Lyrik D1 Air Spring Upgrade Kit DebonAir+ ButterCup

The Lyrik DebonAir+ Air Spring Upgrade Kit with ButterCup is a complete air spring assembly designed to replace the existing air spring in 2023 and newer Lyrik D1+ forks. It brings the latest DebonAir+ spring curve, offering improved support in the mid-stroke, better small-bump sensitivity, and a more controlled ramp-up as the fork approaches full travel.

ButterCups are pre-installed at the base of the assembly to absorb trail vibration and reduce fatigue through the hands and arms. The updated spring design helps maintain ride height more effectively under load and provides smoother transitions through the travel. It also simplifies setup, giving you a more accurate sag range and support without excessive harshness.

This kit is not only an upgrade for performance, but also the required part when changing the travel length of your Lyrik D1+ fork.

Features

• Complete DebonAir+ air spring assembly

• Updated spring curve for improved mid-stroke support and end-stroke control

• Pre-installed ButterCup to reduce trail vibration and hand fatigue

• Refined positive and negative air volumes for better small-bump response

• Improved ride height and support under braking and compression

• Required component for travel changes

• Designed for trail, enduro, and e-MTB use

Specifications

• Air spring type: DebonAir+

• Includes: Complete air spring assembly with ButterCup

• Travel options: Available in multiple lengths depending on fork model

• Intended use: Trail, enduro, e-MTB

• Weight: Varies slightly depending on travel

• Mount: Direct replacement for Lyrik D1+ (2023 onwards)

Compatibility

Only compatible with 2023 and newer Lyrik D1+ forks using the DebonAir+ system. Not suitable for earlier Lyrik models. Ensure you select the correct travel length to match your frame and geometry requirements.

Installation Notes

Professional installation recommended unless experienced. Replacing the air spring requires full disassembly of the left fork leg. Apply fresh lubrication, ensure correct seal seating, and torque components to factory specification. Reset sag and adjust pressure and volume spacers after installation. Ideal to perform alongside a lower leg service.

Shipping

NSDynamics uses express freight services to ensure fast, reliable delivery for all service jobs and sales orders across Australia. Parcels are shipped via Australia Post eParcel/Parcel Send.

Dispatch and Delivery Timeframes

All items are dispatched once full payment has been received and confirmed. Same-day dispatch is available for orders or completed service jobs paid before 1:00 pm AEST. Any payments received after this cut-off will result in next business day dispatch.

Expected delivery time for most Australian addresses is 1 to 3 business days. Delivery time may vary depending on the customer’s location and other external factors outside NSDynamics’ control. Typical delivery timeframes around Australia are:

• WA: 2-5 working days

• NT: 2-5 working days

• SA: 2-3 working days

• TAS: 1-3 working days

• ACT: 1-3 working days

• NSW: 1-2 working days

• QLD: 1-2 working days

• VIC: 1-3 working days

Tracking and Notifications

All outgoing parcels are tracked. Tracking details will be provided once the item has been dispatched. NSDynamics does not send arrival notifications for inbound service items unless the parcel is damaged in transit or missing important components required for service.

Customers are encouraged to use tracked and insured freight when sending items to NSDynamics. Responsibility for the parcel remains with the sender until the item is received and checked in at the NSDynamics workshop.

Shipping Fees

Return express postage back to the customer is included free of charge for all full Factory and Hyperformance service types. It does not apply to minor repairs or basic services. Shipping charges for parts or accessories are calculated during checkout.

Postage to NSDynamics is the responsibility of the customer unless otherwise arranged. Warranty items may qualify for return postage coverage only if they were originally supplied by NSDynamics and a clear fault is confirmed.

Shipping Insurance

All parcels sent from NSDynamics are covered under NSDynamics’ freight insurance. In the unlikely event that an item is lost or damaged during return transit, it will be replaced with a comparable item where possible. If a parcel arrives damaged, photo evidence must be supplied immediately. NSDynamics is not responsible for parcels where the receiver has chosen the 'Authority To Leave' option. 

Packaging Requirements

Customers must ensure that their suspension is packaged securely and appropriately for shipping. If an item arrives in packaging that is damaged or unsuitable for safe return, NSDynamics may use a heavy-duty branded box and apply a $5 fee to the final invoice. This ensures your suspension is protected during return freight. Customers are encouraged to retain and reuse this box for future service bookings.

Transit Times and Delays

While NSDynamics uses express freight to minimise delivery delays, transit times cannot be guaranteed. NSDynamics is not responsible for delays caused by freight carriers, public holidays, weather events, or other external disruptions. If a parcel has been delayed more than 5 business days beyond its expected delivery date, customers are welcome to contact NSDynamics for support.

Public Holidays

Unfortunately our workshop is closed on all nationwide and Queensland-specific public holidays, so we are not able to ship sales or service orders on these days. Any services or sales orders placed on public holidays will be processed and dispatched the following business day.

New Zealand and International Shipping

NSDynamics offers international shipping to New Zealand via Australia Post. Standard delivery times range from 5 to 10 business days. Customers are responsible for providing accurate delivery details and ensuring someone is available to receive the parcel.

Goods sent to New Zealand may be subject to import duties and GST. NSDynamics does not collect or cover any customs charges. It is the customer’s responsibility to be aware of local import requirements and costs. Orders returned, delayed, or destroyed due to unpaid duties or taxes are not the responsibility of NSDynamics.

In the event that a product needs to be returned from New Zealand, including for warranty inspection, all return postage costs are the responsibility of the customer. NSDynamics does not cover international return freight for items not originally purchased from NSDynamics.

International orders are processed in New Zealand Dollars (NZD), and prices do not include Australian GST. Currency conversions may vary depending on the payment platform used at checkout.