Race Tech High Performance Fork Springs - Spring 0.90kg — Harley-Davidson Night Rod Special, V-Rod Muscle, Street Rod (2006-2012)

Race Tech high-performance fork springs rated at 0.90kg, manufactured from chrome silicon wire with shot-peening and heat treatment for durability. These springs eliminate the under-springing common on sportbikes, restoring balance and predictability to the chassis.

Features

• Chrome silicon wire construction
• Shot-peened and heat-treated
• High stiffness-to-mass ratio
• No sacking-out during use
• Accurate rate tolerances

Specifications

• Brand: Race Tech
• Manufacturer Part #: FRSP S3827090
• Spring Rate: 0.90kg
• Weight: 3.0784 lbs

Frequently Asked Questions

How do I know what spring rate I need?

Spring rate depends on your weight, riding style, and bike model. Race Tech offers over 500 rates — consult their spring rate chart or contact support with your bike specs.

Will stiffer springs make my ride harsher?

Properly rated springs improve control without harshness. Over-stiff springs (too high a rate for your weight) will feel harsh; under-sprung bikes feel vague and unpredictable.

Are these a direct replacement for stock forks?

Yes — these bolt into your stock fork lowers. No modifications needed.

What makes these different from budget springs?

Race Tech springs are shot-peened and heat-treated to eliminate sacking-out (loss of preload over time) and maintain consistent rates throughout their life.