- Black springs - Clear body - S: Single tube body - Piston diameter: 36mm - D: Monotube high pressure gas type shock absorber with internal reservoir in the main body - R1: Adjustable rebound damping. Adjuster wheel above the end eye - L: Adjustable length - Length: 336 +10/-0 mm - Stroke: 77 mm - Rate N/mm: progressive 16-26 N/mm - Position: rear - Mounted spring: 00480-02 - Packaging unit: pair - ABE approved. The STX36 is a shock that''s been around the block and it paid it''s dues when it comes to performance and durability. Especially for the cruiser market when taking riding a step up; the STX36 is an excellent investment when suspension characteristics are important to you.