Öhlins FKR Cartridge Kit Racing TTX 25 FKR 110 – Honda CBR 600 RR (2013–2018)

Engineered for riders who demand the absolute best from their CBR 600 RR on track, the Öhlins FKR Cartridge Kit Racing TTX 25 (FKR 110) is a closed, spring-pressurised fork cartridge system that sets a new benchmark in front-end build quality and materials. Where conventional gas-pressure systems rely on a separate gas chamber prone to leakage and inconsistent behaviour, the TTX 25 architecture eliminates those compromises from the ground up.

Key Features

• Spring-pressurised closed cartridge system — no gas charge means no pressure loss through seal leakage and far simpler long-term maintenance
• TTX technology with a newly developed piston and 8 mm piston rod reduces internal friction and hydraulic pressure, delivering faster, more progressive response at both high and low suspension speeds
• Linear damping characteristics provide predictable, consistent feedback lap after lap — critical when dialling in braking points and corner entry
• Three springs included in the 04744 series (9.0 N/mm, 9.5 N/mm and 10.0 N/mm) so you can tailor spring rate to rider weight and circuit demands without additional purchase
• 120 mm stroke delivers the travel range required for serious track work on the CBR 600 RR platform
• Premium Öhlins internals throughout — the same race-derived components trusted in World Superbike and Moto2 programmes

TTX Technology — Why It Matters

The TTX (Through-rod eXchange) principle places the damping piston on an 8 mm rod that passes through the entire cartridge body. This twin-tube, spring-pressurised design equalises pressure on both sides of the piston, which dramatically reduces the stiction and cavitation that plague conventional open-bath cartridges under hard braking. The outcome is a fork that reacts instantaneously to surface inputs, holds its set-up through a full race distance and rewards precise rider inputs with genuine feedback rather than vague, wallowing responses.

Track Performance & Setup

The FKR 110 is an uncompromising racing component. The three-spring set allows a proper spring-rate ladder test during pre-session set-up, meaning you arrive at the right rate through data rather than guesswork. Combined with the predictable linear damping curve of the TTX piston, even incremental clicker adjustments produce clearly perceptible, repeatable changes — exactly what a rider and technician need when chasing lap time. An installation manual is included with the kit; Öhlins strongly recommends fitting by an authorised Öhlins Service Centre to ensure correct preload settings and bleed procedure.

Fitment & Compatibility

The Öhlins FKR 110 Cartridge Kit Racing TTX 25 is designed and validated for the Honda CBR 600 RR covering model years 2013 to 2018. Please verify your model year before ordering. This is a motorsport product and is not approved for use on public roads.

Specifications

• Part number: FKR 110
• System type: Spring-pressurised closed cartridge (TTX 25)
• Stroke: 120 mm
• Piston rod diameter: 8 mm
• Included springs (04744 series): 9.0 N/mm, 9.5 N/mm, 10.0 N/mm
• Fitment: Honda CBR 600 RR (2013–2018)
• Intended use: Track / motorsport only — not road legal
• Installation manual: Included