It creates fluid pressure within the hydraulic system.īrake Lines – A fluid-resistant rubber pipe covered in braided steel.īrake Pads – Brake pads are what slow and stop your ATV. Some incorporate a hands-free brake holding control.īrake Master Cylinder – The master cylinder lives in the base of the brake lever housing and is serviceable. A hand lever hydraulic brake circuit consists of the following components:īrake Lever – Made from lightweight corrosion-resistant alloy and incorporates brake fluid reservoir with fluid level sight glass. ATV Hydraulic Brake System ComponentsĪll ATV hand-operated braking circuits are hydraulic, as are most foot pedal systems. Hand-operated with mechanical cable & drum brakes front and back, this is a base model set-up.Ī single rear axle brake indicates the lack of a limited-slip differential.(One operated by the hand lever circuit and the other by the foot pedal). Hand-operated hydraulic brake calipers front with a single rear rotor carrying twin calipers.Hand-operated hydraulic brake calipers front and foot brake to a single rear brake caliper.Many modern ATVs however, offer four-wheel braking from the hand lever and just both rear-wheel braking from the foot pedal. Foot operated mechanical lever to remaining rear wheel with drum brake, (or, foot operated hydraulic brake to remaining rear wheel with caliper).Hand operated hydraulic brakes to both front wheels (calipers) and to one rear wheel caliper and,.The brake circuits are either hydraulic or mechanically operated and commonly a mix of both.ĪTV brake setup – A typical setup (brake systems will vary) looks like this: The system is designed so that if one circuit fails, the rider has a backup system, which makes good sense. On a typical ATV, the independent circuits are: What’s a brake circuit? A circuit is a fully independent brake system that (in most cases) shares no brake system components. But all ATV brakes are broken into two separate braking circuits. It’ll help with diagnosing and repair work later.ĪTV braking systems vary, depending on the make, engine size, and year of your bike. I don’t want to get waste high in the weeds here, so I’ll outline in basic language how an ATV braking system works. My brake lever/pedal feels hard and the brakes don’t work – These types of symptoms tend to be related to brake pad and caliper faults.My brake lever/pedal feels soft and the brakes don’t work – These types of symptoms tend to be related to a hydraulic system leak or air in the system.You can tell a lot about the possible cause of a problem by the way a customer describes their issue.
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