Replacement kit that uses modified rear shock absorber components with a DU bushing to substitute Type 1 bike bushings (Fahrradbuchsen). The modified rear shock parts equipped with the DU bushing are designed to replace the Type 1 bushings in compatible frames and linkage. Key benefits - Direct substitute for Type 1 Fahrradbuchsen, simplifying maintenance and part compatibility - DU bushing provides durable, low-friction performance for smoother operation - Keeps the original geometry and fit by using the modified rear shock absorber parts - Reduces wear on adjacent components by consolidating movement into a robust DU bushing assembly Compatibility and specs - Type 1 bicycle bushings - Designed for bikes whose rear suspension uses Type 1 bushings - Uses modified rear shock absorber parts with DU bushing - Intended as a drop-in replacement without altering other subsystems use scenarios - Replacing worn Type 1 bushings on a mountain bike to restore stability - Upgrading an aging bike to a DU bushing equipped rear shock substitute for longer service life - Workshop refurbishment of bikes with Type 1 bushings during routine service and maintenance