Yamaha R15 V4 vs KTM RC 125: Specifications Comparison

Akash Vashisth
Akash Vashisth
Est. Reading Time 14 mins

Sports Bikes are the machine that are bought by the enthusiasts who look for fun while riding day in or day out. There are not many options in India which are affordable and fun to ride. Under Rs 2 lakh, you only get two sports bikes – Yamaha R15 V4 and the KTM RC 125. Both these bikes are priced within a price range of Ra 1.67 lakh to Rs 1.80 lakh ex-showroom New Delhi.

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Due to this close price range and single concept of track riding, the all-new Yamaha R15 V4 and the KTM RC 125 are brought here for a complete specification comparison. We will discuss the engine power and performance numbers, the chassis on which the bikes are built, cycle parts, safety features and the set of features available for rider convenience. The first thing that we will start this specs comparison is with the pricing and the available variants of Yamaha R15 V4 and the KTM RC 125.

Yamaha R15 V4 vs KTM RC 125: Variants and Price

Starting with the KTM RC 125, the sports bike from the house of Austrian motorcycle manufacturer comes at a staggering price tag of Rs 1,80,538 ex-showroom New Delhi. This makes it the most expensive 125cc bike in the whole Indian market. There was been multiple price hikes in the last two years which brought the price up by almost Rs 40,000. It also includes the SB6 upgradation from the company to meet the stricter emission norms.

The newly launched Yamaha R15 V4 has been launched in India from a price of Rs 1,67,800 ex-showroom in India for the base Metallic Red colour option. This is a modest Rs 11,000 hike over the previous generation Yamaha R15 V3 which carried a price tag of Rs 1.57 lakh ex-showroom New Delhi. The Japanese company has added a lot of value for the price at which the bike is available in the country.

Yamaha R15 V4KTM RC 125
Ex-Showroom Price₹ 1,67,800₹ 1,80,538

Further, Yamaha R15 Version-4 gets total five variants to choose from. Metallic Red is most the most affordable R15 with Rs 1,67,800 and gets the basic upgrades which are available on the new V4. Above it, there is a Dark Knight version which gets a complete blacked-out treatment of the bike for additional one thousand bucks at Rs 1,68,800. The Racing Blue version will set you back by another 4,000 at Rs 1,72,800 and this particular version will feature uni-directional quick-shifter.

The colour scheme from the international Yamaha R7 is now available on the R15 in the R15M version which is priced at Rs 1,77,800 and the Monster Energy MotoGP edition will demand another two thousand rupees at Rs 1,79,800. All these prices mentioned here are ex-showroom New Delhi.

Yamaha R15 V4
Metallic Red₹ 1,67,800
Dark Knight₹ 1,68,800
Racing Blue₹ 1,72,800
M₹ 1,77,800
Monster Energy Edition₹ 1,79,800

Yamaha R15 V4 vs KTM RC 125: Engine and Performance

Moving on to the powertrain department, the bikes we are talking here belongs to different segments. One is a 125cc motorcycle while other one packs a powerful 150cc engine despite the fact that both the bikes are targeted at young riders with a spirit for the track racing machine and sports riding.

Yamaha R15 V4 comes with the same liquid-cooled, 155cc, 4-valve DOHC, fuel-injected, single-cylinder engine with variable valve actuation technology for better performance in the higher engine speed. The VVA tech kicks it at 7400 rpm and alters the valve timing according to the requirements of the rider. This powerplant belts out 18.1 bhp of power at 10,000 rpm and 14.2 Nm of torque at 7500 rpm. If you notice, the power has gone down while the torque is now more than previous generation bike.

A slipper clutch is present between the engine and the 6-speed gearbox with well-spaced gearing that provides acceleration which is much greater than any 150-160cc bike at present in the Indian market. The gearbox has been tuned to offer class-leading performance on the track circuits as it is where the R15 is made to perform. One-way quick-shifter is available as an accessory and as standard equipment on certain variants of the sports bike. This will aid the rider to seamlessly up-shift during aggressive acceleration.

Yamaha R15 V4KTM RC 125
Engine155 cc124.71 cc
CoolingLiquid-CooledLiquid-Cooled
Valve Train4 valves4 valves
Max Power18.1 bhp @ 10,000 rpm14.3 bhp @ 9,250 rpm
Max Torque14.2 Nm @ 7,500 rpm12 Nm @ 8,000 rpm
Gearbox6-Speed6-Speed
Power to Weight Ratio127.4 bhp/ton92.85 bhp/ton

KTM RC 125 features a small but potent 125cc, liquid-cooled, single-cylinder, four-stroke, fuel-injected, 4-valve DOHC engine. This mill delivers 14.3 bhp of max power at 9250 rpm and 12 Nm torque coming up at 8000 rpm. It gets a 6-speed gearbox attached to the engine connected via a wet multi-plate clutch.

