About The Product
- Box One Chain Tensioners are extruded then CNC-machined from 7075 aluminum for an optimal balance of strength and weight
- A minimalist design adds style while reducing their overall mass
- Laser-etched graphics that include wheel position guides and two 10mm mounting holes with 15mm of adjustment to ensure perfect adjustability
Upgrade your bike's drivetrain with the BOX One Chain Tensioner - the ultimate solution for smooth, reliable chain management. Crafted from premium 7075-T6 aluminum, this high-performance tensioner offers an exceptional blend of durability and lightweight design, making it ideal for mountain biking, BMX, and other aggressive cycling disciplines.
Materials & Engineering Excellence
Constructed through precision CNC machining from extruded 7075 aluminum, the BOX One Chain Tensioner provides robust strength while minimizing weight. Its sleek silver finish not only adds a refined aesthetic but also ensures long-lasting resistance to corrosion and wear. The use of stainless steel hardware further enhances durability, guaranteeing reliable performance in demanding conditions.
Innovative Components & Technology
Designed with two laser-etched graphics, including wheel position guides, the tensioner offers intuitive installation and precise adjustment. Featuring two 10mm mounting holes with 15mm of sequential adjustment, it ensures perfect alignment and tension for a wide range of bike frames. The dual-hole design provides versatility across various setups, accommodating most 10mm axle bikes with ease.
Performance & Compatibility
Engineered for effortless installation on bikes with 10mm (3/8") axles, the BOX One Chain Tensioner fits most frames when you remove and replace your wheels. Its adjustable design helps eliminate chain slack, reduce chain drop, and improve overall drivetrain reliability-critical for aggressive riding styles and long-distance adventures.
Style & Use Case
Sleek, functional, and built for performance, this tensioner is perfect for mountain bikers, BMX riders, and everyday commuters seeking a dependable, low-profile chain management solution. Whether upgrading your existing setup or building a new bike, the BOX One Chain Tensioner delivers consistent tension, enhanced reliability, and a clean, professional look.
Key Features:
- CNC-machined from durable 7075-T6 aluminum for strength-to-weight optimization
- Laser-etched graphics with wheel position guides for precise installation
- Adjustable with two mounting holes and 15mm of fine-tuning
- Compatible with 10mm (3/8") axles, fits most bike frames
- Includes stainless steel hardware for corrosion resistance
- Sold in pairs for complete chain tensioning setup
Optimize your bike's drivetrain with performance-driven engineering and sleek style-choose the BOX One Chain Tensioner for dependable chain stability and a smoother ride.
- Optimize your bike's chain tension with the BOX One Chain Tensioner, precisely machined from lightweight yet durable 7075-T6 aluminum for premium strength and corrosion resistance.
- Featuring laser-etched wheel position guides and two adjustable mounting holes with 15mm of fine-tuning, ensuring accurate chain tension and easy installation on most bikes with 10mm axles.
- Designed exclusively for 10mm (3/8") axle compatibility, this tensioner offers a secure fit and seamless compatibility across various mountain bike and BMX frames.
- Incorporating stainless steel hardware, the BOX One Chain Tensioner enhances durability and longevity, making it ideal for aggressive riding and all-day trail use.
- Sold in pairs, these CNC-machined tensioners combine innovative engineering with sleek silver styling, providing a reliable upgrade for improving chain retention, drivetrain performance, and bike aesthetics.
| Specification | Value |
|---|---|
| Manufacturer | BOX COMPONENTS |
| Manufacturer Part No. | BX-CT1-2X10M-SL |
| Universal Product Code | 616043832012 |
| Invoice Description | CHAIN TENSION ADJ BOX ONE 10mm/2-AXLE HOLE SL |
| Shipping Weight | 0.17 lbs. |
| Package Dimensions | 6 x 3.9 x 0.6 |
| Country of Origin | TAIWAN |
| Size | 10mm |
| Material | 7075AL |
| Color | Silver |
- 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
-
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
