Box One Stem Lock 1-1/8th Inch

Marsoni

M251S

$34.95

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

Box One Stem Lock 1-1/8th InchBox Components stem steerer lock suitable for straight 1 1 8th inch steerer tubes. Cold forged and fully CNC machined from a number of high strength aluminium alloys, Box One Stem Locks offer peace of mind and a level of added protection against losing your front wheel and fork legs in the event of a broken steerer tube. Material: 7075 T6 (post), 2014 T651 (base) Weight: 61 grams , 72 grams

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Fast: 2-3 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.
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MYHusband does my 2015 bmw x5 oil change usually it’s an extra charge for this piece to get this done at the mechanics So he orders it through Amazon and gets the oil changed in no time no extra charge. Works great. Fits perfectly. Amazing quality. Worth the money. Easy installation finish the job quick

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Reviewed in the United States on June 5, 2025

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TMJ

Bozeman, US

★★★★★ 5

Perfect fit

Color: Black

Perfect

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Reviewed in the United States on January 26, 2026

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brandan

Pawtucket, US

★★★★★ 4

Good cheap product

Color: Black

Works very well but be careful it is a little sloppy on a ratchet wench

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Reviewed in the United States on May 26, 2025

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Billy o

Houston, US

★★★★★ 5

Decent tool

Color: Black

Fit fine worked as described

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Reviewed in the United States on March 13, 2026

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Erick

Los Angeles, US

★★★★★ 5

Worth it if you dont want your oil cap to get damaged.

Color: Black

I used to use a regular filter clamp form by oil filter cap and it was damaging it. I bought this and it was definitely worth it. If anyone is wondering I have a 2007 bmw 335i e93 and it was a perfect fit.

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Reviewed in the United States on July 22, 2025