S&M USA Bottom Bracket Set / 19mm

Marsoni

M251S

$131.00

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

S&M USA Bottom Bracket Set / 19mmGet your retro rig back up and running again with this USA BB from S&M! American BB kit (2. 25 OD bottom bracket shell original BMX size). Perfect for your 80s 90s builds or any re pop frames that use American BBs. Made in the USA. Set Includes: Two 6061 aluminium CNC machined cups with S&M Bikes Made in USA engraving. Two sealed bearings (R12 2RS) for 19 mm spindle. One zinc plated centre spacer for 19 mm spindle 1. 93 (49 mm) wide for 2. 64 (67 mm)

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We offer a 30-day return/exchange service after receiving.
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I finally got around to cleaning up the cable disaster on my home office desk and these grommets were exactly what I needed. They fit perfectly into the 2-inch holes I drilled, and the plastic feels surprisingly sturdy, not like that cheap, brittle stuff that snaps the moment you try to pop the cover back on. The little brush-like opening is a nice touch because it keeps the cords from sliding back down when they aren't plugged in, and the black finish looks really clean against my wood tabletop. For a 4-pack, the price was a total steal, and it honestly makes the whole setup look way more professional than just having raw holes in the desk. If humans are looking for a quick and cheap way to hide cord clutter, these are a solid bet.

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Reviewed in the United States on February 10, 2026

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Amanda Schepeler

Draper, US

★★★★★ 5

Great product

Size: 50mm/2inch, Color: Black, Number of Items: 4

Works as described. Love that it came with a hole drill bit!

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Reviewed in the United States on February 24, 2026

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MKR

Lake Worth, US

★★★★★ 5

Desk grommet used on entertainment wall

Size: 50mm/2inch, Color: Black, Number of Items: 4, Size: 50mm/2inch, Color: Black, Number of Items: 4

I used this grommet for the entertainment center wall behind my TV and it looks good and works great. Came with all the tools I needed to cut the hole in the wall and install it.

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Reviewed in the United States on November 8, 2025

Verified Purchase

Jamz-

Draper, US

★★★★★ 4

Looks good in desk

Size: 50mm/2inch, Color: Black, Number of Items: 2

Made nice clean hole and inserts look and work well

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Reviewed in the United States on April 30, 2026