About The Product
- Replacement Tension/Bottom pulley
- Sold individually
- Resin composite construction
- 11 tooth
Upgrade Your Bicycle's Precision and Performance with the Sunrace SP853 Rear Derailleur Pulley Set
Maximize your bike's shifting efficiency and reliability with the Sunrace SP853 Rear Derailleur Pulley Replacement Set. Crafted from durable resin composite materials, these high-performance pulleys are engineered to withstand the rigors of competitive cycling, mountain biking, and everyday rides. Designed for compatibility across most derailleur systems, they provide a seamless upgrade to restore optimal drivetrain performance.
Materials & Engineering Excellence
Constructed with premium resin composite, the Sunrace SP853 pulleys deliver exceptional durability, lightweight performance, and smooth operation. The resin bushings reduce friction for quieter, more efficient shifting, while the precision 11-tooth design ensures compatibility with a wide range of derailleur models, making them an ideal maintenance solution for cyclists seeking reliability and longevity.
Components & Technology
This replacement pulley set features an innovative tension and bottom pulley configuration, optimized to maintain consistent chain tension and improve drivetrain responsiveness. Sold individually, these pulleys are easy to install and quickly restore the smooth, precise gear shifts you rely on-perfect for both casual riders and competitive cyclists.
Style & Use Case
Designed for versatility, the Sunrace SP853 pulleys are suitable for mountain bikes, road bikes, and hybrid bikes, providing a budget-friendly upgrade without compromising on quality. Their sleek, black resin construction complements any bike's aesthetic while enhancing overall performance in various terrains and riding conditions.
Innovative Features
Featuring an 11-tooth design, the Sunrace SP853 pulleys reduce drivetrain wear and improve overall efficiency. Whether replacing worn-out OEM pulleys or upgrading for increased longevity, these components help keep your bike running smoothly mile after mile.
Upgrade your bike's drivetrain today with the Sunrace SP853 Rear Derailleur Pulley Set-crafted for durability, designed for performance, and Built for the Ride.
- Premium resin composite construction for durable, lightweight performance, ensuring smooth shifting and long-lasting wear under demanding cycling conditions.
- Designed to fit most derailleur models, providing a versatile and cost-effective solution for replacing worn or damaged pulleys without the need for full derailleur replacement.
- 11-Tooth design optimized for precise chain guidance and reduced friction, enhancing overall drivetrain efficiency and power transfer.
- Engineered with high-quality bushings and tension components for reliable suspension and minimal noise during aggressive riding or extended descents.
- Easy to install as a replacement tension and bottom pulley set, making maintenance quick and convenient to keep your bike shifting like new.
| Specification | Value |
|---|---|
| Manufacturer | SUNRACE |
| Manufacturer Part No. | SP853.0001.BS0 |
| Universal Product Code | 4710944238037 |
| Invoice Description | DER PART SUNRACE PULLEY SP853 11T RESIN/BUSHING TENSION/BOTTOM |
| Shipping Weight | 0.04 lbs. |
| Package Dimensions | 4.2 x 3.4 x 0.35 |
| HTS Number | 8714.99.5000 |
| Country of Origin | TAIWAN |
| Model | Replacement Pulley set |
| Max | Single |
| Compatibility | Fits most derailleurs |
- 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
