The Yamaha XSR 155 is a motorcycle from Yamaha. It is currently on sale. With a 155 cc engine it sits in the 150–250 cc class.
Power comes from a 155 cc single-cylinder liquid-cooled engine that makes 18.1 bhp at 10,000 rpm and 14.2 Nm of torque at 7,500 rpm. Divide power by kerb weight and it has about 134 PS per tonne; by that measure, it is lively, with easy overtakes and relaxed highway speeds. The claimed top speed is 125 km/h. It has electric start.
It has a 6-speed manual gearbox with a 1-down, 5-up shift pattern, and a chain carries drive to the rear wheel. Its slipper clutch lightens the lever and stops the rear wheel hopping when you downshift hard.
It is built around a deltabox frame. Suspension is by USD forks at the front and swingarm (link suspension) at the rear. Braking is by a 282 mm disc at the front and a 220 mm disc at the rear, with dual-channel ABS. ABS on both wheels keeps either tyre from locking under hard braking. It rides on 17-inch alloy wheels with tubeless tyres — 100/80 - 17 at the front and 140/70R - 17 at the rear.
The seat is 810 mm off the ground, which is about average and suits most riders. It weighs 137 kg ready to ride. Ground clearance is 170 mm — enough for most speed breakers. It is 2,005 mm long, with 1,325 mm between the axles. It carries 10 L of fuel.
Equipment includes LCD Display with Brightness Control, an LED headlamp, call and SMS alerts, gear position indicator, real-time mileage indicator, service due indicator, engine temperature indicator, low fuel indicator and low oil indicator. Safety equipment includes engine kill switch, side-stand engine cut-off, side-stand warning, hazard light switch, traction control and malfunction indicator.
The manufacturer's warranty is 30,000 km or 2 years. It comes with 4 free services, the first due at 1000 km or 30 days. For the Yamaha XSR 155, Mechiee offers a fixed ₹1,399 doorstep service.
Recommended tyre pressures are 29 psi front and 33 psi rear, solo or with a pillion. The published service intervals are 1st service at 1000 km or 30 days, 2nd service at 5000 km or 150 days, 3rd service at 9000 km or 270 days and 4th service at 13000 km or 390 days. Its chain drive needs regular cleaning, lubrication and slack adjustment.