The facts.
| Brand | K-Tech |
|---|---|
| Part Number | 155-020-010-010 |
| System | Direct Damping System (DDS) closed cartridge |
| Fitment | Aprilia RS 660 (2020-2026) |
| Spring Series | 36-260 |
| Inner Diameter | 20 mm |
| Outer Diameter | 32 mm |
| Length | 698 mm |
| Piston Diameter | 20 mm |
| Stroke | 125 mm |
DescriptionThe whole story▼
Developed for the highest levels of circuit racing and proven in the British Superbike Championship and the Isle of Man TT, the K-Tech DDS Closed Cartridge Kit transforms the front-end feel of the Aprilia RS 660 into something genuinely race-ready. The patented Direct Damping System eliminates cavitation entirely, delivering consistent, precise damping control whether you are attacking a fast sweeper or braking hard into a hairpin.
Key Features
- Pressurised Direct Damping System (DDS) with a 20 mm piston and 31 mm control pistons for exceptional oil flow and fade-free performance on track
- Patented anti-cavitation design keeps damping characteristics stable under extreme and sustained use
- Asymmetric damping circuits improve chassis dynamics and sharpen response time through direction changes
- 30 clicks of independent compression and rebound adjustment for precise, repeatable setup
- 18 mm preload adjustment to dial in sag and balance for any rider weight or circuit
- Supplied with 3 pairs of springs and a dedicated spring-change tool — everything needed to optimise setup from the first session
Race-Proven Engineering
The DDS cartridge architecture sets K-Tech apart from conventional emulator-style upgrades. By pressurising the damping circuit and routing oil through large-diameter 31 mm control pistons, the system maintains a consistent damping curve even when fork oil temperature rises during a long stint. The result is a front end that feels the same on lap one as it does on lap twenty — a genuine competitive advantage when consistency matters most.
The 30-click compression and rebound adjusters give setup engineers and club racers alike the resolution to make meaningful changes between sessions. Suggested baseline settings of 16 clicks compression and 18 clicks rebound provide a solid starting point, while the 18 mm preload range accommodates a wide spread of rider weights and spring rates from the included 36-260 series spring pairs.
Road Use
The DDS kit is equally rewarding on the road. Riders who use the Aprilia RS 660 as a daily performance machine will notice improved tracking over mid-corner bumps, more progressive braking feel, and reduced fork dive under heavy deceleration. The ability to switch spring rates quickly using the included tool means the kit adapts as riding conditions or loads change.
Fitment & Compatibility
This cartridge kit is engineered specifically for the Aprilia RS 660 covering model years 2020 to 2026. Part number 155-020-010-010 should be quoted when ordering to ensure the correct specification is supplied.
Specifications
- Spring series: 36-260
- Inner diameter: 20 mm
- Outer diameter: 32 mm
- Length: 698 mm
- Piston diameter: 20 mm
- Stroke: 125 mm
- Piston rod diameter: 8 mm
- Compression adjustment: 30 clicks (suggested baseline: 16 clicks)
- Rebound adjustment: 30 clicks (suggested baseline: 18 clicks)
- Preload adjustment: 18 mm (suggested baseline: 8 mm)
- Included: 3 pairs of springs and spring-change tool
- Part number: 155-020-010-010
What's includedEverything in the box▼
- K-Tech DDS closed cartridge kit
- 3 pairs of springs (36-260 series)
- Spring-change tool
FitmentWhich bikes this fits▼
- Aprilia RS 660 (2020–2026)
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Measure your head circumference about one centimetre above your eyebrows and compare it with the size chart on this page. Between sizes? Choose the smaller one — the padding beds in with use.
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Take out the washable lining and hand-wash it in lukewarm water. Clean the shell and visor with a soft cloth and water only — never solvents.
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