Wiseco Yamaha PW8091-06/BW8086-90 (649M04900) Piston

Wiseco Yamaha PW8091-06/BW8086-90 (649M04900) Piston

Marsoni

M251S

$100.89

Get it in 3 business days with 1 day shipping. Friday, May 29

Wiseco Yamaha PW8091-06/BW8086-90 (649M04900) PistonClassic Forged 2 stroke pistons are perfect for those looking to rebuild their 2 stroke engine with reliable, high quality components. These pistons cover a wide range of Powersports rebuilds, including vintage motocross models, classic street bikes, and snowmobiles. The forged material improves tensile strength over cast pistons, ensuring refreshed performance on the track or the trail. This Part Fits: Year Make Model Submodel 1986 1988,1990 Yamaha

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Update: Different color packs fit differently. I've purchased two packages, one all-black and one black with the colorful waistbands. The all-black are a little smaller. IMO the all-black run a half to a full size small, and the black with the colorful waistbands run true to size. Listen, all of our bodies and preferences are so different, but these are perfect for my body and my fit preference. They hit at my bellybutton and I would describe the length as short-boyshorts, but not hipsters. Most importantly, they're cotton, which my body reacts much better to these days.

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Reviewed in the United States on February 13, 2026

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Tat Phoenix

Lowell, US

★★★★★ 5

Good quality

Size: Medium, Color: Set-unbl

They fit perfectly and seem well made

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Reviewed in the United States on February 22, 2026

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Kate

Cuba, US

★★★★★ 5

Will be buying more

Size: X-Large, Color: Set-unbl

LOVE THESE! They’re so comfortable and stretchy.

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Reviewed in the United States on April 24, 2026

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Cme411

New York, US

★★★★★ 3

They're ok

Size: Large, Color: Set-mu2

These are ok. I'm 5'6", 150lbs. I got a large. The colors are fun. The waist band is comfortable, fits well, doesn't dig in, and sits high enough to not affect a my C-section scar, but they constantly ride up.

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Reviewed in the United States on March 12, 2026

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Anonymous

Fort Morgan, US

★★★★★ 5

Cotton panties need to be the standard- these are amazing!

Color: C-multicolor(6 Pack), Size: Medium

SO comfortable!! I’ve never owned a pair of 95-100% cotton underwear and I’m never going back. These are so breathable, soft and well made for an affordable price! The lacey detail is so cute and feminine. I got the mediums cause I don’t like my underwear squeezing me but don’t want them too loose either. After washing and drying they fit nicely. They hit at waist as well which I love. Would definitely recommend!

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Reviewed in the United States on May 28, 2026