ZCOO S001 EX front brake pads for the Yamaha NIKEN GT, part Z-S001-EX
02 · Data & docs

The facts.

Technical data
Part numberZ-S001-EX (EAN 4950545750129)
Pad codeZRM-S001C
CompoundZCOO EX Race - ceramic-sintered
Pad dimensions69.5 x 50.5 x 8.8 mm (L x H x thickness)
Caliper familySumitomo (Yamaha)
PositionFront axle only
FitmentYamaha NIKEN GT, 2019-2024
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

The NIKEN GT uses its front brake in a hundred ordinary stops for every hard one. ZCOO covers the Yamaha NIKEN GT with the S001, a 69.5 by 50.5 mm face carried on 8.8 mm of total section. In the S001 the mixture is ceramic-sintered EX Race, mixed for a flat curve rather than a sharp first bite.

Key Features

  • The S001 shape also serves 27 further machines in the ZCOO 2026 catalogue, so availability stays good
  • Ceramic sintering keeps the coefficient of friction stable across the temperature swing a NIKEN GT sees in a single descent
  • Stable friction from the first squeeze to the wear limit, so the NIKEN GT brakes the same on a cold morning and at the bottom of a pass
  • Two pads per pack, matched as a set for one Sumitomo caliper
  • Selected by ZCOO for the Yamaha NIKEN GT out of the sixteen shapes in the 2026 programme
  • The S001 is the thickest friction stack ZCOO builds: 69.5 mm by 50.5 mm, 8.8 mm deep

Construction and Material Quality

The S001 shares its construction with the pads ZCOO supplies to endurance teams. On a 69.5 by 50.5 mm face the backing plate decides whether the pad wears evenly or takes on a taper. It is also why ZCOO can quote fade resistance beyond 600 degrees for the S001 without qualifying it.

Performance and Feel

Between roughly zero and 600 degrees the S001 holds a near-constant friction coefficient. The harder EXC Endurance mixture bit sooner and lasted longer, but asked considerably more of a NIKEN GT disc than the S001 in EX Race does. On a machine that covers the distance the NIKEN GT covers, service life is part of the argument too.

Fitment and Compatibility

This reference is catalogued for the Sumitomo-equipped Yamaha NIKEN GT, 2019 to 2024. The same S001 shape covers 27 further machines in the 2026 catalogue. Before ordering, check that your caliper takes a pad of 69.5 mm length and 50.5 mm height. Front axle exclusively - there is no rear S001.

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-S001-EX (EAN 4950545750129)
  • Pad code: ZRM-S001C
  • Compound: ZCOO EX Race - ceramic-sintered
  • Pad dimensions: 69.5 x 50.5 x 8.8 mm (L x H x thickness)
  • Caliper family: Sumitomo (Yamaha)
  • Position: Front axle only
  • Fitment: Yamaha NIKEN GT, 2019-2024
  • 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 S001 EX brake pads for one caliper
FitmentWhich bikes this fits
  • Yamaha NIKEN GT (2019–2024)
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