Speedwerx Hypershift Kit made for Arctic Cat. Kit is for 0-5000ft Elevation.

P/N# 7639-861

Replaced by P/N# 8639-107

Includes:

• H5 Alloy primary spring
• H5 Alloy secondary spring
• Machined weights
• Tip weight adjustment kit
• Thread lock

Fits the following Arctic Cat Models:

• 2018 ZR 8000