Honda SP 125 mileage and running cost

SP 125's claimed mileage is 63 kmpl, and unusually, owners and our own riding land right on it: expect 59–66 kmpl in everyday use. Few bikes get this close to their brochure figure.

Among the 21 commuter bikes we have reviewed it ranks 14th for mileage, 2 kmpl below the group average of 65 kmpl.

At Delhi's petrol price of ₹94.80 a litre and a real-world 62.5 kmpl, the SP 125 costs about ₹1.52 per km in fuel. Ride 30 km a day and that is roughly ₹1,183 a month, or ₹14,197 a year, before servicing.

The 11-litre tank gives a realistic range of about 688 km, so a 30 km commute means a fill-up every 3 weeks.

Spread over five years and 46,800 km, the SP 125 works out to about ₹4.2 per km all-in, of which 36% is fuel and 53% is the purchase price itself. Resale value is not counted; expect roughly 50–60% of ex-showroom after five years for a well-kept example.

The quickest wins for the SP 125: keep tyres at the recommended pressure (under-inflation by 5 psi can cost 2–3 kmpl), shift up early and avoid idling at long signals, which the idle start-stop system handles for you.

Short trips hurt most. A cold engine on a 2 km run can return half its normal mileage; if that is your use, expect the low end of the real-world band.

Service on time. A clogged air filter or old spark plug shows up in mileage before it shows up anywhere else.