Re: Need some modification help
You need a new stem, post pictures of your bike. You either need a quil stem or a threadless 1 1/8 stem.
You should also look into riser handlebars on BMX style handlebars. Keep in mind handlebars have different diameters, so check what you have.
Most mountain bike bars are 31.8 or 25.4mm, must BMX bar a areas 25.4mm.