Öhlins FGRT 225 upside-down fork for Kawasaki ZX-10R and ZX-10RR 2016 to 2020
02 · Data & docs

The facts.

Technical data
Part NumberFGRT 225
Type CodeFront Fork R&T
Fork Length740 mm
Travel120 mm
Spring Rate10.5 N/mm
Spring Part Number04744-05
Spring Series08790-series
Cartridge Diameter30 mm
Fitment NoteNot compatible with 2018/2019 SE (semi-active) version
DescriptionThe whole story

The Öhlins FGRT 225 is a full upside-down fork assembly engineered for riders who demand all-day confidence whether threading a technical road section or chasing lap times on circuit. Carrying the proven Öhlins 30 mm cartridge kit already race-validated in national Superbike championships, it delivers a composed, communicative ride that stays compliant over long stints without sacrificing the precision you need at the limit.

Key Features

  • Öhlins 30 mm cartridge kit — the same internals trusted in national Superbike championships — delivers deep, consistent damping whether you are on a weekend road ride or a track day.
  • Independent compression and rebound adjustment lets you dial the fork to your weight, tyre choice and circuit conditions without compromise.
  • 120 mm of travel with a 10.5 N/mm spring rate strikes a balance between plush compliance on long rides and taut responsiveness under hard braking.
  • Upside-down architecture reduces unsprung mass for sharper turn-in response and improved braking stability under heavy deceleration.
  • Road & Track type code confirms the fork is designed to perform on both public roads and the circuit, not a pure-race fitment that sacrifices everyday usability.
  • Race-grade build quality housed in an Öhlins finish — a direct aesthetic and functional upgrade over the OEM Kawasaki fork assembly.

Performance & Build Quality

At the heart of the FGRT 225 is the Öhlins 30 mm cartridge system, a platform refined through seasons of top-level Superbike competition. The cartridge controls oil flow independently on compression and rebound, so you can soften the fork for a smooth A-road session in the morning and firm it up for the afternoon track session without reaching for a wrench — just the external adjusters. The 08790-series spring (part number 04744-05) is matched to the fork's 10.5 N/mm rate, providing a progressive feel that loads progressively through a corner rather than diving sharply under braking.

The inverted architecture keeps the heavier, larger-diameter lower leg fixed to the frame while the lighter upper tube moves with the wheel. The result is a measurable reduction in unsprung weight compared to a conventional right-side-up fork, translating into faster wheel tracking over surface irregularities and a more planted front end when you push hard into a late-braking zone.

Road & Track Versatility

Unlike dedicated race forks that sacrifice compliance for outright stiffness, the FGRT 225's Road & Track designation means the spring and valving are calibrated to cope with real-world surface variation. Over a full day in the saddle the damping stays consistent as oil temperature rises, so the fork behaves the same on lap twenty as it did on lap one — a quality that pays dividends in rider fatigue as much as in lap time.

Fitment & Compatibility

The FGRT 225 is a direct fitment for the following Kawasaki models. Note that ABE type approval is in preparation for Germany — please confirm the current homologation status before road registration.

  • Kawasaki Ninja ZX-10R (2016–2020) — ABE in preparation (Germany)
  • Kawasaki Ninja ZX-10RR (2018–2020) — ABE in preparation (Germany)

Important: this fork is not compatible with the 2018/2019 SE (semi-active suspension) variant of the ZX-10R or ZX-10RR.

Fitting and Setup Service

This is not a part to rush. Öhlins recommends installation by an authorised service centre, and we are an authorised Öhlins service centre — fitting, servicing and setup all happen here. Get in touch if you would like the work done with the order.

Specifications

Attribute Detail
Part number FGRT 225
Type code Front Fork R&T
Fork length 740 mm
Travel 120 mm
Spring rate 10.5 N/mm
Spring part number 04744-05
Spring series 08790-series
Cartridge diameter 30 mm
Fitment Kawasaki ZX-10R (2016–2020), ZX-10RR (2018–2020)
FitmentWhich bikes this fits
  • Kawasaki ZX-10R / ZX-10RR (2016–2020)
07 · Support

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