Would depend entirely on what you want to modify it for, which you haven't told us.
No, you can not.
Er, it's a valve in a bike pump. Usually a membrane type.
it is a bike operated by air
You could get a bike pump at Wal-Mart or best buy or try this site www.halfords.com Bikes Bike Accessories & Bike Helmets , or this site on how to choose the best bike pump www.rei.com/expertadvice/articles/bicycle+pump.html
Modifying your bike is very simple, for speed you may add a converision kit to you bike which can go up to 20mph.Battery kits are included with the conversion kits. Go green!
A Honda CRF100F is very rare to be sold as a racing bike, but people of ownership can modify them to racing style.
no
hello
yes
yes, First, get crayons, Second, get a dirt bike, Third, Go Crazy
A moto gp bike can be modified at any time however once an engine has been sealed that engine must not be modified
It is were you take an air pump (bike pump) and put it up your azz and pump until you become bloated