Honda Fit/Jazz Big Brake Kit Upgrade / TTSPORT Direct-Mount Series

The Honda Fit (Jazz) is one of the most common cars on the road, and like a lot of budget-focused hatchbacks, it ships with a front-disc/rear-drum setup to keep manufacturing costs down. Drum brakes work fine in everyday driving, but they fade faster than discs when you lean on them hard — which is exactly why rear drum-to-disc conversions for the Fit stay in steady demand.

A disc brake (hydraulic/oil brake) is a rotor bolted to the wheel hub with a caliper straddling its edge; high-pressure fluid pushes the pads against the rotor to slow the car. A drum brake instead relies on shoes pressing outward against the inside of a rotating drum — an older mechanical layout still common on rear axles of cars like the Fit.

Why Drum Brakes Fall Short

Drum brakes are prone to locking up, and because the drum is an enclosed housing, heat has nowhere to go. On sustained or hard braking that trapped heat builds up and the brakes lose stopping power — what's known as brake fade. The shoe-to-drum contact is also curved rather than flat, so it's a point-to-face interface instead of a full-surface one, which lowers braking efficiency. And because the drum is sealed, debris from worn shoes can't clear out, which eventually affects the contact surface between shoe and drum and drags down overall performance.

Vehicle & Kit Specs

Why It Works

Disc brakes are open to the airflow, so they shed heat quickly and resist the fade that plagues a sealed drum. The pad rides flat against the rotor over a consistent contact area, which gives a quicker, more even brake response. Slotted rotors — like the one in this kit — cut grooves across the face to clear dust and pad material as they're generated, keeping the rotor surface cleaner than a closed drum ever can.

• Open rotor design vents heat instead of trapping it, resisting fade under repeated stops
• Flat pad-to-rotor contact reacts faster and more consistently than curved shoe-to-drum contact
• Bracket and rotor are sized to the Fit's factory dimensions, so it's a direct bolt-on with no spacers

Disc brakes generally pull up in a shorter distance than drums, and in an emergency stop that gap can matter. It's the main reason the "front disc, rear drum" cost-saving layout on cars like the Fit remains a popular candidate for a rear-axle upgrade.

Installation Gallery

TTSPORT's Honda Fit rear drum-to-disc kit is built in China with over a decade of market history behind it, and installs straightforwardly onto the factory rear axle.

Frequently Asked Questions