Scepter Spring - Option Spring MED 49mm

Harddrive Scepter Spring in medium 49mm rate for V-twin motorcycles. This is an option spring designed to fine-tune suspension feel when paired with a primary spring, commonly used in Harley-Davidson and Indian Motorcycle rear suspension systems.

Features

• 49mm spring rate (medium)
• Option spring for dual-spring setups
• V-twin motorcycle application

Specifications

• Brand: Harddrive
• Manufacturer Part #: R3050078
• UPC: 191361137044
• Spring Rate: 49mm (medium)
• Length: 35 in
• Width: 5 in
• Height: 4.25 in
• Weight: 5.9 lbs
• Country of Origin: China (Taiwan)

Fitment

Fits V-twin motorcycles with dual-spring rear suspension systems. Verify your current spring rate before ordering to ensure compatibility.

Frequently Asked Questions

What does an option spring do?

Option springs work alongside a primary spring to adjust preload, softness, or stiffness. They're installed in parallel or series depending on your suspension design.

How do I know if I need a 49mm spring?

Check your bike's current spring rate and suspension manual. A 49mm medium rate suits mid-weight riders or moderate load conditions.

Is this a complete spring kit?

No — this is a single option spring. You'll need a primary spring and may need shims or spacers depending on your bike's setup.

Can I use this on any V-twin motorcycle?

Option springs vary by bike model and suspension type. Verify fitment with your manufacturer or suspension shop before purchase.