Honda Fit/Jazz Wagon Rear Drum-to-Disc Kit

Whether the Honda Fit Wagon ever makes it to every market is a separate debate — but its rear brakes tell a familiar story: factory drums that hold up fine in daily traffic and give up quickly once the car sees real use. This case, done at a TTSPORT dealer shop, swaps a Fit Wagon's rear drums for a TTSPORT drum-to-disc conversion kit, on a car whose front axle already runs a TTSPORT TT7609 four-piston setup.

Honda Fit Wagon with TTSPORT big brake upgrade parked for a rear drum-to-disc conversion case study

The car had already been through TTSPORT's front-end upgrade — a TT7609 four-piston kit — and the owner reported a real improvement in pedal feel and stopping performance. That result was enough to bring the rear axle in line, swapping the factory rear drums for a TTSPORT drum-to-disc kit built specifically for the Fit Wagon.

Vehicle & Kit Specs

Item	Specification
Vehicle	Honda Fit Wagon (overseas market)
Front kit (prior install)	TTSPORT TT7609 four-piston caliper kit
Rear conversion	TTSPORT rear drum-to-disc kit — rotor, caliper bracket, mounting hardware
Rear rotor	Vehicle-specific dimensions matched to factory rear geometry
Bracket	Custom-tooled, vehicle-specific caliper bracket ("one car, one mold" production)
Hardware	Mounting hardware and fitment components included in the kit

TTSPORT rear drum-to-disc conversion kit components laid out for Honda Fit Wagon install

Because the kit is tooled specifically for the Fit Wagon's rear axle, the rotor and bracket line up with the factory hub and mounting points — no adapters, no reworking the suspension geometry, just a direct swap for the stock drum hardware.

Why It Works

Factory rear drum brake on Honda Fit Wagon before TTSPORT disc conversion

Drum brakes have a built-in weakness: the shoes work inside a closed drum, so the dust and debris generated by friction has nowhere to go. That buildup lowers braking performance over time, makes the wheel more prone to locking, and traps heat instead of shedding it. Compared with an open disc, a drum runs hotter for longer under repeated stops, which is exactly what drives brake fade and inconsistent pedal feel.

Switching to TTSPORT's rear disc conversion kit removes that closed environment. The rotor surface stays exposed to airflow, so heat and debris are cleared instead of trapped, which keeps the friction surface consistent and stops the fade cycle before it starts. Because the rotor and bracket are produced to match the Fit Wagon's factory rear dimensions, the conversion drops in without reworking the hub or suspension geometry.

Open rotor surface sheds heat and debris instead of trapping them like a drum
Vehicle-specific rotor and bracket sizing keeps the swap a direct fit
Matches rear braking performance to the previously upgraded front axle

FAQ

What does the TTSPORT rear drum-to-disc kit include for the Honda Fit Wagon?

The kit is built with vehicle-specific tooling (one car, one mold) so the rotor and caliper bracket match the Fit Wagon's factory rear dimensions, allowing it to replace the stock rear drum setup without altering the rest of the suspension or hub geometry.

What problem does converting the rear drums to discs actually solve?

Drum brakes trap the debris and dust generated during braking inside the drum, which reduces braking performance over time, increases the tendency to lock up, and dissipates heat far less effectively than an open disc setup, making the car more prone to fade and less stable under repeated braking.

Was this Fit Wagon's front brake system already upgraded before the rear conversion?

Yes. The car's front axle was already running a TTSPORT TT7609 four-piston kit, which the owner reported gave a noticeable improvement in braking feel and performance, prompting the rear drum-to-disc upgrade to match.