About The Product
- Genuine Magura disc adapters
Upgrade your mountain biking or gravel riding setup with the Magura QM40 Front Post to 180mm Disc Brake Adapter - the perfect solution for customizing rotor size and optimizing braking performance. Designed specifically for Magura disc brake calipers, this high-quality adapter ensures smooth compatibility between your brake calipers and different frame or fork mount standards.
Materials & Engineering:
Constructed from durable, lightweight aluminum alloy, the Magura QM40 adapter combines strength with corrosion resistance for reliable performance ride after ride. Precision-machined to tight tolerances, it guarantees secure mounting and optimal alignment for enhanced braking efficiency.
Performance & Components:
This adapter converts standard Post Mount calipers (74mm) to accommodate a 180mm rotor, increasing stopping power and modulation - ideal for aggressive riding, downhill, or long descents where maximum braking control is essential. The included hardware simplifies installation, ensuring a secure and wobble-free connection between caliper and rotor.
Tech & Compatibility:
Compatible with Post Mount calipers and designed for 20mm thick rotors, the Magura QM40 supports a wide range of mountain bike configurations. It seamlessly integrates with forks and frames featuring Post Mount (PM) 74mm standards, with options for Flat Mount (FM) and International Standard (IS) configurations. This versatility allows riders to adapt their braking system for various frame standards and rotor sizes up to 180mm, maximizing braking performance and gear compatibility.
Style & Use Case:
Featuring a sleek black finish, the QM40 adapter complements any bike build while providing the functionality needed for aggressive riding disciplines such as downhill, enduro, and trail riding. Its lightweight profile minimizes weight gain, making it an excellent choice for riders seeking to enhance their existing brake setup without sacrificing agility.
Innovative Features:
- Converts Post Mount 74mm calipers to fit 180mm rotors for increased braking leverage.
- Compatible with multiple frame standards for versatile application.
- Includes mounting hardware for straightforward installation.
- Crafted from high-strength aluminum for longevity and corrosion resistance.
Elevate your braking system with the Magura QM40 Front Post to 180mm Adapter - engineered for durability, performance, and seamless integration. Whether upgrading an existing setup or customizing for specific terrain demands, this adapter ensures dependable, powerful braking where and when you need it most.
- Magura QM40 Front Post Mount Adapter allows seamless compatibility between 74mm post mount calipers and 180mm rotor sizes, enhancing braking performance on your mountain bike or trail bike.
- Constructed from high-quality, durable materials, this adapter ensures reliable strength and stability under aggressive riding conditions, improving overall brake modulation and power.
- Designed with precise engineering and compatibility for Post Mount calipers and 180mm rotors, the QM40 adapter simplifies installation while maintaining optimal alignment for maximum braking efficiency.
- Ideal for upgrading or customizing your mountain bike's braking system, this adapter supports versatile use cases including downhill, enduro, and cross-country riding, delivering confident stopping power in demanding terrains.
- Features include easy-to-use hardware installation, corrosion-resistant finish, and compatibility with Magura disc brake systems, making it a reliable choice for professional mechanics and avid riders seeking precision and durability.
| Specification | Value |
|---|---|
| Manufacturer | MAGURA |
| Manufacturer Part No. | 2 700 515 |
| Universal Product Code | 4055184010266 |
| Invoice Description | BRAKE PART MAG DISC ADPTR QM40 PM FT 180mm |
| Shipping Weight | 0.09 lbs. |
| Package Dimensions | 4.35 x 3.5 x 0.65 |
| Country of Origin | TAIWAN |
| Rotor Size | 180mm |
| Frame Mount | Post Mount |
| Caliper Mount | Post 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:
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The item must be in new, unused, and uninstalled condition.
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All original packaging, tags, hardware, and accessories must be included and intact.
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Items showing wear, installation marks, damage, or improper use cannot be accepted.
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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:
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You will receive a Return Authorization email with instructions.
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Print the prepaid label provided by us. ($9.99 will be deducted from your refund)
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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:
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Electronics with opened packaging or broken manufacturer seals
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Any part that has been installed or shows installation attempts
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Tools or chemicals that have been opened or unsealed
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Open‑box items with destroyed or missing packaging
Our Info
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Storefront name: Bike Junkies
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Address: 940 Calle Amanecer, Suite N
San Clemente, CA 92673 -
Phone: 800-605-2152
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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:
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Alaska
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Hawaii
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Puerto Rico
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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.
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We cannot ship hazardous materials or oversized items to military addresses due to carrier and military mail restrictions.
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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
