About The Product
- All new 3-speed hub
- 3-speed internal gear hub with 6-bolt disc
- Compatible with 8 and 9 speed cassettes
- Compatible with standard MTB shifters for triple front derailluers
Upgrade your bicycle's drivetrain with the Sturmey Archer CSRK3 3x8-Speed Hub Kit - engineered for versatile performance, reliability, and seamless shifting. This high-quality, 36-hole black internal gear hub is the perfect solution for commuters, urban riders, and touring cyclists seeking durable, low-maintenance gearing that enhances ride comfort and efficiency.
Materials & Construction:
Crafted with precision-engineered components, the CSRK3 features a robust internal gear system housed within a lightweight aluminum shell, weighing only 1,155 grams. Its corrosion-resistant black finish not only ensures durability but also adds a sleek, modern aesthetic to your bike.
Performance & Engineering:
Designed with a 3-speed internal gear hub compatible with 8 and 9-speed cassette systems, the CSRK3 offers smooth, reliable shifting across varied terrains. The innovative planetary gear technology ensures consistent power transfer, reduced chain wear, and low maintenance, making it ideal for daily commuting and long-distance touring.
Components & Technology:
Equipped with a 6-bolt disc brake interface, this hub seamlessly integrates with modern disc brake setups for enhanced stopping power. Compatibility with standard MTB shifters for triple front derailleurs allows easy, intuitive gear changes. The hub features precise bearing systems (model 180) and a 135mm over-locknut dimension, ensuring stability and long-lasting performance.
Style & Use Case:
Designed for versatility, the CSRK3 hub complements a wide range of bikes, from urban commuters to touring bikes. Its sleek black finish and compact profile suit both sporty and casual aesthetics, making it suitable for versatile cycling applications. Whether upgrading an existing bike or building a custom setup, this hub kit delivers reliable gearing in all environments.
Innovative & Differentiating Features:
What sets the Sturmey Archer CSRK3 apart is its compatibility with multiple cassette levels and standard shifters, providing adaptable gearing options for different riding styles. Its all-in-one kit includes a trim, no-shifter design, and is optimized for easy installation and maintenance, ensuring you get the most out of your cycling experience.
Key Specifications:
- Weight: 1155g
- Max Gear Ratio: 19.5
- Axle Compatibility: 3/8x26t with B/O-NUT
- Gear Configuration: 3-speed internal / 8-speed cassette
- Brake Interface: 6-bolt disc compatible
- Hub Spacing: 135mm over-locknut dimension
- Suitable for 36H rims
Enhance your bike's capability with the Sturmey Archer CSRK3 3x8-Speed Hub Kit - engineered for superior performance, durability, and style. Order now to enjoy smooth shifts, reliable stopping power, and all-weather riding confidence.
- High-performance 3-speed internal gear hub with durable steel housing engineered for reliable urban and touring bikes, offering smooth gear transitions and enhanced durability.
- Compatible with 8- and 9-speed cassettes and standard MTB shifters, simplifying upgrade compatibility and ensuring versatile shifting options for varied riding styles.
- Constructed with precision components, including a 180-degree bearing model and lightweight design at just 1155 grams, delivering efficient power transfer and minimized rider fatigue.
- Featuring 6-bolt disc brake compatibility for superior stopping power in all weather conditions, making it ideal for commuting, mountain biking, and adventure riding.
- Designed with innovative internal gear technology and a sleek black finish, this kit provides effortless shifting performance, stylish appeal, and long-lasting reliability for any cycling enthusiast.
| Specification | Value |
|---|---|
| Manufacturer | STURMEY ARCHER |
| Manufacturer Part No. | HKF3KQ.SBS0.0E0.BX |
| Universal Product Code | 4710944258400 |
| Invoice Description | HUB RR S/A 3sp CSRK3 3x8sCASS 6B 36 BK w/TRIM KIT/NO-SHIFTER 135/180mm NON-ROTARY |
| Shipping Weight | 3.18 lbs. |
| Package Dimensions | 8.7 x 7.2 x 5.15 |
| HTS Number | 8714.93.1500 |
| Country of Origin | TAIWAN |
| Gears | 3s Int/8s Cass |
| Spoke Count | 36H |
| Spacing / Axle | B/O-NUT 3/8x26t |
| Color | Blk |
| Wt | 1155g |
| Brake Type | 6B |
| OLD | 135 |
| PCD-L | 66 |
| PCD-R | 66 |
| LTF-L | 36 |
| LTF-R | 48 |
| CTF-L | 31.5 |
| CTF-R | 19.5 |
| Axle Length | 180 |
| Hole Diameter | 2.8 |
- 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
