BMX bike parts can be purchased from bicycle dealers and repair shops. JR Bicycles has a large assortment of BMX bike parts and an online shop as well.
Go to bike shop or wolyworld and buy a link remover.
You can purchase a BMX bike helmet from any retail bike shop, online or a store like Walmart . You can also look on ebay or craigslist for a BMX helmet
the easiest way is to go to your local bike shop
The shop !!
If one were to purchase a freestyle BMX bike, one could go to a specialist bike shop. Alternatively, various specialist companies, such as Vital BMX offer a huge range of products.
inox or chain lube from a bike shop
You can either check youtube or most bmx bike websites have videos of tricks, check eastern.com
go to a bike shop and start to build it there start with the frame its the most expensive
The bmx thruster rampage bike is a exellent bike
Cheap BMX bikes can be found on eBay, Kijiji, Craigslist, Bike Warehouse, Halfords, Walmart, Bicycles Direct, Amazon, Vital BMX, BMX Shop and DK Bikes.