[Chris Simpson]

Attended a track day at Silverstone in March with the Radical. Things have definitely tightened up there noise-wise due to a local complainer who has involved the council. The official limit is 105 db static. There was no static test before taking to the track but they threatened to pull in anyone who exceeded 101 db (I think) on drive-by and static test them and if you failed that you were out. Our radical was OK on a full race silencer, which is definitely more than 105 db at 8,000 rpm static (3/4 of max revs), so it was pretty much business as usual unless you were VERY noisy.