# Hobby - [Death Racer](https://wiki.malamaker.org/projects/hobby/death-racer.md): Custom upgrades and mods for Death Racer RC battle vehicles — from cast urethane track shoes to integrated wheelie bar battery covers. Mods by MalaMaker - [Cast Track Shoes](https://wiki.malamaker.org/projects/hobby/death-racer/cast-track-shoes.md): Learn how to use M86 Toys' cast urethane track shoes for Death Racer builds. Includes part links, trimming tips, compatibility info, and tutorial resources. - [Wheelie Bar Battery Cover](https://wiki.malamaker.org/projects/hobby/death-racer/wheelie-bar-battery-cover.md): A drop-in replacement for the Death Racer battery cover that integrates a wheelie bar to prevent traction flip-overs with upgraded tracks. - [Kill Switch Relay Mod (Headshot Trigger)](https://wiki.malamaker.org/projects/hobby/death-racer/kill-switch-relay-mod-headshot-trigger.md): A safer, more reliable way to implement the Death Racer headshot kill switch using a relay. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://wiki.malamaker.org/projects/hobby.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.