Best Bike Brake Mounts & Adapters of 2026
* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.
Bike brake mounts and adapters are essential components for any cyclist looking to upgrade or maintain their braking system. These small but important pieces allow for compatibility between different brake systems and frame designs. With a variety of options available, including post mount, IS mount, and flat mount adapters, cyclists can ensure their brakes fit securely and function properly. These mounts and adapters are made from durable materials and are designed to withstand the rigors of cycling, ensuring a safe and reliable ride.
At a Glance: Our Top Picks
Top 10 Bike Brake Mounts & Adapters
BUCKLOS PM/is Front Rear Disc Brake Adapter
The BUCKLOS PM/is Front Rear Disc Brake Adapter is a durable and sturdy CNC machined aluminum alloy rotor adapter that is compatible with front and rear IS/POST 180mm 203mm and fits all brands. This brake adapter can be used as an upgrade accessory and is suitable for rotors from 160mm to 180mm and 203mm. Additionally, it comes from a US warehouse and can be delivered in 5-7 working days. If there is any damage, contact the seller for a new replacement.
Qjaiune 0.87 Inch Bike Brake Adapter
The Qjaiune Brake Adapter is designed to upgrade your ordinary bike to a disc brake system. With an inner diameter of 0.87 inches (22mm), this adapter is perfect for cycling enthusiasts who enjoy DIY modifications. Made from high-quality metal, it ensures durability while adding a stylish touch to your bike. The adjustable bracket design accommodates various road bike sizes, making it versatile for different models. This adapter is an essential accessory for bikes without disc brakes, suitable for road bikes, mountain bikes, BMX, and MTB, enhancing your riding experience and safety.
AGILLE KICKR Thru Axle Adapter Kit
The AGILLE KICKR Adapter is designed to fit perfectly with Wahoo KICKR CORE and KICKR v4 (2018) and newer models, ensuring compatibility with different bike setups through included adapters for 148 and 142 non-drive sides, plus drive side components. Made with upgraded stainless steel in 2025, this kit offers increased durability and rust resistance, so you can trust it to last longer. Installation is straightforward, but you’ll need some basic bike tools and can find helpful video guides online for step-by-step instructions. This makes it easy for you to upgrade or replace parts quickly and keep your bike trainer working smoothly.
CYCPLUS Front Bike Mount for Garmin and CYCPLUS Computers
The CYCPLUS Front Bike Mount is designed to hold your cycling computer securely on handlebars measuring 31.8mm in diameter. It works with many Garmin Edge models and all CYCPLUS wireless bike computers, making it versatile for different riders. The mount places your device right in front, so you can easily see your stats without turning your head, helping you stay safer on the road. Installation is simple and fast—you can attach it in about a minute using the included screwdriver. Plus, it’s lightweight yet stable, so your device stays steady even on rough terrain, giving you a reliable and clear view throughout your ride.
Shimano Spares Adapter for 180mm Post Mount to 203mm Rotor
The Shimano 180mm to 203mm Adapter is designed to help you upgrade your bike's braking system with ease. It allows you to mount a larger 203mm brake rotor on a 180mm post-type fork mount, giving you improved stopping power and better control on your rides. The adapter fits post mount calipers, making it compatible with many Shimano brake setups. Its black finish adds a sleek look while ensuring durability. With this adapter, you can enjoy enhanced braking performance without needing to change your entire brake system.
ulapithi Stainless Steel KICKR Thru Axle Adapter Kit
The ulapithi KICKR Axle Adapter is built with tough stainless steel, which means it resists wear and rust better than older versions. This durability ensures you get a reliable fit and long-lasting use. The kit comes with all the parts you need, including adapters for different axle sizes and locking nuts, so you have everything ready for your bike setup. It’s designed to work with Wahoo KICKR CORE and newer KICKR models, making it a versatile choice. Installing the adapter is straightforward, though you’ll need some basic tools and can find helpful installation videos online to guide you through the process.
Shimano Unisex's SMMA90F203PPM Bike Parts
This bike part is a brake mount adapter made in China by the popular brand Shimano. It belongs to the Bike Brake Mounts & Adapters category and can be used to improve the performance of your bike's brakes.
Juscycling Bicycle Bike Freewheel Threaded Hubs Disk Disc Brake Rotor 6 Bolt Flange Adapter 44MM, 2 pcs/Pack
The Juscycling Bike Flange Adapter is a high-quality accessory designed to enhance your cycling experience. Made with precise CNC machining, this adapter offers superior strength to handle the power of your brakes. The lightweight aluminum alloy construction, weighing just 15g, ensures that it won't add unnecessary weight to your bike. With a thickness of 7.5mm, this adapter provides a secure connection for your disc brake rotor. The pack includes 2 flange adapters with a 44mm size, so you can easily install them on your bike. Improve your braking performance and enjoy a smoother ride with the Juscycling Bike Flange Adapter.
