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
Discover the CST Premium Big Boat 20x4.0 Wire TPI Bike Tire - the ultimate choice for riders seeking durability, performance, and style on the trail or urban streets. Designed with advanced engineering and premium materials, this large-volume tire offers an exceptional ride experience tailored for fat bikes, cruiser bikes, and electric bikes that require a robust and reliable off-road or all-weather solution.
Materials & Construction:
Crafted from high-quality, durable rubber compounds and featuring a wire bead construction, the CST Big Boat 20x4.0 provides superior strength and longevity. Its robust casing ensures resilience against rough terrains, while the carefully engineered sidewalls deliver excellent puncture resistance for confident rides in diverse environments.
Performance & Engineering:
Equipped with a carefully designed low-profile tread pattern, the Big Boat offers a harmonious balance between rolling resistance, grip, and durability. The large volume, 20x4.0 size, allows for lower pressures, enhancing comfort and traction across loose, muddy, or uneven terrains. Micro-knurled tread sections and wide siping provide optimized grip while maintaining efficient rolling for commuting, trail riding, or beach cruising.
Components & Technology:
The tire features a wire bead for enhanced durability and secure fitment on a variety of fat bike rims. Its TPI (threads per inch) construction ensures a flexible yet sturdy sidewall, improving the tire's ability to absorb shocks and impacts, making it ideal for rugged off-road use. The sleek black with skin-colored sidewall (Bk/Skn) design offers a classic look that complements any fat bike build.
Style & Use Case:
Designed with versatility in mind, the CST Big Boat 20x4.0 excels in multi-surface environments - from sandy beaches and snow-covered trails to urban streets and mountain paths. Its standard style seamlessly blends functionality with a classic aesthetic, making it suitable for adventure riders, fat bike commuters, and recreational cyclists who demand both performance and style.
Innovative Features & Differentiators:
This tire's micro-knurled tread sections generate additional grip without sacrificing rolling efficiency, while the wide siping increases lateral traction on slippery surfaces. The large volume size provides a comfortable ride with improved load-carrying capacity, making it perfect for carrying gear or tackling extended off-road adventures.
Upgrade your fat bike with the CST Premium Big Boat 20x4.0 Wire TPI Tire - engineered for durability, optimized for grip, and built for countless adventures across challenging terrains. Enhance your ride today with a tire that combines performance, style, and reliability for exceptional cycling experiences.
- Optimized for 20x4.0 fat bikes, this CST Premium Big Boat tire delivers exceptional traction and control in all terrains, making it ideal for both urban commuting and off-road adventures.
- Constructed with durable wire bead and high-quality rubber compounds, this tire offers enhanced longevity, reliable performance, and resistance to punctures on rugged trails and city streets alike.
- Featuring a low-profile tread with micro-knurled sections and wide siping, it strikes the perfect balance between rolling resistance, grip, and durability for versatile all-weather riding.
- Designed with a round profile and large volume capacity, the CST Big Boat provides smooth handling, increased stability, and a comfortable ride during long-distance cycling sessions.
- With its classic black sidewalls and sleek style, this tire seamlessly combines performance-engineered components with a modern look, making it a versatile upgrade for fat bike enthusiasts seeking reliable, high-performance tires.
| Specification | Value |
|---|---|
| Manufacturer | CST PREMIUM |
| Manufacturer Part No. | TB00480500 |
| Universal Product Code | 6933882533141 |
| Invoice Description | TIRE CSTP BIG BOAT 20x4.0 BK/SK WIRE |
| Shipping Weight | 2.00 lbs. |
| Package Dimensions | 23 x 1 x 23 |
| HTS Number | 4011.50.0000C2 |
| Country of Origin | CHINA |
| Style | Standard |
| Size | 20x4.0 |
| ISO | 406 |
| Bead | Wire |
| Tread/SW | Bk/Skn |
| PSI | 30 |
| Weight | 941 |
| 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
