Spring preload adjuster tool when excess spring tension prevents rotation by hand.

Made to fit shocks manufactured by JRi Shocks for vehicles & motorcycles fitted with a 5/8th diameter shaft. Does not suit Harley Davidson FLH touring model shocks.

Will also fit other shock made by other manufacturers that have spring seat adjustment hole diameter of 1/4 inch or 6.35mm.

NOTE: Grub screw if fitted must be loosened before adjustment of spring preload/ride height adjustment or damage will occur to thread of shock body. We highly advise any dirt buildup around the threads be cleaned first before making adjustments.

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