About The Product
- For a 160mm rotor with 6" IS mount front fork OR a 203mm rotor with pre-2014 Fox 40 forks (8" IS Mount)
Upgrade your mountain biking setup with the Magura QM43 Adaptor - the ultimate solution for seamless rotor size compatibility and optimal braking performance. Designed for serious riders and bike enthusiasts, this high-quality adaptor enables you to convert your existing disc brake system for enhanced versatility and superior stopping power.
Materials & Durability
Constructed from robust, lightweight aluminum alloy, the Magura QM43 Adapter offers exceptional strength and resistance to corrosion, ensuring long-lasting performance in the toughest trail conditions. Its sleek black finish not only adds a professional aesthetic but also shields against abrasion and environmental elements.
Performance & Engineering
Engineered for precision and reliability, this adaptor is crafted to convert ISO (International Standard) 51mm mounts to Post Mount 74mm calipers, supporting rotor sizes of 160mm and 203mm. It maintains optimal alignment between your caliper and rotor, reducing brake noise, improving modulation, and delivering consistent stopping power on demanding descents and high-speed descents.
Components & Technology
The Magura QM43 features a design that includes all necessary mounting hardware, simplifying installation and compatibility. It is compatible with pre-2014 Fox 40 forks equipped with 203mm rotors and suitable for Flat Mount forks and frames with 70mm and 34mm mounting standards. This adaptor leverages Magura's advanced engineering to ensure a secure fit, minimal flex, and maximum braking efficiency.
Style & Use Case
Whether you're upgrading your downhill rig, enduro bike, or trail bike, the Magura QM43 Adaptor provides a clean, professional look that complements any build. Its versatility makes it ideal for riders seeking to switch rotor sizes or adapt their calipers for more aggressive riding styles. Perfect for competitive racing, bike park sessions, or rugged trail adventures.
Innovative & Differentiating Features
Unique to the QM43, this adaptor enables compatibility between different mountain bike standards without needing complete system swaps. It reduces the need for multiple adapters, saving time and money while ensuring your braking setup remains reliable and responsive. The inclusion of mounting hardware accelerates installation, allowing riders to get back on the trail faster.
Key Specifications:
- Compatible with Post Mount calipers (74mm) and ISO (51mm) mounts
- Supports 160mm and 203mm rotors
- Suitable for pre-2014 Fox 40 forks (with 203mm rotors) and 51mm ISO mounts
- Material: High-strength aluminum alloy
- Color: Sleek Black for a professional finish
- Hardware Included: Mounting hardware for quick installation (note: hardware for frame not included)
Optimize your braking system with confidence-choose the Magura QM43 Adaptor for unmatched quality, durability, and performance in mountain bike braking setups. Boost your bike's capability and ride with peace of mind on every trail.
- Allows for seamless adaptation between 160mm and 203mm rotors, providing versatile braking power tailored to downhill and enduro riding styles.
- Constructed from high-quality materials with precision-engineered mounting interfaces ensures reliable, secure attachment for optimal braking performance under demanding conditions.
- Features compatible with Magura disc brake calipers and integrates easily with (IS) and (PM) mounting standards, facilitating quick upgrades or brake system customization.
- Designed for aggressive trail riding and downhill racing, this adapter accommodates Fox 40 forks and frames with 51mm (IS) mounts, offering enhanced braking control and improved stopping power.
- Includes all necessary hardware for installation, backed by innovative engineering to ensure consistent performance, durability, and compatibility with a wide range of bicycle setups.
| Specification | Value |
|---|---|
| Manufacturer | MAGURA |
| Manufacturer Part No. | 2 700 518 |
| Universal Product Code | 4055184010297 |
| Invoice Description | BRAKE PART MAG DISC ADPTR QM43 IS FT 6in 160mm/FOX40 8in 203mm |
| Shipping Weight | 0.10 lbs. |
| Package Dimensions | 4.3 x 3.5 x 0.95 |
| Country of Origin | TAIWAN |
| Rotor Size | 160mm/203mm |
| Frame Mount | IS Mount |
| Caliper Mount | Post Mount |
| Color | Black |
| Size | 0mm |
| 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
-
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
