--- product_id: 535273979 title: "INJORA Stainless Steel 40.3:1 Low Range Transmission Gear Set for TRX4M" brand: "injora" price: "¥5825" currency: JPY in_stock: true reviews_count: 7 category: "Injora" url: https://www.desertcart.jp/products/535273979-injora-stainless-steel-40-3-1-low-range-transmission-gear store_origin: JP region: Japan --- # CNC machined stainless steel 40.3:1 ultra-low gear ratio Rust & wear resistant durability INJORA Stainless Steel 40.3:1 Low Range Transmission Gear Set for TRX4M **Brand:** injora **Price:** ¥5825 **Availability:** ✅ In Stock ## Summary > ⚙️ Elevate your RC game with unstoppable torque and precision engineering! ## Quick Answers - **What is this?** INJORA Stainless Steel 40.3:1 Low Range Transmission Gear Set for TRX4M by injora - **How much does it cost?** ¥5825 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/535273979-injora-stainless-steel-40-3-1-low-range-transmission-gear) ## Best For - injora enthusiasts ## Why This Product - Trusted injora brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless Upgrade Fit:** Tailored specifically for TRX4M 1/18 RC Crawlers, ensuring effortless installation and perfect compatibility. - • **Rock-Climbing Powerhouse:** Unlock unstoppable torque with a precision 40.3:1 gear ratio designed for conquering the toughest terrains. - • **Rust-Resistant Reliability:** Crafted from premium stainless steel to resist corrosion and extend your crawler’s lifespan. - • **Precision Engineered Strength:** CNC machined stainless steel gears deliver unmatched durability and smooth performance under pressure. - • **Enhanced Control on Steep Inclines:** Experience slow, steady climbs with improved gear control that transforms your RC crawler’s handling. ## Overview The INJORA Stainless Steel 40.3:1 Low Range Transmission Gear Set is a premium upgrade for TRX4M 1/18 RC Crawlers, featuring CNC machined stainless steel gears that provide exceptional strength, rust resistance, and a powerful ultra-low gear ratio for superior rock-climbing performance and durability. ## Description Product Description Review: Good - Perfect thanks Review: Great cheap upgrade.. - Super quality and not too bad to fit. Super easy to control now on steep inclines, Nice and slow ! Does make your Trx4m a bit noisier though. ## Features - CNC machined, durable and greater strength, long service life. - Stainless steel materials, with excellent rust resistant,enhance wear resistance. - Includes alStainless Steell transmission gears and a 11-tooth motor pinion. - Ultra-low 40.3:1 reduction ratio for maximum rock-climbing power and unstoppable torque. - Suit for TRX4M 1/18 RC Crawler Car Upgrade. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C1CTWH9X | | Age Range Description | Adult | | Best Sellers Rank | 146,793 in Toys & Games ( See Top 100 in Toys & Games ) 246 in Hobby RC Power Plant & Driveline System Accessories | | Brand Name | INJORA | | Colour | Silver | | Country Of Origin | China | | Customer Reviews | 4.8 out of 5 stars 654 Reviews | | Educational Objective | Develop problem-solving skills through convenient assembly and operation of mechanical systems. | | Included Components | 1 Set Transmission Gears | | Indoor Outdoor Usage | Outdoor | | Is Assembly Required | No | | Item Dimensions | 10 x 7 x 2 centimetres | | Item Type Name | 1 Set Transmission Gears | | Manufacturer | INJORA | | Manufacturer Part Number | 4M-36 | | Manufacturer Warranty Description | Note: Suitable for ages 14 and up. If the product has quality problems within 30 days, you can contact us, we will provide good after-sales service. | | Material Type | Steel | | Maximum Age Recommendation | 168 | | Minimum Age Recommendation | 21 | | Model Number | 4M-36 | | Number of Players | 1 | | Operation Mode | Automatic | | Power Source | rechargeable battery | | Set Name | Low Range Transmission Gear Set | | Size | 40.3:1 | | Subject Character | RC Gear | | Supported Battery Types | rechargeable battery pack | | Theme | RC | | Unit Count | 1 1 | ## Images ![INJORA Stainless Steel 40.3:1 Low Range Transmission Gear Set for TRX4M - Image 1](https://m.media-amazon.com/images/I/51kWABhvhtL.jpg) ![INJORA Stainless Steel 40.3:1 Low Range Transmission Gear Set for TRX4M - Image 2](https://m.media-amazon.com/images/I/61yOZ9RG+EL.jpg) ![INJORA Stainless Steel 40.3:1 Low Range Transmission Gear Set for TRX4M - Image 3](https://m.media-amazon.com/images/I/61FIdQdtQaL.jpg) ![INJORA Stainless Steel 40.3:1 Low Range Transmission Gear Set for TRX4M - Image 4](https://m.media-amazon.com/images/I/613O76pU5sL.jpg) ![INJORA Stainless Steel 40.3:1 Low Range Transmission Gear Set for TRX4M - Image 5](https://m.media-amazon.com/images/I/61TknF8eCAL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good *by G***❤ on 18 May 2025* Perfect thanks ### ⭐⭐⭐⭐⭐ Great cheap upgrade.. *by G***N on 9 March 2026* Super quality and not too bad to fit. Super easy to control now on steep inclines, Nice and slow ! Does make your Trx4m a bit noisier though. ### ⭐⭐⭐⭐⭐ 2 years in, still recommend. *by 7***S on 26 April 2023* TL;DR Only one run, so far so good. Running brushless Furitek. Update March 2025. Almost 2 years on these gears and still working great. Still highly recommend this if you want to rock crawl. Too slow for trail or general purpose driving, but a must have if you’re looking for more torque and slow speed crawling. I’ve had no issues out of these gears (or anything on my 4M for that matter) Update: April 2024, 1 year later still runs like the day I installed. I don’t drive it every day but at least a couple times per week. Would buy again. Original review: Installed in my Bronco running bearing kit and the Furitek brushless motor/esc. Gears dropped right in no fitment issues. There has been a clicking ever since installing the new motor but the plastic crawler gears from Traxxas also made a clicking. So I just run it. Worth noting though. These gears appear to be nicely machined. If you’re into rock crawling with your TRX4m, I’d suggest this as your first upgrade along with bearings second. Those two upgrades even on the stock motor and electronics make it a whole new truck. The torque of the stock motor is actually pretty good with the crawl gears. I bought these injora gears because I thought that I had stripped the plastic ones causing them to click when driving, turns out these click too. The quality of injora parts is excellent. I’m also running their brass differential covers front and rear. So far these are a 5 star all day. If anything happens, I’ll update my review. ## Frequently Bought Together - INJORA 15g Stainless Steel 40.3:1 Low Range Transmission Gear Set for TRX4M 1/18 RC Crawler Car Upgrade - INJORA Steel Sealed Bearing Kit for TRX4M 1/18 RC Crawler Upgrade Parts, 22PCS - INJORA Drive Shaft Steel Black Front Rear Center Shaft with D Shaped Hole for TRX4M Defender Bronco 1/18 RC Crawler Upgrade, 22g/Set --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/535273979-injora-stainless-steel-40-3-1-low-range-transmission-gear](https://www.desertcart.jp/products/535273979-injora-stainless-steel-40-3-1-low-range-transmission-gear) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-11*