Aftermarket spring for Marzocchi 40mm front fork with aluminum tubes. High quality chrome-silicon wire. Cold coiled, heat treated and pre-set 3x for optimal performance and durability. Only suitable for the Marzocchi 40mm fork with aluminum tubes.

Which one to choose?
* replace 1 original spring with a Jitsie 4.5N/mm spring - rider weight 80 to 95kg
* replace both original springs with Jitsie 4.5N/mm springs - rider weight +95kg