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For the best in mini bike hydraulic brake kits, check the stocks at OMB Warehouse. We have assured high quality products sourced from leading manufacturers only. The kits are ideal as OEM replacement parts. One of our fastest selling items is the 50'' upgraded hydraulic brake system for Baja doodlebug DB30 motor mini bike. The hose is 50" long and is for use on the left of the 7/8" handlebars. These mini bike hydraulic brake kits direct fit the DB30 series bikes that have the rear disc brake only. Can also be adapted to come Motovox minibikes with a rear disc brake. The master cylinder is filled with fluid but may need to be bled before use. When mounting on DB30 minibikes with disc brakes, you must ensure the rotor is centered in the caliper for proper operation. Another item in the mini bike hydraulic brake kits is the Mini Bike Brake System, a pre-pressurized kit that is ready to be installed for your project. It fits 7/8" handle bars, has a Brake hose 50.5" in length with 2" center to center mount holes on the brake caliper. The kit will not fit Monster Moto / Motovox or Coleman bikes without modifying the mounting bracket on the frame.