Öhlins FKR 105 TTX 25 fork cartridge kit for Kawasaki ZX-10R and ZX-10RR⟲ 360° — drag me
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part numberFKR 105
SystemTTX 25 cartridge kit
Spring series04744
Included spring rates9.0, 9.5, 10.0 N/mm
Piston rod diameter8 mm
Intended useTrack / race use only
Road approvalNone (not StVZO approved)
FitmentKawasaki Ninja ZX-10R (2016–2026), ZX-10RR (2018–2026) — not compatible with 2018 SE (semi-active) version
DescriptionThe whole story▼

Engineered exclusively for track use, the Öhlins FKR Cartridge Kit Racing (TTX 25) FKR 105 brings the full force of Öhlins TTX technology to the Kawasaki Ninja ZX-10R and ZX-10RR. This is a race-grade suspension upgrade that meets the rigorous demands of competitive circuit riding — a direct, no-compromise solution for riders who need certified, consistent damping performance lap after lap.

Key Features

  • Latest-generation TTX technology delivers a linear damping characteristic, maximising traction and chassis stability under race conditions.
  • Oil-only (non-gas-pressure) design eliminates the risk of pressure loss through seal leakage, ensuring consistently even performance throughout a race session.
  • Newly developed piston combined with an 8 mm piston rod reduces internal pressure for faster response and improved rideability.
  • Enables finer, more precise suspension tuning — expanding the setup options available to professional race engineers.
  • Includes three spring rates (9.0, 9.5 and 10.0 N/mm, 04744 series) to suit a range of rider weights and circuit configurations.
  • Installation instructions included; fitting should be carried out by an authorised Öhlins Service Centre.

TTX Technology — Why It Matters on Track

The TTX (Twin Tube X) principle separates compression and rebound circuits within the cartridge, allowing each to be optimised independently without the compromises inherent in conventional gas-pressure systems. Because the FKR kit operates without a high-pressure gas charge, it is inherently more service-friendly and structurally simpler — there are fewer failure modes and maintenance intervals are more predictable. The result is a fork that behaves identically on the first flying lap and the last.

The 8 mm piston rod — larger in diameter than standard — stiffens the overall assembly and reduces flex under the extreme braking and cornering loads that characterise Superbike-class racing. Paired with the new-generation piston, it drops internal friction and allows the fork to follow surface irregularities on kerbs and bumpy sections with a speed and precision that simply cannot be achieved with a conventional cartridge.

Setup and Tuning

Three spring rates are supplied as standard, giving the technician or rider a starting point across a broad spread of conditions. The FKR system's architecture supports a wider range of damping adjustment than a retrofitted emulator or standard OEM cartridge, so race engineers have genuine scope to dial in the fork to a specific circuit layout, tyre compound or riding style. All adjustment procedures are covered in the enclosed installation documentation.

Important — Race Use Only

The Öhlins FKR 105 cartridge kit is designed and approved for closed-circuit racing only. It carries no road-use type approval and does not comply with German road traffic regulations (StVZO). It must not be fitted to any motorcycle used on public roads. Fitting should be entrusted to an authorised Öhlins Service Centre to ensure correct installation and to preserve the integrity of the damping system.

Fitment and Compatibility

This kit is confirmed to fit the following Kawasaki models:

  • Kawasaki Ninja ZX-10R (2016–2026)
  • Kawasaki Ninja ZX-10RR (2018–2026)

Not compatible with the 2018 SE (semi-active) version.

Fitting and Setup Service

We are an authorised Öhlins service centre, so the installation does not have to be your problem: we fit and set up Öhlins components in our own workshop. Ask us when you order and we will include the work.

Specifications

Attribute Detail
Brand Öhlins
Part number FKR 105
System TTX 25 cartridge kit
Spring series 04744
Included spring rates 9.0, 9.5, 10.0 N/mm
Piston rod diameter 8 mm
Intended use Track / race use only
Road approval None (not StVZO approved)
Fitment Kawasaki Ninja ZX-10R (2016–2026), ZX-10RR (2018–2026)
What's includedEverything in the box▼
  • 1x Öhlins FKR 105 TTX 25 cartridge kit (pair)
  • Springs: 9.0 N/mm (04744 series)
  • Springs: 9.5 N/mm (04744 series)
  • Springs: 10.0 N/mm (04744 series)
  • Installation instructions
FitmentWhich bikes this fits▼
  • Kawasaki ZX-10R/RR (2016–2026)
07 · Support

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08 · Paddock

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