# Kids bike seat and trailer hitch installation time How long does it take to install a child bike seat or a trailer hitch? THULE thru axle Maxle \(M12 x 1\.75\): Initial assembly takes about 5–10 minutes\. THULE thru axle Shimano \(M12 x 1\.5\): Initial assembly takes about 5–10 minutes\. THULE Yepp Nexxt Maxi: no checked fact gives an installation time; The exact frame\-mounted seat required little seat assembly beyond removing packaging and routing the support bars\. Mounting the block used four of the supplied bolts and the included Allen key; two bolt lengths were supplied for different tube thicknesses\. ### 1. [THULE thru axle Maxle \(M12 x 1\.75\)](/products/ucp/anbbaby-com/4649735192662) (sold by anbbaby\.com) Initial assembly takes about 5–10 minutes\. - Install time: Initial assembly takes about 5–10 minutes\. (manual) - Fit or tools: The adapter is for connecting a bike trailer to a bicycle with a Maxle 12 mm rear axle\. (guide) ### 2. [THULE thru axle Shimano \(M12 x 1\.5\)](/products/ucp/anbbaby-com/4649681190998) (sold by anbbaby\.com) Initial assembly takes about 5–10 minutes\. - Install time: Initial assembly takes about 5–10 minutes\. (manual) - Fit or tools: The adapter is for connecting a bike trailer to a bicycle equipped with a Shimano 12 mm rear axle\. (guide) ### 3. [THULE Yepp Nexxt Maxi](/products/ucp/anbbaby-com/4699359510614) (sold by anbbaby\.com) The exact frame\-mounted seat required little seat assembly beyond removing packaging and routing the support bars\. Mounting the block used four of the supplied bolts and the included Allen key; two bolt lengths were supplied for different tube thicknesses\. - Install time: - - Fit or tools: The exact frame\-mounted seat required little seat assembly beyond removing packaging and routing the support bars\. Mounting the block used four of the supplied bolts and the included Allen key; two bolt lengths were supplied for different tube thicknesses\. (review) Every value in the table is a fact RoboTrunk checked, linked to the page it came from\. A dash means no checked fact fills that cell\. Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live\. Written 2026-10-17T19:25:03.495Z. This page is published by RoboTrunk, a store built for shopping agents. The store named on this page sells the product and ships it. RoboTrunk is not the seller and never holds the money. Buying works in one path. RoboTrunk's tools prepare a checkout at that store, then hand back a short-lived link. The person approves the total; once RoboTrunk has checked the store's total against it, the person is given the checkout link to tap in their own browser, or, if the person prefers and gives permission, their agent may open the link and finish there, and payment always happens on the store's own checkout page. RoboTrunk never takes the payment or sees a card. Where the rest of this site is: - /agent/story.md is what RoboTrunk is and how it works, in full. - /agent/tools.json is every tool, its arguments and its answers. - /agent/merchants is every store you can buy from through RoboTrunk. - /products/ucp is every store's indexed products. - /products/search is one search across every store, in plain words. - [What RoboTrunk is](/agent/story.md) - [Every tool, in your browser through WebMCP](/agent) - [The tools and how to call them](/agent/tools.json) - [The stores you can buy from](/agent/merchants) - [Every store's products](/products/ucp) - [Search every store at once](/products/search)