Shock Absorber Type 643 Competition QS

Marsoni

M251S

$682.50

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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I purchased this 4-inch foam floor mattress for when grandchildren stay over. This is my 2nd one, since zi have 2 grandchildren. I don't have room for beds or bunk beds, but I have a space where I can store these. I slept on it myself several nights in a row when I had company and I found it to be much better than sleeping on an air bed. I purchased mattress covers and fitted sheets that fit the exact dimensions of the mattress and I am happy to be able to provide a perfect sleeping setup for my 2 grandchildren! If you have a place to store the mattress when it's folded (25 inches high, 31 inches wide, 12 inches deep) I recommend a 4-inch thick foam floor mattress over an air bed. In my home it is the perfect solution! Follow all the directions for allowing the mattress to reach its full thickness. It is vacuum packed and needs several hours (almost 2 days) to expand.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on January 17, 2026

Verified Purchase

Susan Barnes

Charlottesville, US

★★★★★ 1

Blow up beds are better

Color: Grey, Size: Queen

Blow up beds are better. These are barely thicker than a sleeping bag.

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Reviewed in the United States on December 9, 2025