11.5 in Rear Brake Rotor for Harley Davidson Touring Sportster Dyna

In this review the 11.5 in rear brake rotor is evaluated for riders who want a durable replacement rotor for a wide range of Harley models. The bottom line: it is best for owners of Sportster, Touring, Dyna, Early Super Glide and many Softail models who need a rotor offering consistent wet or dry performance and improved cooling. The mirror-polished stainless finish looks good on chrome bikes, and the full-sweep, hollow design is the main reason to consider this rotor if heat dissipation under heavy braking is a priority.

Key Features

• Broad compatibility: Fits many Harley Davidson models including Sportsters 1984-2010 and Dyna 1992-2017, making it a versatile replacement part.
• Superior heat dissipation: The full-sweep pattern and hollow design reduce weight and help the rotor cool quickly during repeated braking.
• High polished stainless construction: Made from 420 stainless steel for a mirror-polished appearance and basic corrosion resistance.
• Vibration resistance: Precision ground for flatness to minimize vibration and improve pedal feel under load.
• Durable finishing: Cut holes receive black paint to help resist rust at those vulnerable points.

Who It's For

This rotor is aimed at Harley owners who want a direct-fit replacement that improves cooling and keeps a polished look on bikes from Sportsters to Touring and Dyna families. It is also suitable for riders who do heavier street braking and want a rotor designed to manage heat and reduce fade.

Riders looking for a rotor with OEM branded packaging or long-term documented rust protection may want to compare other stainless finishes or coated rotors; some users reported mixed long-term rust resistance on the chrome/polish in high-exposure climates.

Pros & Cons

Pros

• Good fit across many model years, making replacement straightforward for compatible Harleys.
• Improved cooling from the hollow, full-sweep design helps maintain performance under repeated stops.
• Attractive mirror-polished stainless finish that enhances appearance on chrome bikes.

Cons

• Rust resistance received mixed feedback, with isolated reports of finish wear over time in harsh conditions.

Specifications

Diameter	11.5 in
Material	420 stainless steel, mirror-polished
Compatibility	Sportster, Touring, Dyna, Early Super Glide, Softail models (multiple years)
Design	Full-sweep pattern, hollow design for reduced weight
Hardware	3/8-16 x 3/4 in screws required for installation (included)
Finish detail	Cut holes treated with black paint for rust protection

Our Verdict

The 11.5 in rear brake rotor is a solid value for Harley owners who need a compatible, well cooling replacement rotor with a polished look. It delivers dependable wet and dry stopping performance and resists vibration, so it is a good pick for most street riders; those in very corrosive environments should monitor the finish over time.

Frequently Asked Questions

Will this rotor fit my Harley Sportster?
It fits Sportster models listed 1984-2010; double check your year and mounting pattern before ordering.

Are mounting screws included?
Screws of size 3/8-16 x 3/4 in are specified and may be included with the part, but confirm with the seller or package contents.

How well does it resist rust?
The rotor uses 420 stainless and painted cut holes for protection, but some customers reported mixed long-term rust resistance depending on exposure.