⟲ 360° — drag meThe facts.
| Brand | Öhlins |
|---|---|
| Part number | FKR 108 |
| System | TTX 25 (Twin Tube X-Flow) |
| Piston rod diameter | 8 mm |
| Spring series | 04744 |
| Included spring rates | 9.0, 9.5, 10.0 N/mm |
| Intended use | Race track only |
| Road approval | Not approved for public road use (StVZO) |
| Fitment | Ducati Panigale V4 S / V4 S Corse / V4 Speciale (2018–2020) |
DescriptionThe whole story▼
Purpose-built for the demands of competitive track use, the Öhlins FKR Cartridge Kit Racing (TTX 25) FKR 108 transforms the front-end behaviour of the Ducati Panigale V4 S with race-proven TTX technology and a spring vacuum system that delivers consistent, measurable damping performance lap after lap. This is a race-only component — engineered without compromise for riders who demand the highest standards of chassis control and tuneability.
Key Features
- Latest-generation TTX technology ensures reliable, repeatable damping output under sustained track conditions.
- Spring vacuum system maintains stable internal pressure for straightforward servicing between sessions.
- Newly developed 8 mm piston rod significantly improves initial response and ride stability compared to conventional cartridge designs.
- Reduced internal pressure lowers stiction, allowing the fork to react accurately to small track surface irregularities.
- Linear damping characteristic gives the rider a predictable, consistent feel across a wide range of adjustment settings.
- Extended tuning range through multiple compression and rebound adjustment stages — optimise setup for each circuit and riding style.
- Three spring rates included (9.0, 9.5, and 10.0 N/mm from the 04744 series) to cover a broad range of rider weights and circuit requirements.
Race Engineering and Build Quality
Öhlins developed the FKR Cartridge Kit to slot directly into the existing Ducati Panigale V4 S fork legs, replacing the OEM internals with a fully race-specification cartridge assembly. The TTX (Twin Tube X-Flow) system routes oil through a cross-flow valve arrangement that maintains consistent damping force regardless of fork velocity — a fundamental advantage over single-tube designs when corner frequencies are high and input loads vary rapidly. The 8 mm piston rod is a key differentiator: the increased cross-section resists flex under braking loads, keeping the damping geometry precise during the critical phase of corner entry where stability is non-negotiable.
Track Use and Setup
Because the FKR 108 ships with three spring rates, a team can select the most appropriate rate for a given rider and circuit without ordering additional parts. The linear damping map makes changes in compression and rebound adjustment immediately interpretable — one click feels the same whether you are at full soft or mid-range, which simplifies data correlation and shortens setup time during practice sessions. Installation must be carried out by an authorised Öhlins Service Centre; a full installation manual is included in the box.
Safety and Road-Use Notice
This kit is certified for racing applications exclusively. It holds no approval for use on public roads under German road-traffic regulations (StVZO) and must not be fitted to any motorcycle used on public highways. Compliance with the regulations of the relevant racing series and circuit authority remains the responsibility of the team or individual rider.
Fitment and Compatibility
- Ducati Panigale V4 S (2018–2020)
- Ducati Panigale V4 S Corse (2019–2020)
- Ducati Panigale V4 Speciale (2018–2020)
Fitting and Setup Service
Öhlins recommends that its suspension is fitted by an authorised service centre. We are one, and we do the work here: installation, servicing and a proper setup. Ask us and we will include it with the order.
Specifications
| Attribute | Detail |
|---|---|
| Brand | Öhlins |
| Part number | FKR 108 |
| System | TTX 25 (Twin Tube X-Flow) |
| Piston rod diameter | 8 mm |
| Spring series | 04744 |
| Included spring rates | 9.0, 9.5, 10.0 N/mm |
| Intended use | Race track only |
| Road approval | Not approved for public road use (StVZO) |
| Fitment | Ducati Panigale V4 S / V4 S Corse / V4 Speciale (2018–2020) |
What's includedEverything in the box▼
- 1x Öhlins FKR 108 TTX 25 cartridge kit
- 1x spring 9.0 N/mm (04744 series)
- 1x spring 9.5 N/mm (04744 series)
- 1x spring 10.0 N/mm (04744 series)
- 1x installation manual
FitmentWhich bikes this fits▼
- Ducati Panigale V4 S (2018–2020)
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