About The Product
- Large volume, durable tire with a round profile featuring low-rise, micro-knurled tread sections and wide siping
- Low profile tread with lots of working edges strikes a balance between rolling resistance, durability and grip
- EBIKE25 - has achieved a passing rating for use with E-Bikes up to 25kph
Experience robust performance and durability with the CST Premium Big Boat 26x4.0 Wire TPI Bicycle Tire - the ultimate choice for fat tire enthusiasts and e-bike riders seeking versatility and reliability. Crafted with high-quality materials and engineered for optimal riding conditions, this large-volume tire seamlessly blends style, function, and innovative technology to elevate your cycling experience.
Materials & Construction:
Made from premium rubber compounds with a wire bead construction, the CST Big Boat 26x4.0 delivers exceptional durability and longevity. Its rugged sidewalls and reinforced tread ensure resistance to cuts, punctures, and wear, making it ideal for challenging terrains and extended rides.
Performance & Engineering:
Designed with a round profile for balanced handling, this tire features low-rise, micro-knurled tread sections combined with wide siping. These features provide enhanced grip, control, and stability on various surfaces while minimizing rolling resistance for efficient pedaling. The tire's optimized tread pattern offers excellent traction in loose, muddy, or uneven terrains, making it perfect for fat biking adventures.
Components & Technology:
The Big Boat tire is compliant with E-Bike 25 standards, boasting a passing rating for use with e-bikes traveling up to 25 km/h. Its wire bead construction ensures a secure fit on rims, while the innovative tread design creates multiple working edges, improving grip and braking performance.
Style & Use Case:
Designed for fat bikes, mountain biking, gravel adventures, and e-bike commuting, the CST Big Boat 26x4.0 is a versatile choice for riders seeking a rugged, reliable tire capable of handling diverse terrains. Its sleek black-on-black color scheme complements all bike styles, offering a stylish yet functional upgrade to your cycling setup.
Key Features:
- Large-volume 26x4.0 fat bike tire with wire bead for durability
- Micro-knurled low-profile tread with wide siping for superior grip and stability
- Optimized for off-road, mountain biking, gravel, and e-bike use
- E-Bike 25 compatible for electric-assisted riding
- ISO 559 compatibility for seamless rim fit
- Ideal for challenging terrains, extended rides, and adventure cycling
Upgrade your Fat Bike or E-Mountain Bike with the CST Premium Big Boat 26x4.0 Wire TPI Tire - where innovative engineering meets all-terrain performance for serious cyclists.
- Maximize your fat tire bike's performance with the CST Premium Big Boat 26x4.0 Wire Tire, crafted from high-quality durable rubber materials designed for off-road and all-weather riding.
- Featuring advanced micro-knurled tread sections and wide siping, this tire offers exceptional grip, low rolling resistance, and enhanced stability for aggressive riding and varied terrain.
- Engineered with a round profile and low-rise tread, the Big Boat provides a balanced combination of durability, traction, and ride comfort, making it ideal for both casual cruising and intense trail adventures.
- Optimized for e-bike use, the CST Big Boat 26x4.0 Wire Tire is E-BIKE25 rated, ensuring reliable performance and safety for electric-assisted riding up to 25kph.
- Designed for versatility and style, this standard 26-inch by 4.0-inch fat tire is perfect for beach cruisers, mountain bikes, and fat bikes, providing a bold aesthetic and dependable everyday use.
| Specification | Value |
|---|---|
| Manufacturer | CST PREMIUM |
| Manufacturer Part No. | TB00279100 |
| Universal Product Code | 6933882532977 |
| Invoice Description | TIRE CSTP BIG BOAT 26x4.0 BK/BK WIRE |
| Shipping Weight | 3.10 lbs. |
| Package Dimensions | 29 x 2 x 29 |
| HTS Number | 4011.50.0000C2 |
| Country of Origin | CHINA |
| Style | Standard |
| Size | 26x4.0 |
| ISO | 559 |
| Bead | Wire |
| Tread/SW | Bk/Blk |
| PSI | 30 |
| TPI | 60 |
| E-Bike Rating | E25 |
| Tread Style | Smooth |
- 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
