{"product_id":"rzeozu-mini-bike-rear-disc-brake-kit-for-79-105cc-ct100u-db30-180mm-rotor-complete-lever-cable","title":"RZEOZU Mini Bike Rear Disc Brake Kit for 79–105cc (CT100U\/DB30) — 180mm Rotor, Complete Lever \u0026 Cable","description":"\u003cstrong\u003eRZEOZU Upgraded Mini Bike Disc Brake Lever Kit is a complete rear disc-brake assembly designed to replace or upgrade braking on compatible 79–105cc minibikes.\u003c\/strong\u003e\n\n\u003cp\u003eIf your minibike uses a rear disc setup and you're looking for a reliable, direct-fit replacement that improves heat dissipation and stopping consistency, this RZEOZU kit is engineered for that purpose. It bundles a disc rotor, rear caliper, brake lever and cable sized specifically to fit a wide range of minibike models from Coleman, Baja, Motovox, Monster Moto and other common manufacturers. The design emphasizes durability and predictable braking without altering your bike's original mounting points.\u003c\/p\u003e\n\n\u003ch3\u003eWhich minibikes will this RZEOZU disc brake kit fit?\u003c\/h3\u003e\n\u003cp\u003eThis kit was created to match common mounting and cable dimensions used on many small-engine minibikes. Check your bike's model and rear caliper mounting distance before ordering; it's intended as a rear brake only.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible models: Coleman CT100U, CC100X; Baja Motorsports Doodlebug DB30; Motovox MBX10\/MBX11; Monster Moto Mega Moto 80\/105; FR* GMB100 and similar 79–105cc minibikes.\u003c\/li\u003e\n  \u003cli\u003eDesigned as a rear caliper replacement — not for front brake swaps.\u003c\/li\u003e\n  \u003cli\u003eVerify your bike’s existing caliper mounting bolt spacing and cable routing before purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the critical dimensions and cable specs?\u003c\/h3\u003e\n\u003cp\u003eDimensions are provided so you can confirm compatibility with your bike’s frame and mounting points. The brake cable and rotor size are purpose-matched for typical minibike rear brake layouts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBrake rotor diameter: 180 mm (7.08\") for reliable contact area.\u003c\/li\u003e\n  \u003cli\u003eCaliper mounting hole distance: 51 mm (2.01\") to match common rear brackets.\u003c\/li\u003e\n  \u003cli\u003eCable overall length: 61\" with 55\" sleeve and 4.96\" moving length for standard routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the upgraded rotor and caliper affect braking performance?\u003c\/h3\u003e\n\u003cp\u003eThe rotor is patterned to disperse heat and resist fade during repeated stopping, while the caliper is built for firm pad engagement. Together they deliver steadier, repeatable braking under normal riding conditions without requiring frame modifications.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRotor geometry improves air flow and heat dissipation under load.\u003c\/li\u003e\n  \u003cli\u003eCaliper set provides consistent pad contact pressure for predictable lever feel.\u003c\/li\u003e\n  \u003cli\u003eDirect-replacement fit keeps installation straightforward and reversible.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I know about installation and compatibility notes?\u003c\/h3\u003e\n\u003cp\u003eInstallation is typical of mechanical disc brake assemblies but requires verifying mount spacing and cable routing. This kit supplies the components sized for rear brake applications; it does not include front-specific calipers or adapters.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm rear caliper mount spacing (51 mm) and rotor clearance before purchase.\u003c\/li\u003e\n  \u003cli\u003eUse standard tools for cable routing, lever installation, and caliper mounting.\u003c\/li\u003e\n  \u003cli\u003eBleeding is not required for mechanical cable-actuated setups—adjust cable tension and pad alignment instead.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Riders or mechanics maintaining or restoring 79–105cc minibikes that use a rear disc brake and need a dependable replacement or upgrade. Choose this RZEOZU kit if you want a bolt-on rear disc solution with defined dimensions, improved rotor cooling, and a complete cable-and-lever assembly that fits popular minibike platforms.\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: Is this kit a front or rear caliper?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This is a rear caliper disc brake kit only; it is not designed for front brake use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will the cable length fit my minibike?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The cable is 61\" overall with a 55\" sleeve; compare to your routing to confirm fit.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"RZEOZU","offers":[{"title":"Default Title","offer_id":48086595076254,"sku":"B0GFZJQ6BL","price":44.88,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/rzeozu-front-packaging-and-components.jpg?v=1785901223","url":"https:\/\/northtrailauto.ca\/products\/rzeozu-mini-bike-rear-disc-brake-kit-for-79-105cc-ct100u-db30-180mm-rotor-complete-lever-cable","provider":"North Trail Auto","version":"1.0","type":"link"}