About The Product
- Unidirectional carbon BMX rim designed for use with disc brake or as a brakeless front wheel
- Full Toray T700 carbon fiber composite material
- Drilled for both Presta and Schrader with included plug for unused valve hole
- 220lb rider weight limit
- Race use only
Elevate your BMX riding experience with the Acme UD Carbon Alienation 20-inch Rim - a premium, lightweight, and high-performance wheel designed for serious riders and competitive racing. Crafted from full Toray T700 carbon fiber composite, this unidirectional (UD) rim offers unrivaled strength, stiffness, and durability, making it an ideal choice for both disc brake systems and brakeless front wheel setups.
Materials & Engineering:
Constructed entirely from advanced Toray T700 full carbon fiber, the Acme UD Carbon Alienation rim provides exceptional strength-to-weight ratio and superior performance. Its unidirectional carbon layup ensures optimal alignment of fibers for increased stiffness and impact resistance, crucial for high-speed BMX racing and aggressive riding styles. The double-wall construction enhances durability while keeping weight minimal.
Performance & Technology:
Designed specifically for race use, this rim supports rider weights up to 220 lbs, ensuring robustness under intense riding conditions. It features a tubeless-compatible profile, allowing for lower tire pressures and improved traction. The 36 drilled holes accommodate both Presta and Schrader valves, with an included plug for unused holes, providing versatility and convenience. The rim's 406 x 21mm dimension balances aerodynamic efficiency and lateral strength, making it ideal for rapid acceleration and sharp cornering.
Components & Compatibility:
This 20-inch rim boasts a 28mm outer diameter and a 21mm internal width, supporting a wide range of tires for various riding needs. With an effective rim diameter (ERD) of 390mm, it ensures precise spoke tension and wheel lacing. Suitable for both disc brake setups and brakeless configurations, the Acme UD Carbon Alienation is engineered for racing, freestyle, and advanced BMX disciplines.
Style & Use Case:
Sporting a sleek white finish, the Acme UD Carbon Alienation wheel not only performs at a high level but also adds a stylish, minimalist aesthetic to your bike. Its race-specific design makes it the perfect upgrade for competitive riders seeking maximum performance, reduced weight, and reliable durability on the race track or pump track.
Innovative & Differentiating Features:
- Full Toray T700 unidirectional carbon fiber for lightweight strength
- Tubeless-compatible profile for improved traction and ride comfort
- Drilled for both Presta and Schrader valves, including multiple valve hole plugs
- Designed for high-impact BMX racing and aggressive riding styles
Upgrade your BMX setup with the Acme UD Carbon Alienation 20-inch Rim - where advanced materials, innovative engineering, and race-ready performance come together. Dominate the racecourse or hit the streets with confidence in a rim built for serious riders who demand the best.
- Elevate your BMX performance with the Acme UD Carbon Alienation 20in wheel, crafted from full Toray T700 unidirectional carbon fiber for maximum strength-to-weight ratio.
- Designed for versatility, this lightweight rim is suitable for disc brake use or riding brakeless, providing optimal control and braking power in BMX racing and freestyle situations.
- Features drilled ports compatible with both Presta and Schrader valves, including a plug for unused holes, ensuring easy maintenance and reliable tubeless compatibility for a seamless ride.
- Built to endure demanding race environments, this wheel has a robust 220lb rider weight limit and is engineered for high-performance race use only, delivering durability where it counts.
- With its sleek white finish and 36-drill hole configuration, the Acme UD Carbon Alienation wheel combines style and advanced engineering, making it the perfect premium upgrade for serious BMX riders.
| Specification | Value |
|---|---|
| Manufacturer | ALIENATION |
| Universal Product Code | 888571111550 |
| Invoice Description | RIM AN (AM) 20 406x21 ACME UD CARBON TBLS DISC 36 WH |
| Shipping Weight | 0.57 lbs. |
| Package Dimensions | 16.23 x 1.1 x 16.23 |
| HTS Number | 8714.92.1000C2 |
| Country of Origin | CHINA |
| Size | 20in |
| Brand | Alienation |
| Model | Acme UD |
| ISO | 406 |
| Width ID | 21 |
| Width OD | 28 |
| Profile | 20 |
| Wall | Dbl |
| Color | White |
| Hole Count | 36 |
| Valve | PV/SV |
| Weight | 260g |
| ERD | 390 |
| Tire Compatibility | Tubeless Compatible |
| Search Color | White |
| Spoke Size | 14g |
- 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
-
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
