About The Product
- Flat mount rear disc adapter for 160mm rotors
- Includes M5x10 T25 countersunk screws
Upgrade your bike's braking versatility with the Magura Disc Brake Mount Adapter (Model QM51). Designed with precision engineering and high-quality materials, this adapter ensures seamless integration of Magura flat mount calipers and versatile rotor sizes to optimize your braking performance across different riding conditions.
Materials & Construction
Constructed from durable, lightweight aluminum, the Magura Mount Adapter guarantees reliable performance and corrosion resistance. Its robust build maintains integrity under demanding riding conditions, ensuring consistent brake modulation and fade resistance.
Performance & Engineering
This adapter is engineered for precise compatibility with Magura flat mount calipers, supporting rotor sizes from 140mm to 180mm for superior stopping power. Ideal for cross-country, trail, and enduro bikes, it provides a secure and stable connection between your caliper and frame or fork, ensuring optimal brake alignment and responsiveness.
Components & Technology
The package includes all necessary mounting hardware, making installation straightforward and secure. Designed to adapt (PM) 74mm calipers on (IS) 51mm frame/fork mounts or to modify rotor size options at the rear or front, it offers unmatched flexibility for bike customization and upgrades.
Style & Use Case
Featuring a sleek black finish, this mount adapter complements modern bicycle aesthetics while providing a functional upgrade to improve braking control. Whether you're upgrading your existing setup or customizing a new build, this adapter facilitates optimal rotor compatibility and enhances rider confidence during technical descents or high-speed rides.
Innovative & Differentiating Features
The Magura QM51 Adapter simplifies the process of switching between rotor sizes and caliper standards, reducing setup time and increasing versatility. Its compatibility with flat mount standards and inclusion of all mounting hardware make it a must-have for cyclists seeking reliable, high-performance braking solutions.
Key Features:
- Precision-machined aluminum construction for durability and weight savings
- Supports rotor sizes from 140mm to 180mm, including R160 (160mm) rotors
- Compatible with Magura flat mount calipers and standard frame/fork mounts (FM 70mm, FM 34mm, IS 51mm)
- Includes hardware for straightforward installation
- Sleek black aesthetic complements any bike frame
Optimize your bicycle's braking system with the Magura Disc Brake Mount Adapter QM51 - engineered for versatility, performance, and peace of mind on every ride.
- Adjust your Magura disc brake setup with this versatile Flat Mount Adapter compatible with R160 rotors for optimal braking performance.
- Engineered from high-quality materials for maximum durability and precise fit, ensuring reliable performance on all mountain and road bikes.
- Supports a wide range of rotor sizes from 140mm to 180mm, allowing customization for different riding styles, from XC racing to trail riding.
- Designed for ease of installation with included hardware, this adapter seamlessly converts between Flat Mount and Post Mount calipers, offering flexible mounting options.
- Featuring innovative engineering to accommodate specific frame and fork configurations, such as Flat Mount 34mm and 70mm standards, making it a perfect upgrade for modern bike builds.
| Specification | Value |
|---|---|
| Manufacturer | MAGURA |
| Manufacturer Part No. | 2 701 600 |
| Universal Product Code | 4055184022399 |
| Invoice Description | BRAKE PART MAG DISC ADPTR QM51 FLAT MOUNT RR 160 w/HARDWARE |
| Shipping Weight | 0.12 lbs. |
| Package Dimensions | 6.55 x 4.55 x 0.45 |
| Country of Origin | GERMANY |
| Rotor Size | 140mm to 160mm/160mm to 180mm |
| Frame Mount | Flat Mount |
| Caliper Mount | Flat Mount |
| Color | Black |
| Size | 20mm |
| Adapter / Bolts | Adapter |
- Supplier:
- JBI
Bike Junkies offers no‑hassle returns and exchanges within 60 days of delivery. We want every customer to feel confident when shopping with us, and our return process is designed to be simple, fair, and fast.
Return Eligibility
To qualify for a return or exchange, the following conditions must be met:
-
The item must be in new, unused, and uninstalled condition.
-
All original packaging, tags, hardware, and accessories must be included and intact.
-
Items showing wear, installation marks, damage, or improper use cannot be accepted.
-
An order number is required.
Once your return is received at our warehouse, a refund will be issued within 5 days after inspection.
Refunds
Refunds are issued to the original form of payment once the returned item has been received and approved. If we are unable to refund to the original payment method, the refund will be issued as store credit.
Depending on your bank or credit card provider, it may take an additional 2–3 business days for the refund to appear in your account.
Exchanges
To make an exchange, simply complete the return process and then place a new order for the item you want instead. This ensures the replacement item is reserved and ships quickly.
How to Start a Return
To request a Return Authorization (RA#), contact us at support@bikejunkies.com. Please include your order number and the item you wish to return.
Once approved:
-
You will receive a Return Authorization email with instructions.
