{"product_id":"injora-overdrive-12t-22t-underdrive-24t-10t-alloy-helical-gear-set-for-trx4m-1-18-rc-crawler-upgrade-kit","title":"INJORA Overdrive 12T\/22T \u0026 Underdrive 24T\/10T Alloy Helical Gear Set for TRX4M 1\/18 RC Crawler – Upgrade Kit","description":"\u003cdiv\u003e\n  \u003ch2\u003eOverview\u003c\/h2\u003e\n  \u003cp\u003eUpgrade your TRX4M 1\/18 RC crawler with INJORA's alloy steel overdrive and underdrive gear set. Crafted from CNC-machined 20CrMo alloy steel, these gears deliver robust strength and precise engagement while staying quieter and smoother than stock plastic gears.\u003c\/p\u003e\n  \u003cp\u003eDesigned for front and rear axles, this kit lets you tailor torque distribution for demanding terrains, helping you maintain control while navigating tight turns and steep inclines.\u003c\/p\u003e\n  \u003ch3\u003eWhat is included\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e12T\/22T overdrive gears for the front axle\u003c\/li\u003e\n    \u003cli\u003e24T\/10T underdrive gears for the rear axle\u003c\/li\u003e\n    \u003cli\u003eHardware and mounting hardware for TRX4M compatibility\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003ch3\u003eKey benefits\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e9% front overdrive and 16.7% rear underdrive to adjust drivetrain balance\u003c\/li\u003e\n    \u003cli\u003eLower vibration, reduced noise, and improved wear resistance compared to stock plastic gears\u003c\/li\u003e\n    \u003cli\u003eEasy installation; a straightforward upgrade to improve steering and crawling dynamics\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eReal-world use cases include tight rock gardens, ladder courses, and rough off-road trails where precise steering and controlled torque help you maintain momentum. While results vary by driving style and terrain, many users report a more engaging, responsive feel under challenging conditions.\u003c\/p\u003e\n  \u003ch3\u003eFitment and compatibility\u003c\/h3\u003e\n  \u003cp\u003eThe gear set is compatible with TRX4M models and fits both the front and rear axles, making it a versatile upgrade for your 1\/18 crawler.\u003c\/p\u003e\n  \u003ch3\u003eWhy choose INJORA\u003c\/h3\u003e\n  \u003cp\u003eINJORA combines precision machining with durable alloy steel to deliver a reliable upgrade. This kit replaces fragile plastic gears with stronger components designed for hobby-level abuse and longer service life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is included in the INJORA TRX4M overdrive and underdrive gear set?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The kit includes CNC machined 12T\/22T front overdrive gears and 24T\/10T rear underdrive gears, made from 20CrMo alloy steel, with TRX4M installation hardware.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this gear set improve steering and crawling on TRX4M?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it can improve steering response and crawling stability by adjusting torque distribution, depending on terrain, with straightforward installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"INJORA","offers":[{"title":"Default Title","offer_id":46524351971527,"sku":"B0BZLBWSRV","price":34.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/2355\/7319\/files\/injora-12t22t-overdrive-gear-front-trx4m.jpg?v=1778328133","url":"https:\/\/toyterrax.com\/products\/injora-overdrive-12t-22t-underdrive-24t-10t-alloy-helical-gear-set-for-trx4m-1-18-rc-crawler-upgrade-kit","provider":"ToyTerrax","version":"1.0","type":"link"}