Hayden Primary Chain Tensioner - BIG Twins

Hayden primary chain tensioner for big-twin V-twin motorcycles, automatically adjusting tension during acceleration and deceleration to eliminate slack and reduce drivetrain noise. Smoother shifting and a noticeably quieter transmission are the main benefits.

Features

• Automatic tension adjustment during acceleration and deceleration
• Reduces primary chain slack and noise
• Smoother shifting without transmission clunk
• Noticeably smoother ride quality

Specifications

• Brand: Hayden
• Manufacturer Part #: M6-BT01
• Length: 4.45 in
• Width: 7 in
• Height: 2.25 in
• Weight: 1.69 lbs

Fitment

Fits V-twin big-twin motorcycles, including Harley-Davidson and Indian Motorcycle models.

Frequently Asked Questions

What does a primary chain tensioner do?

It automatically adjusts tension on the primary chain during acceleration and deceleration, keeping the chain tight and eliminating slack that causes clunking and noise.

Will this make my transmission quieter?

Yes. By maintaining proper tension, the primary chain won't slap or rattle, and shifting becomes noticeably smoother with less clunk.

Does this fit my specific Harley or Indian model?

This tensioner is designed for V-twin big-twin engines. Verify fitment with the manufacturer or your dealer for your exact year and model.

Is installation difficult?

Installation involves removing the primary cover and replacing the stock tensioner. Most riders use a shop, but mechanically inclined owners can do it at home with basic tools.