H&R R20050950 2.0" ID Linear Race Spring 5" Free Length 950 lbs/in

The H&R R20050950 is a precision-engineered 2.00" inner diameter linear race spring built for demanding motorsport applications. With a 5" free length and a stiff 950 lbs/in spring rate, this spring is purpose-built for coilover suspension systems used in road racing, time attack, autocross, and custom motorsport builds where consistent, predictable chassis behavior is non-negotiable.

Key Features:

• Spring Rate: 950 lbs/in (167 N/mm) — linear characteristic for consistent, tunable response
• Inner Diameter: 2.00" (50.8 mm)
• Free Length: 5.0" (127 mm)
• Block Height: 2.53" (64 mm)
• Load at Block: 2,358 lbs
• Weight: 1.8 lbs (830 g)
• Manufactured from special lightweight (hf) 54SiCr6 high-tensile spring steel — the same specification used in DTM and World Rally Championship applications
• High-strength alloy allows thinner wire thickness, delivering approximately 15% less weight and 10% more travel compared to conventional spring steel alternatives
• Sold individually

Every H&R race spring is manufactured entirely in-house at H&R's ISO 9001-certified facility in Lennestadt, Germany. Each spring undergoes 100% testing before shipment, and the shot-peened finish extends service life by more than 200%. H&R is an Official Technical Partner of BMW M Motorsport, supplying race springs used in global GT and endurance racing competition.