JooFn Disc Brake Caliper Adapter
The JooFn Brake Adapter is a versatile solution for your bike's braking system. This post mount adapter is crafted from CNC machined anodized aluminum alloy, ensuring durability and a sleek finish. It allows you to install larger 200mm or 203mm rotors on a 180mm post mount, enhancing your braking performance. Alternatively, it can also accommodate a 180mm rotor caliper on a 160mm post mount. With compatibility for 74mm fork/frame post mounts, this adapter provides flexibility and convenience for various setups. The package includes the necessary mounting bolts and spacers, making installation straightforward and efficient.
SHIMANO Flat Mount Disc Brake Adapter Rear, Flat Caliper to Flat Mount, 160mm
SHIMANO Brake Adapter is a versatile and practical solution for your bike braking system. This adapter is compatible with 140mm rotors, 160mm rotors, post-mount disc calipers, and flat-mount disc calipers. The adapter is easy to install and comes with a manufacturer warranty of 2 years. With this adapter, you can easily upgrade your bike's braking system to a flat-mount system, which is more aerodynamic and provides better clearance. The adapter is also suitable for bikes with post-mount calipers, making it a great choice for those who want to switch between different braking systems. The SHIMANO Brake Adapter is a reliable and convenient accessory that can help you improve your bike's performance.
Frequently Asked Questions (FAQs)
1. What are the different types of bike brake mounts?
There are two types of brake mounts on frames and forks: IS and Post Mount. These mounts are designed around specific sizes of brake rotors. If you have the same size rotor as your frame or fork's native size, you won't need a brake adapter.
2. How do I know what brake adapter I need?
To determine the brake adapter you need, check the size of the brake rotor and whether the brake caliper is attached directly. This will help you determine the size of the post mounts. For example, if you have 180mm rotors currently installed, you would need a 160mm post mount adapter.
3. Are bike disc brake mounts universal?
No, bike disc brake mounts are not universal. Disc brakes require specific mounting tabs on the frame and rotor mounts on the hubs. Frames are spaced wider to fit the rotors. Therefore, compatibility may vary between different bike models and brands.
4. Are post mount adapters universal?
The Post Mount standard is universal for front and rear brakes. However, the size of the post mount may vary from 160mm to 203mm. It's important to check the default post mount size on your frame and fork before choosing the appropriate adapter.
5. How do I know if my mount is flat or post mount?
The main difference between flat mount and post mount standards is the mounting bolt distance. Post-mount uses a 74mm mount, while flat-mount has a bolt distance of 34mm. Before purchasing a brake, make sure to check the specifications of your frame and fork to determine the type of mount you have.
6. Are front and rear brake adapters the same?
No, front and rear brake adapters are not the same. Due to the design and geometry of the standard, different adapters are required to adapt the same caliper to the same size rotor for the front and rear brakes.
7. What is the difference between postmount and flatmount?
The main difference between post-mount and flat-mount standards is the mounting bolt distance. Post-mount uses a 74mm mount, while flat-mount has a bolt distance of 34mm. It's crucial to check your fork and frame specifications before purchasing a brake to ensure compatibility.
8. Can you convert flat mount to post mount?
In some cases, it is possible to convert a flat mount to a post mount using an adapter. Bicycle component manufacturer Wolf Tooth offers an adapter specifically designed to mount a flat mount brake caliper onto a post mount fork or frame. However, it's important to consider the compatibility of your specific bike and components before attempting any conversions.
During our bike brake mounts & adapter research, we found 24 bike brake mounts & adapter products and shortlisted 10 quality products. We collected and analyzed 10,340 customer reviews through our big data system to write the bike brake mounts & adapters list. We found that most customers choose bike brake mounts & adapters with an average price of $8.12.
The bike brake mounts & adapters are available for purchase. We have researched hundreds of brands and picked the top brands of bike brake mounts & adapters, including BUCKLOS, Qjaiune, AGILLE, CYCPLUS, SHIMANO. The seller of top 1 product has received honest feedback from 211 consumers with an average rating of 4.6.
Jason Kiser is an editor who lives in California, he previously worked in a travel agency for ten years, which enabled him to travel a number of interesting countries and experience several different cultures along the way. His range of job and travel experiences grant him expertise in hiking, camping, outdoors and fitness.