-
Print the prepaid label provided by us. ($9.99 will be deducted from your refund)
-
Ship the item back within 7 days of the RA being issued as RA #'s are only valid for 7 days.
Please do not tape anything to the original product packaging. Place the item inside a proper shipping box. Using the manufacturer’s box as the shipping container will result in damage and the return may be rejected.
Be sure to keep your return tracking number. Powersport Junkies is not responsible for lost return shipments. You will receive a confirmation email once your return has been processed and refunded.
Defective, Incorrect, or Damaged Items
If you receive a defective, damaged, or incorrectly shipped item, contact us immediately. We will cover the return shipping cost and ensure the issue is resolved quickly.
Non‑Returnable Items
Certain items cannot be returned, including:
-
Electronics with opened packaging or broken manufacturer seals
-
Any part that has been installed or shows installation attempts
-
Tools or chemicals that have been opened or unsealed
-
Open‑box items with destroyed or missing packaging
Our Info
-
Storefront name: Bike Junkies
-
Address: 940 Calle Amanecer, Suite N
San Clemente, CA 92673 -
Phone: 800-605-2152
-
Support email: support@bikejunkies.com
- Support hours + timezone:
Monday-Friday: 9:00 AM-5:00 PM PST
Saturday: 9:00 AM-3:00 PM PST
Sunday: Closed
This Shipping Policy explains how orders are processed, handled, and delivered by Bike Junkies, including delivery timelines, shipping coverage, and special conditions for military addresses. It is designed to give customers a clear understanding of what to expect when placing an order.
Bike Junkies is proud to be an authorized dealer of the brands we currently offer. When you purchase from us, you are guaranteed to receive genuine, brand-new products backed by the full manufacturer warranty. We work directly with the manufacturers to ensure you receive the highest quality service and support.
Order Processing and Handling
Orders are processed quickly to ensure fast delivery. Our standard handling time is 0–1 business days. Order cutoff time is 12 PM PST Monday-Friday and orders placed after that will be shipped shipped next business day.
Transit Times
Once shipped, orders typically arrive within 2–3 business days. Transit times may vary slightly depending on the destination, weather conditions, or carrier-related delays. Delivery estimates apply only after the order has left our facility.
Delivery Schedule
Standard delivery occurs Monday through Friday. Saturday delivery may be available.
Shipping Coverage
Bike Junkies offers free shipping to the lower 48 states of the United States. We do not ship to the following locations:
-
Alaska
-
Hawaii
-
Puerto Rico
-
Any international destination outside the United States
Orders placed with shipping addresses in restricted locations will be canceled and refunded.
Military Shipping (APO/FPO)
Bike Junkies ships to APO/FPO military addresses using USPS only.
-
We cannot ship hazardous materials or oversized items to military addresses due to carrier and military mail restrictions.
-
Transit times to APO/FPO locations may vary significantly depending on military mail processing.
Address Accuracy and Delivery Issues
Customers are responsible for ensuring that all shipping information provided at checkout is accurate and complete. Bike Junkies is not responsible for delays, lost packages, or delivery failures caused by incorrect or incomplete addresses. If a package is returned due to an address error, additional shipping charges may apply to resend the order.
Lost, Delayed, or Damaged Shipments
If a shipment is delayed, lost, or arrives damaged, customers should contact us promptly so we can assist with initiating a claim or resolving the issue with the carrier. While we support the process, final decisions regarding claims are made by the carrier.
Tracking Information
A tracking number is provided via email once the shipping label has been created. Tracking updates may take up to 24 hours to appear after the label is generated.
Shipping Restrictions
Certain items may be subject to shipping restrictions due to size, weight, or hazardous material regulations. If an order cannot be shipped due to such restrictions, we will notify the customer to arrange an alternative solution.
Our Info
-
Storefront name: Bike Junkies
-
Address: 940 Calle Amanecer, Suite N
San Clemente, CA 92673 -
Phone: 800-605-2152
-
Support email: support@bikejunkies.com
- Support hours + timezone:
Monday-Friday: 9:00 AM-5:00 PM PST
Saturday: 9:00 AM-3:00 PM PST
Sunday: Closed
For warranty issues please contact us at support@bikejunkies.com. Each Brand is different and we can provide instruction to complete warranty issues.
Bike Junkies is proud to be an authorized dealer of the brands we currently offer. When you purchase from us, you are guaranteed to receive genuine, brand-new products backed by the full manufacturer warranty. We work directly with the manufacturers to ensure you receive the highest quality service and support.
Our Info
-
Storefront name: Bike Junkies
-
Address: 940 Calle Amanecer, Suite N
San Clemente, CA 92673 -
Phone: 800-605-2152
-
Support email: support@bikejunkies.com
- Support hours + timezone:
Monday-Friday: 9:00 AM-5:00 PM PST
Saturday: 9:00 AM-3:00 PM PST
Sunday: Closed
