Product overview OHLINS STX Performance Shock is cataloged under Shocks. Select the exact option and part number required for the intended use. Supplier catalog description STX Performance Shock Features STX single-tube design Monotube shock with internal reservoir High-pressure nitrogen gas-charged 46 mm piston diameter Adjustable rebound damping Hose-mounted hydraulic preload adjuster Multiple spring rates available to accommodate a wide range of riders Top-level comfort, rideability, and performance Hard-anodized precision CNC-machined components Low-friction shaft and sealhead design Fully serviceable and repairable Product details and identifiers Distributor part Manufacturer part UPC / EAN Option Origin Package 1310-2402 HD 515 Not provided Shock / 13.5" / STX Performance (HD515) SE 8.4 lb; 23.25 × 10 × 7 INCH 1310-2521 HD 517 Not provided Shock / 13.5" / Fully Adjustable / STX Pro (HD517) SE 10.8 lb; 27.25 × 10.5 × 8.5 INCH 1310-2522 HD 516 Not provided Shock / 13.5" / STX Performance / Preload Side Cover / (HD516) SE 8.6 lb; 23.25 × 10 × 7 INCH 1310-2401 HD 513 Not provided Shock / 12.5" / STX Performance (HD513) SE 8.3 lb; 23.5 × 10.25 × 7 INCH 1310-2420 HD 514 Not provided Shock / 12.5" / STX Performance / Preload Side Cover (HD514) SE 0.01 lb; 0.01 × 0.01 × 0.01 INCH Specifications Brand OHLINS Product type Shocks Units Each Selectable variants 5 References Parts Unlimited catalog data and exact Parts API identity fields; exact distributor and manufacturer identifiers are listed above. Compatibility Vehicle fitment does not apply to this apparel product. Confirm the selected size, color, and part number before ordering. Notes and disclosures Images may show a representative option. Confirm the exact size, color, finish, quantity, and part number shown for the selected variant.