Once it might have conjured up images like that of George Orwell's old maids "biking to Holy Communion through the mists of the autumn mornings".
Now, at least in built-up areas, one stereotype, rightly or wrongly, is of well-paid men in expensive leisuirewear with a sense of entitlement and a refusal to conform to the same rules as everyone else.
There is little that divides UK public opinion more sharply than cyclists.