Shock Absorber Type 643 Competition PS

Marsoni

M251S

$627.50

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

Shock Absorber Type 643 Competition PSSwiveling, 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.
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Purchased 2 sets of these to make a folding wing on my workbench. Didn’t expect great quality but did expect 90 degrees. Installed and the end of my 27” wing is 25mm higher than the fixed end. Measured bracket and hypotenuse and ran some quick cosine to discover the bracket is actually 91.286degrees. There is zero adjustment capability on these. Buyer beware

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Reviewed in the United States on February 14, 2026