Yepp Maxi Kids Seat Adapters – Front and Rear

This set of low-profile, metal adapters are required for attaching 2 Yepp Maxi EasyFit Child Carriers to the LT2 FlightDeck.


Product Specs

Installation Notes

Previously, Yepp Maxis were attached to a port that was cut into the LT1 version 2 FlightDeck. This new adapter bolts directly to the bike frame and allows for a more secure connection. Cutting the port is still required for proper fit on the deck.


These low-profile, metal adapters are required for attaching the Thule Yepp Maxi Child Seat (not included) to the front and far back end of the LT2 FlightDeck*. These adapters will only work with a Yepp Maxi, NOT a Yepp Nexxt Maxi**.  This bundle includes two adapters. If you are looking for a single adapter and not the pair, you can find the front adapter here and the rear adapter here.

*Some older decks do not require adapters. Not sure if you have a newer LT2 FlightDeck that requires an adapter? Check out this article here: Do I need a Yepp adapter?

**To confirm that you have the correct Yepp seat, please review this article here: Yepp seats that are compatible with Xtracycle decks. 



If you have a 2016 and newer EdgeRunner, Leap, or Cargo Node, you DO need this adapter.

This is not compatible with:

If you have a pre-2016 EdgeRunner, FreeRadical, Cargo Joe, Radish, or Surly Big Dummy, you DO NOT need this adapter.

The Yepp Adapter is not required for the LT1 or LT1 version 2 FlightDecks but is required for the LT2 FlightDeck. Not sure what FlightDeck is on your bike? Check out the FlightDeck Identification Guide to verify.

User Manual

Installation Guide

Front Yepp Seat Installation Instructions

Rear Yepp Seat Adapter Installation Instructions

Here is a picture of the front adapter. The rear adapter looks very similar, but is smaller since it’s to be installed on the tapered end of the FlightDeck. It should be installed with the smaller end facing the rear of the bike, whereas on the front adapter, the smaller end faces the front of the bike.



The Yepp adapter is guaranteed to be free from manufacturing defects for one (1) year from the original date of purchase. Defective products will be repaired or replaced at Xtracycle’s discretion. To determine if a warranty claim is valid you may be required to return the product to Xtracycle for inspection. Xtracycle is not responsible for removal, installation or shipping costs. This warranty applies only to the original buyer and is not transferable. This warranty does not cover damage from use of this product outside of its intended range or that resulting from modification or neglect. It also does not cover wear and tear resulting from the normal use of the product. If think you have a warranty issue, please email us to start the warranty process.


Returns must be approved prior to return shipment by emailing Items must be in new, unopened condition (unless the return is an approved warranty claim – see “Warranty”) and mailed through a traceable mailing service. Returns received in damaged packaging will not be refunded and will not be mailed back to the customer. If the packaging has been opened or altered in anyway (i.e. cut open and taped closed again), the packaging will be considered damaged and the item will not be refunded and will not be mailed back to the customer. Returns due to mis-shipment and return shipping due to mis-ordering will be at the customer’s expense. There are no returns or exchanges on sale items or complete bikes.


Shipping is free to the continental United States for all accessory products.
For shipments to Canada, Alaska, and Hawaii, UPS or FedEx fees will apply.

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