Amongst the three, the approach taken by Suzuki Gixxer SF and Yamaha Fazer FI is more or less the same. Both of them are based on their 150cc streetfighter siblings and the front is all where the difference lies. While Fazer FI follows the lines of its litre-class namesake with its half-fairing, the Gixxer SF is fully faired motorcycle. The Avenger on the other hand seems to draw inspiration from the Harley-Davidson Street 750. The blacked-out theme for the engine, exhaust, frame and rubber bellows for the front suspension, all give the Avenger 150 Street the undertones sports cruiser.
The Avenger 150 Street is offered with the 150cc twin-spark DTS-i engine, borrowed from the Pulsar 150 DTS-i. Though the power has been reduced to 14.3bhp, the torque number has been raised to 12.5Nm, with the low-end and mid-range getting 10 per cent more grunt than the Pulsar 150 DTS-i. This should suit the motorcycle's character, and usability in cities.
Even when it comes to the powertrain, the Gixxer SF and Fazer FI retain their siblings' engine and gearbox. The Gixxer SF gets a carburetted 155cc single-cylinder engine, which delivers 14bhp and 14Nm of torque through a five-speed gearbox. The engine has been tuned with focus on performance, and the Gixxer SF delivers abundantly in this aspect. The aerodynamic fairing also helps its cause in achieving a higher top speed than the competitors, and even the naked Gixxer. In terms of technology, the Fazer FI is a step ahead, as its 149cc single-cylinder mill gets a fuel-injection system. Delivering through a five-speed gearbox, this engine has been tuned for refinement and good fuel efficiency, while performance takes a back seat.