derbi / Aprilia
Article no.: MF35.14000
1

Reed Valve Motoforce Piaggio / Gilera / Vespa / Derbi / Aprilia

13,00 €
In stock
MotoForce
Reed Valve Motoforce Peugeot vertical / Honda
Article no.: MF35.17500
3

Reed Valve Motoforce Peugeot vertical / Honda

17,50 €
In stock
RRP
19,00 €
-8% Discount
MotoForce
Reed Valve MotoForce AM6
Article no.: MF35.18805
14

Reed Valve MotoForce AM6

16,50 €
In stock
MotoForce Racing
Reed Valve MotoForce Racing Evo AM6 / Derbi
Article no.: MF35.18902

Reed Valve MotoForce Racing Evo AM6 / Derbi

50,50 €
In stock
MotoForce Racing
Reed Valve Motoforce Racing Piaggio
Article no.: MF35.14003
5

Reed Valve Motoforce Racing Piaggio

37,00 €
In stock
RRP
46,50 €
-20% Discount
Sale
MotoForce Racing
Reed Valve MotoForce Racing AM6 / Derbi
Article no.: MF35.18901

Reed Valve MotoForce Racing AM6 / Derbi

18,00 €
In stock
MotoForce Racing
Intake Kit Motoforce Racing 35mm PWK / VHST Piaggio 50-180cc
Article no.: MF36.14001
10

Intake Kit Motoforce Racing 35mm PWK / VHST Piaggio 50-180cc

83,00 €
In stock
MotoForce Racing
Intake Kit Motoforce Racing PWK 21mm Piaggio 50 - 180
Article no.: MF66.164001

Intake Kit Motoforce Racing PWK 21mm Piaggio 50 - 180

136,80 €
In stock
RRP
149,00 €
-8% Discount
Doppler
Reed Valve Spacer Doppler 5mm red Derbi / Minarelli AM6
Article no.: CGN494635

Reed Valve Spacer Doppler 5mm red Derbi / Minarelli AM6

12,00 €
In stock
RRP
15,00 €
-20% Discount
Sale
Doppler
Reed Valve Spacer Doppler 5mm black Derbi / Minarelli AM6
Article no.: CGN494634

Reed Valve Spacer Doppler 5mm black Derbi / Minarelli AM6

13,00 €
In stock
RRP
15,00 €
-13% Discount
Sale
CBE
Stuffer Insert f. reed valve Bidalot G2B CBE d.25mm
Article no.: CBE-DIFF-G2B-25

Stuffer Insert f. reed valve Bidalot G2B CBE d.25mm

17,00 €
In stock
23,00 €
-26% Discount
Sale
Italkit
Reed Valve + Intake Manifold Italkit W-Force Aprilia RS125 / Rotax 122
Article no.: IKLC01125

Reed Valve + Intake Manifold Italkit W-Force Aprilia RS125 / Rotax 122

114,00 €
In stock
Italkit
Reed Valve Italkit AM6
Article no.: IKLC122
2

Reed Valve Italkit AM6

33,50 €
In stock
Derbi
Reed Valve Derbi Euro 3 (D50B0)
Article no.: OE-DE847092

Reed Valve Derbi Euro 3 (D50B0)

42,00 €
In stock
45,00 €
-7% Discount
Sale
Malossi
Reed Valve Malossi VL2 MBK 51
Article no.: M273021.K0
3

Reed Valve Malossi VL2 MBK 51

26,00 €
In stock
Piaggio
Reed Valve original Piaggio Zip (OEM : 82775R)
Article no.: OE-PIA82775R
2

Reed Valve original Piaggio Zip (OEM : 82775R)

33,50 €
In stock
Piaggio
Reed Valve original Piaggio Zip (OEM : 82774R)
Article no.: OE-PIA82774R

Reed Valve original Piaggio Zip (OEM : 82774R)

28,50 €
In stock
33,00 €
-14% Discount
Yamaha
Reed Valve Yamaha BW's / Slider
Article no.: OE-MAL2EX136100000

Reed Valve Yamaha BW's / Slider

56,00 €
In stock
MXS Custom
Intake Kit Stage6 Bigvalve PHBG 21mm Peugeot Speedfight
Article no.: MS-PKMADMIPEUG

Intake Kit Stage6 Bigvalve PHBG 21mm Peugeot Speedfight

114,30 €
In stock
127,00 €
-10% Set-Rabatt
Standard Parts
Reed Valve MBK 51
Article no.: CGN4067
1

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 Derbi
Article no.: CGN440168

Reed Petals for Doppler reed valve ER2 fiberglass Derbi

11,00 €
In stock
Doppler
Reed Petals Doppler S2R fiberglass Minarelli / China 2T
Article no.: CGN440166
2

Reed Petals Doppler S2R fiberglass Minarelli / China 2T

10,50 €
In stock
RRP
11,00 €
-5% Discount
Doppler
Reed Petals Doppler reed valve S2R Peugeot stehend
Article no.: CGN440165
1

Reed Petals Doppler reed valve S2R Peugeot stehend

11,00 €
In stock
Easyboost
Reed Valve Spacer Easyboost 5mm Yamaha Aerox
Article no.: EB016
2

Reed Valve Spacer Easyboost 5mm Yamaha Aerox

16,50 €
In stock
Easyboost
Reed Valve Spacer Easyboost 5mm AM6 / Derbi Euro 2 / 3 / 4
Article no.: EB015
2

Reed Valve Spacer Easyboost 5mm AM6 / Derbi Euro 2 / 3 / 4

16,50 €
In stock
Polini
Reed Valve Polini Piaggio
Article no.: P213.0055
3

Reed Valve Polini Piaggio

70,00 €
In stock
RRP
78,00 €
-10% Discount
MVT
Intake Kit MVT 24-28mm AM6
Article no.: MVT-CL10
2

Intake Kit MVT 24-28mm AM6

43,00 €
In stock
RRP
64,00 €
-33% Discount
Sale
Malossi
Reed Valve Spacer Malossi 5mm Minarelli horizontal
Article no.: M2013224
8

Reed Valve Spacer Malossi 5mm Minarelli horizontal

17,50 €
In stock
RRP
20,00 €
-13% Discount
MVT
Intake Kit MVT Racing 35mm PWK / VHST Derbi EBE / D50B0
Article no.: MVT-CL20
4

Intake Kit MVT Racing 35mm PWK / VHST Derbi EBE / D50B0

54,00 €
In stock
RRP
64,00 €
-16% Discount
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123

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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