ZCOO N004 EX front brake pads for the Hyosung GT250Ri, part Z-N004-EX
02 · Data & docs

The facts.

Technical data
Part numberZ-N004-EX (EAN 4950545750075)
Pad codeZRM-N004C
CompoundZCOO EX Race - ceramic-sintered
Pad dimensions75.0 x 55.3 x 8.0 mm (L x H x thickness)
Caliper familyNissin
PositionFront axle only
FitmentHyosung GT250Ri, 2015-2015
Contents per pack1 set = 2 pads for one caliper; a machine with twin front discs needs two packs
Road approvalNo ECE R90 type approval documented - track and competition use
ManufacturerOkada Corporation, Japan
DescriptionThe whole story

A GT250Ri rider learns the limit of a brake pad long before the limit of the engine. On this machine the reference is the N004, 75.0 mm of friction face in the Nissin caliper. The compound is EX Race, which on the Hyosung GT250Ri builds force with the lever instead of ahead of it.

Key Features

  • No proprietary tooling needed: the N004 drops into the Nissin caliper the GT250Ri already has
  • Predictable in the wet, because the compound does not need temperature to start working on a GT250Ri
  • Shipped in ZCOO's own packaging with the ZRM-N004C code printed on it, so a repeat order needs no guesswork
  • Sized for the braking energy a 249 cc machine generates, not scaled down from a larger reference
  • Wear indicator geometry unchanged from the standard Nissin pad, so the usual inspection still applies on the GT250Ri
  • Forms a thin ceramic film on the rotor in use, so disc wear on the Hyosung GT250Ri stays far below what a conventional sintered race pad causes

Construction and Material Quality

Construction on the N004 follows ZCOO's racing practice throughout. The N004 plate is laser-cut from an alloy chosen for stiffness at working temperature, not at room temperature. It is also why ZCOO can quote fade resistance beyond 600 degrees for the N004 without qualifying it.

Performance and Feel

EX Race trades a little initial aggression for a friction level that does not move on the Hyosung GT250Ri. Across 1 model year of the GT250Ri the behaviour is the same, because the compound is. For a rider working on braking technique on a GT250Ri, that is exactly what an upgrade should buy.

Fitment and Compatibility

The N004 is ZCOO's listed reference for the Hyosung GT250Ri between 2015 and 2015. The N004 fits the front axle of the GT250Ri and nothing else. The same N004 shape covers 12 further machines in the 2026 catalogue. Before ordering, check that your caliper takes a pad of 75.0 mm length and 55.3 mm height.

Road Approval

No ECE R90 type approval is documented for this pad. It appears neither in ZCOO's own catalogue nor on the European distributor's site, and no approval number is printed on the packaging data available to us. ZCOO itself describes the compound as suited to competition machines and road machines alike, but that is a description of the mixture, not a type approval. Until the distributor confirms an approval in writing, treat this as a track and competition part: in Germany a replacement brake pad without ECE R90 approval may not be fitted to a motorcycle used on public roads. Ask us before ordering if you need this clarified for your machine.

Specifications

  • Part number: Z-N004-EX (EAN 4950545750075)
  • Pad code: ZRM-N004C
  • Compound: ZCOO EX Race - ceramic-sintered
  • Pad dimensions: 75.0 x 55.3 x 8.0 mm (L x H x thickness)
  • Caliper family: Nissin
  • Position: Front axle only
  • Fitment: Hyosung GT250Ri, 2015-2015
  • Contents per pack: 1 set = 2 pads for one caliper; a machine with twin front discs needs two packs
  • Road approval: No ECE R90 type approval documented - track and competition use
  • Manufacturer: Okada Corporation, Japan
What's includedEverything in the box
  • 1 set = 2 ZCOO N004 EX brake pads for one caliper
FitmentWhich bikes this fits
  • Hyosung GT250Ri (2015–2015)
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08 · Paddock

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