Triumph Street Triple 765S/R/RS, Moto 2 & Daytona Moto2 2017-23 Race Velocity StacksTriumph Street Triple 765S R RS, Moto 2 & Daytona Moto2 2017 23 Race Velocity Stacks These dyno developed velocity stacks will add extra performance where its needed on the Triumph Street Triple 765 all models. Machined from solid billet aluminium. No changes to ECU mapping required, but always better with a remap. Works on standard or tuned engines. Description: Racing suction kit developed and tested at the test bench to increase engine performance