Black Type III hard coat anodized finish. Stock ride height. 45mm billet aluminum twin tube design with 25mm piston reacts quickly for improved fluid flow. Deflective disc valving self-adjusts to frequency and ensures controlled performance. Low friction sealing system and sliding bearings for improved performance and feel. Three-step external knob adjustments allow fine-tuning of rebound. Stainless steel tie bar design and construction. In standard length for optimum ride quality and performance. Note: Standard duty is recommended for up to 250lbs. (113kg) total loaded weight. Heavy Duty application is recommended for over 250lbs. (113kg) rider/passenger total weight. Also, consider heavy-duty if the majority of your riding is two up with a passenger and/or gear.