Sumart Floating Disc Brake Rotor

SUMART FR3H Floating Disc Brake Rotor

Lightweight strength, better heat control, and consistent braking performance for road, gravel, trail, and race use.

The SUMART FR3H Floating Disc Brake Rotor is engineered for riders who want stronger, smoother, and more consistent braking without adding unnecessary weight. Built with a 7075 aluminum carrier and a 410 stainless steel braking band, the FR3H is designed to improve heat management, reduce noise, and deliver dependable stopping power in demanding conditions. Whether you are upgrading your bike for trail riding, road cycling, gravel riding, or racing, this floating disc brake rotor offers the control, durability, and braking confidence serious riders need.

The floating design allows the outer braking track and inner carrier to work more effectively under heat and load. That means more stable braking feel on long descents, more consistent rotor performance, and less chance of unwanted vibration or distortion when conditions get tough. For riders pushing hard in wet weather, fast descents, or repeated braking zones, the FR3H is built to maintain performance when it matters most.

Key Features & Benefits

• Floating Rotor Design: The floating construction helps the rotor manage heat expansion more effectively, improving braking consistency and helping reduce the risk of warping under heavy use.
• 7075 Aluminum Carrier: A lightweight, high-strength carrier reduces rotating mass while maintaining the rigidity needed for confident braking performance.
• 410 Stainless Steel Braking Band: The braking surface is built for wear resistance, corrosion resistance, and dependable stopping power in a wide range of riding conditions.
• Improved Heat Dissipation: Better thermal control helps maintain brake feel on long descents and during repeated hard braking, which is especially valuable for aggressive riding and racing.
• Reduced Brake Noise: Designed to help minimize squeal and unwanted brake drag for a quieter, smoother ride.
• Consistent Lever Feel: Stable braking surfaces and quality materials help provide a more predictable, controlled feel at the lever.
• Ready to Install: Includes 6 mounting bolts for fast, straightforward installation.

Why Choose a Floating Disc Brake Rotor?

A floating bike brake rotor is designed to better handle heat and stress than a one-piece rotor. By allowing controlled movement between the braking band and carrier, floating rotors can improve heat management, maintain truer braking performance, and provide a more consistent feel during demanding riding. For riders who want better braking control, lower noise, and improved rotor stability, a floating rotor is a smart upgrade.

Specifications

• Model: FR3H
• Rotor Type: Floating disc brake rotor
• Available Sizes: 160 mm, 180 mm, 203 mm, 220 mm, 254 mm
• Thickness: 1.8 mm, 2.25 mm (254 mm rotor)
• Carrier Material: 7075 Aluminum Alloy
• Braking Band Material: 410 Stainless Steel
• Color: Black
• Mount Type: 6-bolt
• Included: 1 floating disc brake rotor and 6 bolts

Ideal For

The SUMART FR3H is ideal for riders looking for a lightweight 6-bolt brake rotor with reliable stopping power, better heat resistance, and smoother performance. It is well suited for mountain bikes, gravel bikes, road bikes, trail bikes, and race bikes where braking consistency, reduced noise, and long-term durability matter.

Performance You Can Feel

From steep descents to everyday riding, the SUMART FR3H Floating Disc Brake Rotor is built to give riders more confidence at the lever. With premium materials, floating construction, and performance-focused design, it is a strong upgrade for anyone looking for a high-performance disc brake rotor that delivers smooth braking, reliable control, and lasting value.