Q. I want a well performer bike which delivers a good mileage and also comfortable for the pillion rider. Which bike should I go for? Which one will be better between Apache 160 4v and Gixxer 155 SF?

Performance is inversely proposition to Mileage so Performance and Pillion comfort- Apache 160mileage and Rider comfort- Suzuki GXR SF155

Both are good vehicles, But you are saying it should be also comfortable for pillion rider, you can go with Gixxer sf.

Gixxer sf bhai because his riding potion is better then 160 so sf is good option