Is Polini Reed Valve "Big Valve" Yamaha BW's / Slider / MBK compatible with my scooter?

Please check by brand (Polini), model (P215.0410), and engine type. Not sure? Contact us — we’ll verify compatibility.

What is the price of Polini Reed Valve "Big Valve" Yamaha BW's / Slider / MBK?

The current price is 132.30€. All prices are up to date as of 02 2026.

Is Polini Reed Valve "Big Valve" Yamaha BW's / Slider / MBK in stock?

If available in our LV stock — ships within 24h. From EU stock it usually takes 4–9 days to arrive.

Is Polini Reed Valve "Big Valve" Yamaha BW's / Slider / MBK an original Polini part?

Yes, we sell OEM and performance parts. The type of this product is listed in the description.

Does Polini Reed Valve "Big Valve" Yamaha BW's / Slider / MBK come with warranty?

Yes, all items include manufacturer warranty according to the rules.

How fast do you deliver Polini Reed Valve "Big Valve" Yamaha BW's / Slider / MBK?

Ships within 24h from LV stock. From EU stock it takes 4–9 days to Latvia, then 1–2 days in the Baltics.

Which payment options are available for Polini Reed Valve "Big Valve" Yamaha BW's / Slider / MBK?

We accept bank cards, online banking, and invoice payments.

What is the SKU or article number of Polini Reed Valve "Big Valve" Yamaha BW's / Slider / MBK?

Product SKU: P215.0410. It is also shown in description and specs.

Can I return Polini Reed Valve "Big Valve" Yamaha BW's / Slider / MBK if it doesn’t fit?

Yes, unused items can be returned within 14 days according to our terms.

Can I order Polini Reed Valve "Big Valve" Yamaha BW's / Slider / MBK if it’s not in local stock?

Yes, pre-orders are possible. Usually 4–9 days to LV warehouse (depends on supplier).

What is the current discount for Polini Reed Valve "Big Valve" Yamaha BW's / Slider / MBK?

Polini Reed Valve "Big Valve" Yamaha BW's / Slider / MBK is now available with a special discount in 02 2026. Price: 132.30€.

How long is the discount for Polini Reed Valve "Big Valve" Yamaha BW's / Slider / MBK valid?

The discount is valid for a limited time in 02 2026, until the promotion ends or stock runs out.

Is the Polini Reed Valve "Big Valve" Yamaha BW's / Slider / MBK discount automatically applied in the cart?

Yes, the promo price 132.30€ is visible immediately and applied automatically at checkout.

Discount 22.10€ Reward Points: 13

P215.0410

Polini

Polini Reed Valve "Big Valve" Yamaha BW's / Slider / MBK

Delivery from German Warehouse - Pirmdien

Available to order

132.30€ 154.40€

Price in reward points: 1313

Polini Intake Kit "Big Valve" 17.5 / 21mm MBK Booster / Stunt, HQ 4-petal racing valve for engines with original 2-petal valve.

This reed valve has a large cross section allowing for increased flow area for the fuel-air-mixture. As a result, cylinder filling is improved which in turn leads better engine reponse and performance at mid and high rpm.

The kit includes:

- reed valve Evolution with carbon fiber reed petals
- aluminium mount for reed block
- rubber intake manifold 17.5mm / 21mm (type Dell'Orto)

Particularly suited for racing and "Hyper Racing" cylinders.

Technical details

Article no.: P215.0410
Brand: Polini
Colour: Silver
Colour version: Aluminium
Diameter carburetor: 21mm
EAN: 8054705070648

Manifold connection: 24mm
Petal material: Carbon
Petal Thickness: 0.35 mm
Product type: Intake kit
Variant: 21 mm
Weight: 0,34 kg

Vehicle

Adly (Her Chee): Rapido 50cc;
Aprilia: Amico 50cc AC (1991 - 1992);Amico 50cc AC (after 1993);Amico GL 50cc AC;Amico Sport 50cc AC;SR 50cc AC (before 1994) - Minarelli vertical;
Italjet: Bazooka;Pista 2 50cc AC;Pista 50cc AC;Scoop 50cc;Yankee 50cc;

MBK: Booster 1992 - 1999;Booster after 2004;Booster before 2004;Booster Next Generation after 1999;Booster Next Generation before 1999;Booster One;Booster Track;Rocket;Stunt 50cc AC;Stunt 50cc AC CAT (after 2004);Stunt Naked 50cc AC;
None: None
Yamaha: BW's 50cc AC;BW's 50cc AC (after 2004);BW's Bump 50cc AC;BW's Easy 50cc 2013;BW's NG 50cc AC (after 1999);BW's NG 50cc AC (before 1999);Slider 50cc AC (before 2004);Slider 50cc AC CAT (after 2004);Spy 50cc AC;Target 50cc;Zuma 50cc AC;Zuma II 50cc AC;

Individual approach to each order

Return and exchange of goods within 14 days

Loyalty program

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