Suzuki Gixxer SF is the modified version of Suzuki Gixxer. Well the technical specifications of both the bike are same with 155cc engine. The only drawback is the ground clearance, it always bumps on the speed breakers. The pick up is superb.
If you want a sporty look bike r15 and all but your budget is limited then go for this bike. Its a super Awesome bike.
If you took the test ride and loved it but you still can't fix it in your budget then you can opt for the normal version i.e. Suzuki Gixxer as I mentioned that technical specifications are same.
Thank You.!