About The Product
- Genuine replacement bearings for FSA headsets
- May fit other models
Upgrade your bicycle's performance with the FSA (Full Speed Ahead) ACB Bearing Micro 36 x 45 - a durable, precision-engineered component designed for reliable cycling excellence. Developed with advanced materials and engineered for optimized performance, this high-quality cartridge bearing is ideal for road, mountain, and gravel bike applications.
Materials & Construction:
Crafted with premium-quality steel balls and a sealed blue rubber seal, the FSA ACB Bearing Micro ensures maximum durability and resistance against dirt, water, and contaminants. The sealed cartridge design provides enhanced protection, reducing maintenance needs and extending bearing lifespan, making it perfect for demanding riding conditions.
Performance & Engineering:
With precision 36x45-degree angled ball bearings, this model offers smooth rotation, reduced friction, and superior load distribution. The 51.9mm outer diameter, combined with an 40mm inner diameter bore, guarantees a secure fit and optimal performance in 1.5" headsets or bottom brackets. Its engineered design ensures consistent performance, even under high stress, making it a trusted choice for professional cyclists and enthusiasts alike.
Components & Technology:
Featuring a sealed cartridge bearing system, the ACB MR127 combines robust engineering with ease of installation. The sealed design maintains lubrication and keeps contaminants out, leading to longer service intervals and reliable operation in diverse cycling environments. Built to meet the demanding standards of modern bicycle components, it offers both dependability and efficiency.
Style & Use Case:
Designed to blend seamlessly with high-performance cycling setups, this bearing is ideal for upgrading or maintaining headsets, bottom brackets, or other critical bike components. Its compact size and durable construction make it suitable for various bike types, whether you're tackling rugged trails, fast-paced road rides, or challenging gravel adventures.
Innovative Features:
The FSA ACB Bearing Micro features a sealed blue rubber protective cover, a hallmark of quality that enhances longevity and reduces maintenance. Its precise 36x45-degree angle design maximizes load capacity and minimizes play, ensuring a smooth, responsive ride every time.
Key Specifications:
- Bearing Type: Cartridge, Sealed
- Bearing Size: 36 x 45 degrees, 36/45 Ball Size
- Outer Diameter (O.D.): 51.9mm
- Inner Diameter (I.D.): 40mm
- Fitment: 1.5" (for headsets, bottom brackets, similar applications)
- Model: MR127
- Packaged individually for versatile upgrades and replacements
Optimize your cycling experience with the FSA ACB Bearing Micro 36 x 45 - the reliable choice for precision, durability, and performance.
- High-precision cartridge bearing designed with FSA's durable ACB (All-Conditions Bearing) technology for reliable performance in demanding cycling applications.
- Constructed with a resilient blue seal, these micro 36x45 bearings offer superior protection against dirt, water, and debris, extending bearing lifespan and maintaining smooth operation.
- Engineered with a 36x45 degree bearing angle and sealed cartridge design, ensuring optimal load distribution for enhanced stability and reduced friction under high-performance riding conditions.
- Compatible with 1.5-inch spindle sizes, these bearings are ideal for a wide range of bike components such as hubs, cranks, and bottom brackets, providing versatile installation options.
- Featuring advanced engineering with high-quality materials and sealed ball technology, FSA ACB Micro Bearings deliver consistent, long-lasting performance for competitive cycling and everyday riding.
| Specification | Value |
|---|---|
| Manufacturer | FULL SPEED AHEAD |
| Manufacturer Part No. | 160-6761 |
| Universal Product Code | 400310069696 |
| Invoice Description | BEARING HEAD FSA 1.5 36/45 ACB MR127 EA. |
| Shipping Weight | 0.07 lbs. |
| Package Dimensions | 2.25 x 2 x 0.5 |
| Country of Origin | TAIWAN |
| Model | MR127 |
| Description | Blue Seal |
| Fit | 1.5" |
| Angle | 36/45 |
| Type | Sealed Cartridge |
| I.D. | 40mm |
| O.D. | 51.9mm |
| Width | 8mm |
| Sold As | Individual |
- 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
