K-Tech DDS Closed Cartridge Kit – Honda CBR 1000 RR SP (2014-2019) 155-014-130-020

Built for riders who demand precise, fade-free damping control at every corner entry, the K-Tech DDS Closed Cartridge Kit transforms the front-end behaviour of the Honda CBR 1000 RR SP across the full 2014 to 2019 model range. K-Tech's patented Direct Damping System eliminates cavitation entirely, delivering consistent, high-response damping whether you are threading your way through a fast chicane or hauling the bike down from top speed on a long straight.

Key Features

• Direct Damping System (DDS) technology provides independent, highly responsive compression and rebound control with zero cavitation under sustained hard use.
• 20 mm piston and 31 mm control piston combination maximises oil flow, reducing response lag and improving chassis feel at the limit.
• 8 mm piston rod adds structural rigidity to the cartridge, maintaining consistent geometry under heavy braking loads.
• Supplied with factory-suggested click settings — 16 compression, 18 rebound, 10 mm preload — giving a proven baseline to build from on arrival at the circuit.
• Designed specifically for the SP model variants, ensuring correct fitment with the OEM Showa Big Piston Fork equipped on these machines.
• Part of K-Tech's closed cartridge range, engineered to satisfy both aggressive track day and professional race circuit demands.

Performance & Engineering

The DDS closed cartridge design keeps the oil circuit fully sealed, preventing air ingestion that typically degrades damping under repeated high-speed compression cycles. With an inner diameter of 20 mm and an outer diameter of 32 mm across a total length of 690 mm, the cartridge is dimensionally matched to the CBR 1000 RR SP fork leg without the need for additional machining or adaptor hardware. The 36-260 series spring pairing ensures that preload, sag and spring rate interact correctly from the outset, giving a suspension tuner a clean, predictable platform.

Track & Road Use

The K-Tech DDS cartridge kit is at home in a professional race environment yet remains entirely usable on a demanding road. The suggested click positions are conservative enough to provide a composed, confidence-inspiring ride on the road while leaving substantial adjustment range for riders chasing lap times. Rebound and compression circuits are tuned independently, so dialling in chassis balance for a specific circuit layout requires nothing more than trackside click adjustments rather than a strip-down.

Fitment & Compatibility

This kit is confirmed to fit the following model:

• Honda CBR 1000 RR SP — model years 2014, 2015, 2016, 2017, 2018 and 2019

Note: designed for the SP variant specifically. Confirm fork inner diameter and overall leg length before fitting to non-SP CBR 1000 RR models of the same period.

Specifications