WEARSIDE motorcyclists fear the bike industry will be left in ruins if EU plans to ban modifications go ahead.
The proposals would stop bike owners tuning their own bikes and could also see electronics start to control their speed.
In protest, thousands of motorcyclists took to the motorways, including the A1(M) near Washington, for a half-an-hour show of solidarity against the plans.
Demonstrators made their feelings known with go-slow rides taking place simultaneously from about 100 starting points across the country.
Processions of hundreds of motorcyclists rode at 45mph for 10 miles in the EU Hands Off Biking demonstrations, organised by the Motorcycle Action Group.
Steven Bradford, from the Ultimate Toyz motorbike shop, in Sunderland, was among those taking part in the protest last month.
“It is really going to kill the industry,” he said.
“When something goes wrong or you want to customise your bike, you won’t be able to do anything.
“All the people who manufacture the parts that people buy are going to left out of work.
“All you will be able to do is paint your bike.”