Air Spring Kit - Boxxer D1 RockShox, Air Spring Upgrade Kit - Debonair+ W/ Butter Cup (Includes Air Shaft Assembly, Buttercup, Seal Head) - 38mm Boxxer D1(2024+). Model ID: FS-UPK-DBP-A1. Item Specifications: Misc, 180mm,

RockShox Air Spring Kit for BoXXer D1, 180mm

Reference Number: 3LE6DA

Upgrade Your Ride with the RockShox Air Spring Kit for BoXXer D1 - 180mm

Optimize your downhill and enduro performance with the RockShox Air Spring Kit for BoXXer D1, a premium upgrade designed for aggressive riding and maximum control. Crafted with precision engineering and innovative technology, this air spring kit enhances your fork's responsiveness, stability, and durability on tough terrains.

Materials & Engineering Excellence

Constructed from high-quality, durable materials, the RockShox Air Spring Kit features a lightweight aluminum air shaft assembly and a reliable seal head ensuring smooth operation and longevity under demanding conditions. The inclusion of the Butter Cup, a standardized component for improved airflow and damping consistency, guarantees optimal compression and rebound performance.

Components & Technology

This upgrade kit includes an Air Shaft Assembly, Butter Cup, and Seal Head, all engineered to work seamlessly with the 38mm stanchions of the 2024+ Boxxer D1 forks. The Debonair+ air spring design provides superior small bump sensitivity and enhanced mid-stroke support, giving you confident handling on technical descents and jumps. The SRAM Model ID: FS-UPK-DBP-A1 ensures compatibility and straightforward installation.

Performance & Use Case

Designed specifically for the 180mm travel BoXXer D1 forks, this air spring kit is ideal for downhill racers, enduro riders, and gravity enthusiasts seeking precise tuning and consistent performance. The Debonair+ technology delivers a plush feel and improved damping control, reducing rider fatigue and maximizing traction over rough terrain.

Style & Application

Whether you're upgrading your existing fork or building a custom downhill rig, this air spring kit not only boosts performance but also maintains the sleek, professional look of your setup. Perfect for mountain bikers looking to optimize their suspension for competitive racing or extreme trail riding.

Innovative Features & Benefits

- Easy-to-install upgrade for BoXXer D1 forks (2024+)

- Enhances small bump sensitivity and mid-stroke support with Debonair+ technology

- Durable, lightweight materials for reliable performance

- Includes Butter Cup for superior airflow and damping consistency

- Optimized for 180mm travel setups, perfect for aggressive riding styles

Maximize your downhill potential with the RockShox Air Spring Kit for BoXXer D1. Experience smoother damping, improved control, and Ride with confidence on even the most challenging trails.

  • Enhanced Air Spring Performance Specifically engineered for the 2024 RockShox Boxxer D1, this Debonair+ upgrade kit features the Butter Cup design for smoother compression and better small bump sensitivity.
  • Designed with high-quality materials, including a precision-crafted air shaft assembly and durable seals, ensuring long-lasting performance and reliability in aggressive downhill and enduro riding.
  • Utilizes the latest SRAM Model ID: FS-UPK-DBP-A1 technology to optimize air spring responsiveness and damping control, delivering a more consistent and confident ride on challenging terrains.
  • Perfect for riders seeking to upgrade their 180mm travel Boxxer D1 forks, this air spring kit enhances plushness, reduces stiction, and improves overall fork feel, making it ideal for technical descents and high-impact riding.
  • Compact and easy to install, the RockShox Air Spring Kit offers an innovative solution for customization and maintenance, allowing riders to fine-tune their suspension for optimal performance and zero added weight to their bike setup.

Why 365 Cycles?

365 Cycles is an Authorized RockShox Dealer, and we offer the Full RockShox Warranty!

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365 Cycles delivers all your cycling needs fast! We don't waste time preparing your order. Our priority is to serve our customers first and foremost. If you need help picking the right product, have questions about bike component compatibility, or just want to geek out about bikes we are here 7 days a week! Simply put, we are bike experts from dirt to tarmac and want to make sure you get the full 365 Cycles experience when you shop with us.

At 365 Cycles our mission is to simplify the shopping experience. We want to get you the right product in a quick time frame and be here if you need help with questions, warranty, friend to talk to, etc.

We’re dedicated to building lasting relationships with our customers, communities, and team members. We combine the knowledge and service of a traditional bicycle shop with the convenience of shopping in your own home.





Shipping & Handling

Most orders placed during the workweek before 1:30 pm EST ship the same day, but in rare cases (peak season/holiday periods) handling time can take up to 48 hours. If you have questions regarding shipping estimates, please let us know prior to placing your order. There is a direct signature requirement for all orders over $500.

Please allow 1-2 business days for your order tracking to update.

  • Cut off for SAME DAY SHIPPING- 1:30 pm EST Monday - Friday
  • Friday afternoon -Sunday orders ship the following Monday
  • Due to carrier restrictions orders shipped to: PO Box, HI, AK, & PR 365 Cycles may use a comparable service to what was selected.

Combined Shipping Discounts

To offer customers savings on shipping, we offer discounts when shipping multiple items from our store. We cannot issue refunds on shipping once an order is finalized so please follow the 5 steps below and ask if you are having trouble with the discount before you make a purchase.

  1. Be sure you are using the US site: https://www.ebay.com
  2. Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
  3. Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
  4. Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
  5. You’ll need to change the shipping method to Priority on every item in your cart before the rate can be calculated.

Returns

365 Cycles offers returns for 30 days on new items in their original, intact packaging. Return shipping for ALL orders are to be paid by the buyer. Please be sure to read our return policy entirely and if you have any questions, please contact Customer Service.

Full refunds are issued on items that are brand new and we are able to resell as new. 365 Cycles reserves the right to deny returns that are outside of policy including, but not limited to, used items, items missing original packaging, items with damaged manufacturer packaging, or international orders. Return orders must be shipped in a box or bubble mailer. Items shipped without an outer box will incur a restocking fee. You will be contacted through eBay if your return is ineligible for a full refund.

Returns must be initiated within 30 days from purchase date through your Purchase History under My eBay.

If we make an error in shipping, please contact us -- we will ship out the correct item and provide a free prepaid return label as quickly as possible!

Exchanges

If you need to exchange your order, the fastest and easiest way to do this is to reorder. We will ship your new order immediately and, in the meantime, please initiate a return through eBay on the original item and return it. We will refund for the returned item once it is received back.



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Company Details

365 Cycles
1180 Enterprise Rd
East Petersburg, PA 17520
United States

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