Ferrea 04-10 Honda CRF 250R 18.50mm OD 13.0mm ID Single Valve Springs - Set of 2

These are Ferrea single valve springs for the 2004 through 2010 Honda CRF 250R. They are designed to replace the stock valve springs, helping to ensure proper valve operation within the engine.

Ferrea makes these springs with specific dimensions: an 18.50mm outer diameter and a 13.0mm inner diameter. This set includes two springs, which is what you'd typically need for a single cylinder application like this dirt bike. Proper valve spring function is critical for preventing valve float, especially at higher RPMs, and for ensuring the valves close securely.