Race Tech FRSP444952 Fork Spring 0.52 kg/mm

The Race Tech FRSP444952 is a high-performance motorcycle fork spring with a 0.52 kg/mm (29.0 lb/in) spring rate, engineered for riders who demand precise and consistent front suspension tuning. Sold as a pair, these springs are a direct upgrade over soft or worn stock springs, restoring and improving front-end feel, braking stability, and overall handling.

Race Tech manufactures these springs to a rate accuracy of ±2%, ensuring repeatable suspension setup and predictable behavior across every ride or race session. The chrome silicon steel construction is shot-peened and heat-treated to maximize fatigue resistance and maintain rate consistency over time — no sacking out like lesser springs.

Key Features:

• Spring Rate: 0.52 kg/mm (approximately 29.0 lb/in)
• Rate Accuracy: ±2% for consistent, repeatable suspension tuning
• Material: Chrome silicon steel — shot-peened, heat-treated, and preset
• High stiffness-to-mass ratio for lightweight yet durable construction
• Preset design — will not sag or lose rate over time
• Made in the USA
• Sold as a pair

Race Tech fork springs are widely recognized as one of the best first suspension upgrades for any serious performance rider. Whether you are correcting for rider weight, replacing worn OEM springs, or fine-tuning your setup for specific track or trail conditions, the FRSP444952 delivers the consistency and quality that Race Tech is known for.