As I understand it from the UK forum they put a bolted on "stop" or limiter on the throttle body cam that shortens the throttle throw to comply with the max crank power output allowed in certain countries (France 100 & Spain 95 I believe). I don't know if there is any related tuning but if so that is easy enough to reverse if you remove the throttle limiter.
: found in the UK accessory catalog, part numbers A9618044, Restrictor Kit 34PS and A9608040, restrictor kit 98PS
Here is a link to the Triumph fitting instructions : http://www.triumphinstructions.com/P...9618044-EN.pdf
No tuning changes, just the throttle limiter