TTSPORT WD4-FIT-REAR 1-Piston Rear Big Brake Kit
- Rear
- 1-piston
- Street
- Passenger Car
- Complete TTSPORT kit — every part for one axle, full manufacturer warranty
- Fitment checked against verified vehicle data before dispatch
- Warranty policy
- Installation support & torque specs
- Insured worldwide shipping — tracked
Overview
The TTSPORT WD4-R is a complete rear-axle big brake kit: two 1-piston forged calipers, two one-piece rotors, one axle set of matched pads, braided lines and the mounting hardware needed to fit them.
It is a direct-mount kit that bolts to the factory caliper mounting ears, so no adapter bracket is required.
Minimum wheel size is 15 in; check spoke clearance against the fitment notes before ordering.
Calipers are supplied in Red, Black, Yellow, Blue, Silver, Gold; lead time is about 15 business days.
Vehicle fitment (3)
- Honda Fit GE 年款与适配来自 TTSPORT 适配表，上线前请复核轮毂避让。
- Honda Fit GK TTSPORT front kit listed: WD4 direct-mount (Ø262 × 21 mm). Minimum wheel size 15 in, minimum spoke clearance 42 mm. The same caliper is listed for GE/GG (2009–2014) and GR/GS (2020–2026) — those generations are separate vehicle pages.
- Honda Fit GR 年款与适配来自 TTSPORT 适配表，上线前请复核轮毂避让。
Fitment is verified against manufacturer data for the listed vehicles, years and markets. Wheel clearance, hub offset and trim-level differences can affect installation — confirm your vehicle before ordering or ask our fitment team.
Not sure? Ask our fitment team →Specifications
| Brand | TTSPORT |
|---|---|
| Part type | Big Brake Kit |
| Axle position | Rear |
| Piston count | 1 |
| Caliper material | Forged aluminum alloy |
| Caliper finish | Electrophoretic coating |
| Caliper mounting | OEM-style direct mount |
| Rotor material | High-Carbon Cast Iron |
| Rotor construction | One-piece rotor |
| Rotor dimensions | Ø260 / 280 mm × 9 mm |
| Rotor face pattern | Curved slot / Grain slot |
| Rotor Material | High-Carbon Cast Iron |
| Rotor Size | Ø260 × 9 mm, Ø280 × 9 mm |
| Caliper Color | Red, Black, Yellow, Blue, Silver, Gold |
| Minimum wheel size | 15" |
| Pad compound (included) | M-01 |
| Brake line construction | Three-layer reinforced construction |
| Brake line material | PTFE inner liner / SUS304 stainless-steel braid / PVC protective outer sheath |
| Brake line fitting | Vehicle-specific fittings; caliper-side and chassis-side fittings vary by application |
| Intended use | Street |
| Vehicle class | Passenger Car |
| SKU | TT-WD4-FIT-REAR-CI-260X9-RED |
| Lead time (approx.) | 15 business days |
Brake pad compounds
| Compound | Intended use | Rotor | Max temp | Avg μ |
|---|---|---|---|---|
| M-01 · STREET included | 街道改装 | 铸铁 | 600 °C | 0.38 |
| M-02 · STREET+ | 街道改装（进阶） | 铸铁 | 650 °C | 0.42 |
Pad compound is matched to the rotor material you select. Iron-compatible pads must not be fitted to carbon-ceramic rotors, or the other way round.
What's in the box
- Brake calipers × 2
- Brake pads (one axle set) × 4
- Brake rotors (one-piece) × 2
- Stainless-steel braided brake lines × 2
- Mounting hardware × 1 set
About the brand
TTSPORT
TTSPORT is MZ Brake's in-house performance brake brand, built around forged aluminium big brake kits supplied as complete one-axle kits.
All TTSPORT products →Questions about this kit
Will this fit my wheels?
Big brake kits need clearance between the caliper and the wheel barrel and spokes. Check the minimum wheel size in the specifications and send us your wheel model if you are unsure — we will confirm with a clearance template.
Do I need new brake lines or fluid?
Every kit includes braided lines and the hardware listed under What's in the box. We recommend fresh DOT 4 fluid and a full bleed after installation.
Can I install this myself?
Installation requires torque tools, a bleed procedure and a bed-in cycle. We recommend professional installation; our installation support page lists torque specs and bed-in steps.
Related big brake kits
Need help choosing?
Not sure what fits? Ask our fitment team.
Send us your year, make, model, wheel size and how you drive — we confirm clearance and recommend the right kit.