21:5021:50, 27 November 2014diffhist+1
Aluminium
"such as" means you're listing possibilities. Both of these options are possibilities, not one of the two, even if they don't occur together.
11:1011:10, 25 July 2011diffhist−3
Bicycle helmet
"adequate" is probably a bit too variable - someone riding to the shops or riding in the rain doesn't need any.
11:0811:08, 25 July 2011diffhist+10
Bicycle helmet
Aerodynamic helmets are an exception, eg teardrop helmets. Full-face helmets for motorcross are also very different in design and aim.
14:5514:55, 5 April 2011diffhist0
Campagnolo
This is a Euro-centric article, and UK English is internationally more universal anyway, so UK spelling is more in keeping with WP guidelines.
03:2203:22, 30 March 2011diffhist−9
Brake fluid
Hydrolic brakes are common in mid to upper range mountain bikes and are sporadically available in commuter bikes such as hybrids and cruisers. Their inclusion is not a matter of being "advanced", time trial, road and track bikes do not require them