New Guy

Im very new to the lowrider bike scene. I bought a 26" frame & some high apes. was wonderin which sissy bar 2 get, I dont want the tall one, I want the short 1 & I want it 2 fasten on the rear tire. I was told the 1's for the 20" frame will not hold up while Im riding it. what is the size & type of sissy bar Im lookin for? I c the 1's online but dont know which is which. Also, any1 know where to get good wheels & tires cheap?  

so, your bike has a banana seat?
You want the bottom of the sissy bar to secure to the rear axle?
Or you want a spare wheel to attach to the sissy bar?  

I dont want a spare tire. I just want the sissy bar 2 secure 2 the rear axle & b just enough for a chick 2 hold on 2 if shes ridin on the back. Whats the type of sissy bar that actually fastens on & works, not just an ornament. Also, what size am I lookin for?