About The Product
- Wide range 9 speed derailleur with alloy bracket, outer link and cage
- Compatible with wide range 9 speed cassettes up to 51t
- Adjustable chain stabilizer
Upgrade Your Mountain Biking with the SunRace M900 Rear Derailleur - 9-Speed, Medium Cage, Black
Experience smooth, reliable shifting performance on rugged MTB trails with the SunRace M900 Rear Derailleur. Engineered for 9-speed mountain bike drivetrains, this high-performance derailleur combines advanced materials, innovative technology, and durable design to enhance your off-road adventures.
Materials & Construction:
Built for durability and lightweight performance, the SunRace M900 features an alloy alloy outer link and outer cage, along with an alloy bracket, ensuring robustness without adding unnecessary weight. Weighing just 259g, this derailleur offers an optimal balance of strength and agility, perfect for aggressive trail riding and long endurance rides.
Performance & Engineering:
Designed for precise gear shifts and consistent chain management, the M900's adjustable chain stabilizer helps maintain optimal tension during jumps, climbs, and descents. Its medium cage (long mount) accommodates large cogs up to 51 teeth, providing excellent gear range flexibility for steep climbs and fast descents. The derailleur's ratio of 2:1 ensures smooth, responsive shifting across your gear spectrum.
Components & Technology:
Compatible with Shimano Mountain 9-speed shifters and Shimano rear direct mount systems, the SunRace M900 offers seamless integration into your existing MTB setup. Its robust construction and optimized pulley system deliver low-friction performance, minimizing drivetrain wear and maximizing efficiency on the trail.
Style & Use Case:
Featuring a sleek black finish, the SunRace M900 not only performs at a high level but also adds a touch of understated style to your bike. Its versatile, durable design makes it ideal for cross-country, trail, and enduro riders who demand dependable shifting in challenging terrains.
Innovative Features:
The adjustable chain stabilizer enhances chain retention, reducing the risk of drops during aggressive riding. Its all-alloy components ensure longevity and resistance to mud, water, and grit, making it the perfect upgrade for riders seeking durability and refined performance.
Elevate your mountain biking experience with the SunRace M900 Rear Derailleur-where advanced engineering meets rugged reliability. Optimize your drivetrain today for smoother shifts, enhanced control, and total confidence on every trail.
- High-performance 9-speed MTB rear derailleur engineered with lightweight aluminum alloy components for enhanced durability and corrosion resistance.
- Features an adjustable chain stabilizer to ensure smooth shifting and reduced chain slap on rugged trail terrain.
- Designed with a medium cage length and a max sprocket size of 51 teeth, providing optimal gear range and compatibility with modern mountain bike setups.
- Built with Shimano Mountain compatibility and Shimano Rear Direct Mount for easy installation and precise shifting performance.
- Sleek black finish and rugged construction make the SunRace M900 Rear Derailleur a stylish and reliable choice for aggressive trail riding and all-mountain adventures.
| Specification | Value |
|---|---|
| Manufacturer | SUNRACE |
| Manufacturer Part No. | RDM900.MD00.0S1.BX |
| Universal Product Code | 4710944268430 |
| Invoice Description | DER SUNRACE RDM900 MID 9s DIRECT BK (L) |
| Shipping Weight | 0.74 lbs. |
| Package Dimensions | 6.9 x 4.4 x 3.8 |
| HTS Number | 8714.99.5000 |
| Country of Origin | TAIWAN |
| Model | M900 |
| Speed | 9sp |
| Max | 51 |
| Cage/Mount | Long |
| Ratio | 2to1 |
| Color | BLK |
| Wgt | 259g |
| Type | Mechanical |
- Supplier:
- JBI
- Color:
- Black
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
-
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
