Triumph ECU Tuning: New FLEX Protocols for Keihin EU4 and EU5 Bikes
Date Added: 24/07/2026
Triumph ECU tuning has taken a step forward with a new set of FLEX protocols that reach two more Keihin control units through the bike’s own diagnostic port. The latest FLEX release adds OBD support for the Keihin KTKS_v1, which runs on a Renesas RH850 processor, and the KHR4, which…