Where can I buy Bicycle Replacement parts?

Question

I have bought these two bikes two years ago:

Next:

Model #: 8575 -18E

Date: 2005.02.05

and

RoadMaster

Model #: R3516WMCT

Date: FSD03JE

I need gear shifters and if i knew the parts and the types...

I know that my Next bike has a gripshifter.

I think my RoadMaster has a twist shifter

I need two new shifters for these handles and new grips

BTW... what i mean by twistshifter = (_)-- You turn it.

Answer 1

go to a bike shop!!!!!!

Answer 2

You can try here:

http://niagaracycle.com/