KPMI Compression Releases - Release 2/PK Evos — Harley-Davidson Electra Glide Classic, Softail Custom, Softail Heritage Classic (1984-1999)

KPMI compression releases for V-twin Harley and Indian engines, sold in pairs to reduce hot-start strain on the battery and starter motor. These M10 x 1 threaded valves bleed cylinder pressure before cranking for easier cold starts.

Features

• M10 x 1 thread pitch
• 5-7 Newton's closing force resistance
• Custom molded knobs for cool touch and easy operation
• Reduces hot-start issues and starter load
• Sold in pairs

Specifications

• Brand: KPMI
• Manufacturer Part #: 20-21250
• Thread Pitch: M10 x 1
• Quantity: 2 per pack
• Weight: 0.09 lbs

Fitment

Fits V-twin motorcycles including Harley-Davidson and Indian Motorcycle models with M10 x 1 cylinder head ports.

Frequently Asked Questions

What do compression releases do?

They bleed cylinder pressure before cranking, reducing load on the starter motor and battery during hot starts and cold weather operation.

How many do I need?

You need one per cylinder. This 2-pack covers both cylinders on a V-twin.

Are these street legal?

Yes. Compression releases are permitted on street bikes and improve reliability without affecting emissions or performance.

Will these fit my Harley or Indian?

If your bike has M10 x 1 cylinder head ports, yes. Check your engine specs or consult KPMI compatibility before ordering.