Yamaha R15 V4 review: still the chassis to beat

There is a specific moment that explains why the R15 has outsold every other 155cc in this country for years. You are 40 km/h into a right-hand sweeper on a road you have ridden a hundred times, you are already on the gas when you realise you entered it 10 km/h too fast, and the bike simply holds the line. No crash, no wobble, no sense that the front end is negotiating with you. At 155cc, that is still the Yamaha.

We spent a fortnight with the R15 M — half of it logged at a race track, the rest in Bengaluru’s worst — because that split is how most owners actually use this motorcycle, whether they admit it or not.

The engine: a peak, not a curve

The 155cc variable-valve single makes 18.4 bhp at 10,000 rpm and 14.2 Nm at 7,500. Those numbers describe an engine that has to be worked, and Yamaha has not disguised it. Below 5,000 rpm the bike is a modest commuter with a slightly clattery idle; between 6,000 and 8,500 it wakes up and starts pulling with real intent; above 9,000 it revs with a hard, buzzy edge that sounds faster than it is. The VVA switch-over around 7,400 rpm is detectable as a small change in note rather than a shove.

On the track, that top-end behaviour reads as character rather than a limitation. Out of the slow corners at Buddh the engine does exactly what a race engine should — it sits in its power band and stays there — and the six-speed box has short, positive ratios to keep it on the boil. The quickshifter is the star of the electronics package: clutchless upshifts are crisp from about 6,500 rpm upward, which means you can use it through an entire city gearstack rather than only at the redline where a lesser system works. Downshifts still need the clutch, and the assist-and-slipper arrangement keeps the rear from stepping out on a late brake-and-blip.

On the road, the same engine is a compromise. In sixth at 60 km/h it is docile; to overtake a bus you drop into fourth and rev it, which is fine on an open road and absurd in a gap between two vehicles in traffic.

City use: the part of the review that hurts

The R15 is the heaviest thing about it: 142 kg kerb, and that weight sits behind a fairly tall bar, so low-speed handling is more stable than nimble. The clutch is light and the friction zone is wide, which makes queue work easy. What makes it tiring is everything else. The pegs are high enough that they touch a pillion’s heels, and on a loaded mid-corner speed breaker the peg tip scrapes before you expected anything to scrape. The rear monoshock is set for track flatness, so a sharp perpendicular break sends a knock up through the split seat. After 45 minutes of that, your tailbone knows what bike you are riding.

Riding solo at 50 km/h with the fairing and the low bar, you feel committed in the way that makes riders smile and passengers complain. The seat height is 815 mm and the reach to the bar asks something of the wrists; on a long run it is the wrists and the right forearm that tire first, not the back.

Refinement, brakes and the electronics

The chassis is where the money went, and it shows in what the bike does not do. It does not wobble under hard braking from 110 km/h. It does not wash out mid-corner when the rear wheel finds a greasy patch, in part because the two-level traction control intervenes gently and early enough to be educational rather than frightening. It does not transmit fork flex into the bar on kerb strikes. The 282 mm front disc with dual-channel ABS has adequate feel at the lever — modulation is reasonable but not brilliant, and the first third of the travel does less work than you would like.

Vibration is the one genuine refinement complaint. Between 6,500 and 8,000 rpm there is a buzzy residue through the footpeg and the bar that is characteristic of a small single revving hard. It is absent at a 60 km/h cruise, which is why measured cruising comfort is far better than the tacho suggests it should be. Wind noise above 100 km/h becomes the loudest thing in your ears, and the fairing deflects the blast well enough that helmet noise rather than wind dominates.

Efficiency: the number nobody believes

Claimed mileage is 42 kmpl. Our instrumented log over 480 km of mixed riding gave 40.6 kmpl average: 44.3 kmpl on a week of commuting with the revs kept under 6,000, and 32 kmpl for the track day, which included idling in paddock queues and riding the top of the tacho for sport. The realistic band for an R15 owner is therefore 38-45 kmpl. Our own habit was similar: 11.6 litres to a full tank after the reserve light, which is just over 460 km of mixed use between fills.

Instruments, equipment and the small stuff

The negative-LCD console is legible and dense — digital tacho bar, shift-timing indicator, gear position, lap timer on the M — and reads well in direct sun, which is more than can be said for some TFT screens at twice the money. Bluetooth pairing works and incoming calls display cleanly, though the app is slow and the connection prompt at every ignition is an irritation. LED lighting front and rear, and the beam pattern from the headlamp is a genuine improvement over the last generation on an unlit road.

Storage is nil, which is a fair trade on a sports bike, and the under-seat space fits nothing larger than a rain cover. The pillion pad is a token gesture. Buyers who carry a passenger weekly are buying the wrong motorcycle at any price in this segment.

Cost of keeping it

Service intervals at 6,000 km or six months, whichever comes first, and we paid ₹3,400 at a normal oil-and-filter service. Tyres are the real running cost: the 140/70-17 rear is a performance compound and gives up grip on Indian roads somewhere around 12,000 km, and it costs more than a commuter’s rear rubber. Chain and sprocket sets are inexpensive; the clutch plates, being a slipper unit, are not.

Who should buy it

Riders who log meaningful distance alone, who take a corner properly, and who can accept a firm rear suspension as the price of a very good chassis. The R15 M at ₹1.68 lakh is the one to have: the ₹13,000 over the base V4 buys quickshifter, traction control and connectivity, and no other option list in the segment is that concentrated with useful hardware.

Who should not: anyone carrying a pillion more than occasionally, anyone whose commute is 90 minutes of cratered road, and anyone who expects the 155cc badge to feel like 250cc in the low range. For those buyers a 200cc naked with a softer rear — the Pulsar NS200, at ₹1.84 lakh — will do the same job with less effort, and give up nothing on a track day except lap time.