Shock Absorber Type 642 Competition

Marsoni

M251S

$548.48

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

Shock Absorber Type 642 CompetitionThe ultimate in motorcycle shock absorbers: the upper mount is a precision milled component that connects to the compression reservoir and houses the high and low speed compression adjusters. With 22 clicks each, they can be dialed precisely to your needs. A pressure relief valve prevents hydraulic lock at maximum compression speed and mitigates uncontrolled jolts. Rebound is externally adjustable in 22 clicks, and spring preload is steplessly

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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Edit: Still holding proper pressure at 2-months !!! Had a slow leak where my tire went from 44psi to ~18psi over 2-3 days… Dashboard light would let me know every few days that I had a tire problem and I would inflate the tire back up to 44psi… Anyway, I used this product and filled air back to 44 psi and it’s held the pressure for a month already !!!! Be sure to deflate tire to ~15 PSI before adding the product… it only took about 30 seconds to empty the container into my tire with the tire pressure low. Very happy with this product !!!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 6, 2026

Verified Purchase

Kindle Customer

Port Orchard, US

★★★★★ 5

Excellent stuff!

Style: 18oz

Used this on a Z-Trac with a flat and it fixed it and has held up for over 8 months.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 11, 2026