{"product_id":"injora-gold-viper-1721-2800kv-brushless-motor-for-1-18-trx4m-ascent-18-upgrade","title":"INJORA Gold Viper 1721 2800KV Brushless Motor for 1\/18 TRX4M Ascent-18 Upgrade","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe INJORA Gold Viper 1721 brushless motor combines high-speed capability with compact 1\/18 scale design, engineered for TRX4M and Ascent-18 systems. The vibrant gold finish and a reinforced protective sleeve at the wire outlet pair style with durability, helping you keep top performance even in rugged use.\u003c\/p\u003e\n\u003ch3\u003eSmart compatibility and setup\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eNote: Compatible with INJORA MBL32 ESC and QuicRun Mini24 ESC. Not compatible with other ESCs.\u003c\/li\u003e\n  \u003cli\u003eNote: Works with TRX4M and Ascent-18 transmissions; not suitable for 370 transmissions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePerformance and tuning\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBest suited for rigs under 700 g; for heavier builds, consider the 2204 Fat Viper for stronger drag brake performance.\u003c\/li\u003e\n  \u003cli\u003eSome mid-throttle noise is normal with this high-speed open-rotor design and does not indicate a defect.\u003c\/li\u003e\n  \u003cli\u003e3S batteries are highly recommended for optimal performance and smoother low-speed control.\u003c\/li\u003e\n  \u003cli\u003eDelivers smooth, linear control at low speeds with punchy, confident performance at higher speeds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAppearance and durability\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eNew gold finish adds a striking look while the protective sleeve at the wire outlet boosts durability during field use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePractical takeaways\u003c\/h3\u003e\n\u003cp\u003ePair this motor with the noted ESCs and transmissions for a responsive, scale-accurate drive. If your rig stays light and nimble, you may experience a precise feel at low throttle and strong acceleration when you raise the pace. Consider the fitment and weight of your build to determine if the 1721 is the right choice, or if the larger Fat Viper would better suit your heavier configuration.\u003c\/p\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 ESCs are compatible with the INJORA Gold Viper 1721 2800KV motor?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Compatible with INJORA MBL32 ESC and QuicRun Mini24 ESC; other ESCs are not supported.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What rigs is this motor best suited for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Ideal for 1\/18 TRX4M or Ascent-18 builds under ~700g; heavier rigs may benefit from the Fat Viper.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"INJORA","offers":[{"title":"Default Title","offer_id":46523724857543,"sku":"B0FY61R3DR","price":31.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/2355\/7319\/files\/injora-gold-viper-1721-motor-closeup.jpg?v=1778318136","url":"https:\/\/toyterrax.com\/products\/injora-gold-viper-1721-2800kv-brushless-motor-for-1-18-trx4m-ascent-18-upgrade","provider":"ToyTerrax","version":"1.0","type":"link"}