Shock Absorber Type 643 Competition QS

Marsoni

M251S

$712.50

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

Shock Absorber Type 643 Competition QSSwiveling, diagonally mounted compression reservoir. The reservoir is mounted at an angle and can swivel, offering numerous installation options on space constrained bikes. A solid milled upper mount integrates the high and low speed compression adjusters. Both compression and rebound provide 22 clicks of adjustment for uncompromised fine tuning. A pressure control valve prevents hydraulic blocking and tames sudden impacts. Spring preload is

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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]
Please click here for more details>>> Return & Exchange Policy

With 4 cats and 2 dogs and using my Eufy RoboVac 11S Max twice a day until it dies, the brush and filters don't seem to last long. These replacement parts fit perfectly, but do not seem to have the same lifespan as the originals - would have to do the math to see if it would be worth buying original replacements, but that is probably case dependent. Overall happy, but took a star away for shorter wear life.

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Reviewed in the United States on December 1, 2025

Verified Purchase

Henry Holst

Battle Creek, US

★★★★★ 5

Excellent service

Size: 19pcs

Received parts in no time. Parts fit perfectly. Vacuum cleaner is back in operation at a very low price.

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Reviewed in the United States on May 19, 2026

Verified Purchase

Sara Smithie

Fort Morgan, US

★★★★★ 5

Excellent Deal

Size: Eufy A-21Packs

Great deal - pricing is fantastic making it easy to keep my little robo-vaccum running smoothly. The replacement parts are super easy to click into place - and having these multi packs will last a long time. Packaging is secure and the delivery was quick. The brush quality is excellent and function well with the exsisting parts already in place. These are not 'remakes' or 'versions' but an exact match to the originals. The replacement parts keep the same level of low noise and look intact. No guessing required. I'd recommend these for anyone with an Eufy RoboVac.

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Reviewed in the United States on January 14, 2026

Verified Purchase

Michael & Aimee Vaughn

Phoenix, US

★★★★★ 5

Stock up!

Size: Eufy A-21Packs

Exactly what I needed! Works great!

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Reviewed in the United States on May 18, 2026

Verified Purchase

James T.

Birmingham, US

★★★★★ 5

Great value

Size: Eufy B-18Packs

This 18-pack of replacement parts for the eufy L50 and L60 robot vacuums is very handy. It includes everything needed to keep the vacuum running smoothly, making maintenance easy and convenient. Great value for anyone who owns these models! better price than the OEM.

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Reviewed in the United States on March 30, 2026