Vertical 45mm and 30mm pull back towards rider HANDLEBAR RISERS from ZANA  just add to the COMFORT, Fun and riding stance as shown in pictures here.
 But you gotta experience them yourself 

About them

1. Very good for long-distance touring.
2. Enhanced Pull back which means enhanced comfort.
3. SOLID Aluminium Billets.
4. NO GAPS and NO VIBRATIONS.
5. Machined for accuracy, Matching the exact profile of the handlebar cradle for an absolutely perfect fit.
6. A drastic eye-opening experience compared to a stock setting position.
7. 2 units of longer clutch cables were included as standard.
8. EASY DIY installation.
9. All stainless steel hardware.