Surron Heavy duty Lift Linkage with high precision bearings Altering suspension geometry will completely shift the bikes geometry, handling, and shocks performance.  We've spent hours modeling, testing, tweaking variations to modify the bikes height while maintaining an almost stock geometry.   Max recommended lift for all setups is 20mm  20mm lift is recommended for 18/21 AND 19/21 tire setups or bikes with conversion front ends. 20mm lift  (.75 inches) Maintains stock suspension relation to center of triangle while increasing overall bike height Precision 5X milled from billet 7075 ABEC 9 High Precision Needle Bearings pre greased with Motorex lube For precision fitment use our Bearing Bolt Kit for best results. (Titanium bolts bend under normal use, Steel is recommended.) x4 Acetal captive sealing washers 18mm Bearings, 2mm larger than stock Improves performance and aesthetics Fabricado en casa MADE IN CALIFORNIA USA