Honda Fit/Jazz CROSSTAR MAX Drum-to-Disc Brake Kit

The 2020 Honda Fit CROSSTAR MAX (GS1) still runs rear drum brakes from the factory, and on this CVT-equipped car that meant a rear end that couldn't keep pace with how hard the front end could work. In stock testing the Fit CROSSTAR MAX pulled a 41.6-meter stopping distance from 100-0 km/h with a peak of 1.16G, and the ABS system stayed busy the whole way down, limited mostly by tire grip rather than the brakes themselves. To clean up the rear half of the equation, this car got a TTSPORT rear drum-to-disc conversion kit, still riding on its stock 15-inch wheels.

2020 Honda Fit CROSSTAR MAX rear wheel with TTSPORT drum-to-disc brake conversion installed

Instead of a partial brake swap, the owner went with TTSPORT's dedicated Fit rear kit built specifically for this platform — a single-piston caliper paired with a 260x9mm one-piece rotor and stainless steel lines, all engineered to bolt into the space where the drum used to live.

Vehicle & Kit Specs

Item	Specification
Vehicle	2020 Honda Fit CROSSTAR MAX, CVT, chassis code GS1, stock 15-inch wheels
Rear caliper	TTSPORT single-piston caliper, drum-to-disc conversion
Rear rotor	TTSPORT 260x9mm one-piece high-carbon heat-treated slotted rotor
Lines	TTSPORT stainless steel brake lines
Hardware	Mounting hardware to convert the factory rear drum brakes to disc

TTSPORT single-piston rear caliper and 260mm rotor kit for Honda Fit GS1

According to TTSPORT, the kit was developed off Honda's own factory data for the Fit — matching hub geometry and mounting points so the caliper bracket and rotor line up in the stock location, down to the fastener sizing.

Why It Works

A drum brake works by pushing shoes outward against the inside of a spinning drum — it's compact and cheap, but the enclosed design traps heat and the self-adjusting mechanism makes pedal feel less consistent as the shoes wear. Swapping to a disc setup exposes the rotor to open air, so heat sheds faster and the pedal stays more predictable trip after trip.

On a car as light as the Fit, a single-piston caliper is enough to generate real, linear clamping force — the source notes it's a clear step up from the factory single-piston drum hardware it replaces.
The 260x9mm one-piece rotor runs stable and vibration-free compared to a drum, which helps rear brake response stay consistent under repeated stops.
The kit was designed around the stock hub and mounting points, so it clears the factory 15-inch wheels with no spacers or wheel changes needed.
Stainless steel lines resist the swelling that rubber lines can develop under repeated pedal pressure, keeping pedal input more direct.

FAQ

What's included in the TTSPORT rear drum-to-disc kit for the Honda Fit?

The kit includes a TTSPORT single-piston rear caliper, a 260x9mm one-piece high-carbon heat-treated slotted rotor, stainless steel brake lines, and the mounting hardware needed to replace the factory rear drum brakes.

Will this kit fit under the stock 15-inch wheels?

Yes. This install was done on a 2020 Honda Fit CROSSTAR MAX running its factory 15-inch wheels, and the kit was fitted without any wheel change.

Does converting the rear drums to discs actually help braking on a car like the Fit?

The source notes the factory Fit CROSSTAR MAX posted a 100-0 km/h stopping distance of 41.6 meters with a peak of 1.16G, and the ABS worked hard due to tire grip limits. The rear disc conversion is intended to improve pedal linearity and rear brake stability versus the factory drum setup, though exact post-upgrade stopping numbers weren't retested.