RacingBro Shicane HLR Sport Series Shock - Kawasaki Ninja 250/300 ('08+) Engine Accessories This is the same method

This is the same method used in high-end motorsports

GY6 150cc Long Case Engine

but it still requires maintenance like all other shocks

Yamaha C3 4T

RacingBro Shicane HLR Sport Series Shock - Kawasaki Ninja 250/300 ('08+) Engine Accessories This is the same methodRacingBro Shicane HLR Sport Series Shock is a high end performance shock designed to fit the Kawasaki Ninja 250 & Ninja 300 2008+ for street and racing applications. This shock is fully adjustable and tunable featuring a fully serviceable SAV dampening system. It can be adjusted for high and low speed compression dampening while also having wide range low speed rebound adjustment. The spring provided is a high strength steel that has a linear spring