About The Product
- Genuine DT Swiss Ceramic bearings for various hub styles
- Sold individually
Upgrade your bicycle's performance with the DT Swiss 6903 Hybrid Ceramic Bearing, designed to deliver exceptional durability, minimal rolling resistance, and smooth operation for a variety of hubs. Engineered with precision and premium materials, this 30mm OD, 18mm ID bearing is a must-have service part for discerning cyclists seeking enhanced efficiency and longevity.
Materials & Construction:
Constructed with high-grade silicon nitride ceramic balls, the DT Swiss 6903 Hybrid Ceramic Bearing offers outstanding toughness, corrosion resistance, and lightweight performance. The precision ground steel alloy bearing rings complement the ceramic balls, ensuring optimal fit and high durability under demanding cycling conditions. This advanced material combination results in dramatically reduced friction and wear, ensuring long-lasting service life.
Performance & Engineering:
Engineered for precision, these bearings minimize rolling resistance, translating to smoother pedaling and improved power transfer. Thanks to tight manufacturing tolerances, the bearings guarantee consistent performance over time. The ceramic balls' hardness and resilience not only extend service life but also maintain high performance even in challenging environments, including wet conditions and mud.
Components & Technology:
Featuring a dual-seal design, the black dust cover faces inward, protecting against dirt and debris, while the tan external seal defends against moisture and contaminants. This sealing technology preserves lubrication quality and prevents contaminants from compromising bearing integrity, ensuring optimal performance across diverse riding terrains.
Style & Use Case:
Ideal for use in various bicycle hubs-road, mountain, or gravel-this hybrid ceramic bearing offers a sleek, professional upgrade for maintenance or custom builds. Its compact size and durable construction make it perfect for cyclists demanding reliable, high-performance components that deliver smooth rotations and reduced maintenance needs.
Innovative & Differentiating Features:
- Silicon nitride ceramic balls for maximum toughness and low weight
- Precision-ground steel alloy rings for exact fit and durability
- Dual-seal protection designed for reliable sealing and longevity
- Reduced rolling resistance facilitating faster, more efficient rides
Product Specifications:
- Manufacturer Number: 1803
- Material: Ceramic (Silicon Nitride)
- Bearing Inner Diameter (ID): 18mm
- Bearing Outer Diameter (OD): 30mm
- Width: 7mm
- Fits: Various hubs
- Model: 6903 Ceramic
- Bearing Number: 6903 Special
Upgrade your bicycle's performance with the DT Swiss 6903 Hybrid Ceramic Bearing-engineered for cyclists who demand precision, durability, and efficiency. Perfect for maintenance, repair, or custom builds, this service part is your gateway to a smoother, faster ride.
- High-performance DT Swiss 6903 Bearing Sinc Hybrid Ceramic features advanced silicon nitride ceramic balls for maximum durability and minimized rolling resistance, ensuring smooth and efficient ride quality.
- Constructed with precision-ground steel alloy rings and high-grade ceramic materials, this bearing offers exceptional durability, corrosion resistance, and low friction performance even in challenging riding conditions.
- Designed for versatile compatibility, the 30mm OD and 18mm ID dimensions fit a range of high-end hub systems, making it an ideal service part for upgrading or maintaining premium bicycle wheels.
- Innovative sealing technology includes a black dust cover facing the hub and a tan external seal, providing superior protection against dirt, water, and debris for prolonged bearing life.
- Engineered by DT Swiss with exacting tolerances and high-end materials, the 6903 Ceramic Hybrid Bearing enhances hub performance, reduces maintenance needs, and is perfect for mountain biking, road cycling, or gravel riding applications.
| Specification | Value |
|---|---|
| Manufacturer | DT SWISS |
| Manufacturer Part No. | HSBXXX00N2620S |
| Universal Product Code | 7630013947585 |
| Invoice Description | BEARING DT CARTRIDGE 6903 CERAMIC 18iX30oX7w |
| Shipping Weight | 0.08 lbs. |
| Package Dimensions | 1.05 x 1.1 x 0.3 |
| Country of Origin | TAIWAN |
| Model | 6903 Ceramic |
| Fit | Various hubs |
| I.D. | 18mm |
| O.D. | 30mm |
| Width | 7mm |
| Weight | 13.8g |
| 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
-
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
