BBS RS 17" to 18" 34-Hole Up-Conversion Kit

Marsoni

M251S

$619.50

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

BBS RS 17" to 18" 34-Hole Up-Conversion KitUp convert your 17 inch, 34 hole BBS RS to 18 inch, 34 hole with our up conversion kit! This kit includes one lip and barrel, thirty four of our exclusive M7x32 BFI ARP ultra high strength stainless steel wheel bolts, thirty four M7x1 Dacromet coated nuts, one valve stem of your choice (tall or short) and one tube of sealant (per wheel set). This is the most comprehensive wheel up convert kit on the market! Conversion kit barrels and lips are made

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Your BBS RS 17" to 18" 34-Hole Up-Conversion Kit orders ship within 1-2 business days.

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Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
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I just received this duvet and I couldn’t be happier. Right out of the packaging, the first thing I noticed was how incredibly soft the fabric felt—no stiffness or “breaking in” period needed. It has that cozy, breathable cotton feel that makes climbing into bed even more inviting. One feature I especially appreciate is the zipper closure at the bottom. It makes inserting and removing the duvet so much easier compared to traditional button closures, and it keeps everything securely in place without any gaps. The overall quality feels great, from the stitching to the fabric itself. It’s lightweight yet still feels durable, and it adds a clean, comfortable look to my bed. The one thing I would suggest is make sure you select the right "white" color. There's a bright white that I am going to order as the white I ordered "Natural" has a bit of a tan color in it against a bright white.

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Reviewed in the United States on April 9, 2026

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Tammy

Alexandria, US

★★★★★ 5

Clean crisp and easy to put on.

Size: King (104" X 90"), Color: 01 - Natural White (No Comforter)

Great price point for a 100% cotton duvet. Washes and dries well and the white is clean and crisp. I love the zipper closure and the corner ties. Very easy to put on.

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Reviewed in the United States on May 24, 2026

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Rachel W.

Waukegan, US

★★★★★ 5

Hotel-Quality Bedding Without the Price Tag

Size: Queen (90" X 90"), Color: 01 - Natural White (No Comforter)

I recently refreshed my second bedroom and needed new bedding, and this duvet cover came recommended by a friend who’s an interior designer for hotels—so my expectations were high. It absolutely delivered. The fabric is incredibly soft and comfortable, and it instantly gave the room that clean, neutral, fresh look I was going for. It truly looks high-end and elevated, but without the high-end price, which was a huge win. I’ve already shared the link with friends and family because it’s just that good. If you’re looking to upgrade your space without breaking the bank, this is a no-brainer. Highly recommend!

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Reviewed in the United States on April 16, 2026

Verified Purchase

Chy L.

Houston, US

★★★★★ 4

Love the color!

Size: King (104" X 90"), Color: 09 - Sage Green (No Comforter)

I really like this cover! It’s not super soft but it’s still nice and looks good.

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Reviewed in the United States on May 1, 2026