H&R 29120-1 Street Performance Coilovers Mono-Tube Adjustable Lowering Kit

The H&R 29120-1 Street Performance Coilovers deliver a premium suspension upgrade engineered specifically for street use, offering an outstanding balance of improved handling and daily driver comfort. Unlike conventional twin-tube shock absorbers, these coilovers are built around an advanced mono-tube gas shock construction that provides sharper response, better heat dissipation, and more consistent damping performance.

H&R—widely recognized as the originator of the true street coilover system—hand-assembles each kit in Germany under strict ISO 9001 and German TÜV standards. Every shock is custom valved to work in precise harmony with a precision-wound progressive rate spring, resulting in a finely tuned suspension system that excels in both everyday driving and spirited performance use.

Key Features:

• Mono-tube gas shock construction for precise handling response and superior thermal performance
• Adjustable ride height — lowers an average of 1.0 to 2.5 inches via fully threaded shock body
• Progressive rate springs individually matched and tuned to each shock's valving
• Threaded spring perch allows easy, virtually infinite ride height fine-tuning
• Lowers center of gravity for improved cornering stability and vehicle control
• Spanner wrenches included for straightforward height adjustment
• Hand-assembled in Germany to ISO 9001 and TÜV standards
• Suitable for daily drivers and performance enthusiasts alike

The fully threaded shock body design allows the spring perch to be moved up or down to dial in your preferred ride height, letting you optimize both appearance and handling to your personal preference. Whether you're looking for a weekend canyon carver or a refined daily driver with a sportier stance, the H&R 29120-1 Street Performance Coilover kit delivers an exceptional suspension solution.