In terms of performance, the Yamaha R15 V4 will definitely be a class ahead of the KTM RC 125. If you look at the table below, you can see that Yamaha R15 V4 hits 60 kmph in just 4.3 seconds while 100 kmph come up in just 12 seconds or so. Due to taller gearing and aerodynamic shape of the R15, the top speed is rated to be around 140 kmph in real-world riding conditions.

RC 125 from KTM manages 0 to 60 kmph acceleration stint in 6.2 seconds or so while over 20 seconds are required by the machine to touch 100 kmph mark. The small 125cc engine loses its steam post 100 kmph mark and the rider has to push hard to make the 110 kmph speed written on the speedometer console.

Yamaha R15 V4KTM RC 125
0-60 kmph4.3 sec6.2 sec
0-100 kmph12 sec20 sec
Top Speed140 kmph110 kmph
Braking 60-0 kmph16.88m20.05m
Braking 80-0 kmph34.15m36.43m
Braking 100-0 kmph51.67mN/A

If a bike is moved forward, it is also required to be stopped. And thus, good braking setup is equipped on the R15 V4. The blue sports bike brought to a halt from 100 kmph to zero by covering 51.67 metres, a braking performance of 80 kmph to standstill is done in 34.15 metres while a slow speed braking from 60 kmph to zero is done is just 16.88 metres. Yamaha R15 V4 comes with one of the most powerful braking setups in the 150cc segment and the braking distance is the testimony of the same.

KTM RC 125 covers a distance of 36.43 metres to a complete halt when brakes are pressed at 80 kmph and 20.05 metres while bringing the bike from 60 kmph to rest. The RC 125 do not get the best braking setup for the performance it is capable of.

All-in-all, the R15 V4 is a better performing bike in both acceleration and braking department because it comes with a powerful 150cc engine and better braking hardware.

Yamaha R15 V4KTM RC 125
Mileage43 kmpl40 kmpl
Fuel Tank11 Ltr9.5 Ltr
Range470 km380 km

Coming to the fuel efficiency, Yamaha R15 V4 returns better mileage of around 43 kmpl in the mixed riding conditions while the RC 125 manages to deliver around 40 kmpl overall mileage. This is due to the smaller engine that takes more load to deliver satisfying performance to the riders in the city limits or out on the highways.

Yamaha has plonked a 11-litre fuel tank on the R15 V4 while the RC 125 features just 9.5-litre tank capacity with both the bikes leading to a riding range of 470 km and 380 km respectively in a single tankful. You would require more top-ups on the KTM RC when compared to the R15 V4.

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Yamaha R15 V4 vs KTM RC 125: Chassis, Suspension and Tyres

Both Yamaha R15 V4 and the KTM RC 125 are sports bike that are designed and developed to be used on the racing circuits. Hence, the first thing that is needed on these bikes is a rigid chassis that can handle the forces of track racing, quick lane changing, nimble handling, holding the line while attacking a corner and steady ride.

R15 V4 is built around a deltabox frame which is basically a perimeter-type frame which hold the engine and also has a rear subframe. Yamaha’s deltabox is the most suited for superb track racing scenarios as it is highly rigid and stable from all points. It offers impeccable ride and handling on and off the race tracks.

It is the very first time when Yamaha fixed golden USD forks on the R15 and the rear suspension continues to be the same monoshock unit. The USD forks are known for offering better track racing performance with better suspension feel and the feedback from the tyre contact is on a level above when compared to the regular telescopic forks. All-new R15 V4 will be a far better performer on the race track then its previous generation version which was the best track bike in its class.

Yamaha R15 4V rides on 100/80 and 140/70 section tubeless tyres wrapped over 17-inch alloy wheels at the front and the rear. These tyres offer great deal of grip on all kinds of surfaces be it city, hilly areas or the race track. However, if you are taking the bike for a rear track-day event, you might want to upgrade the tyres for better grip around the corners. Better suspension setup has enhanced road contact and the stability on the circuits specially at higher speeds.

The sports bike from Japanese manufacturer is stopped by 282 mm front disc brake and 220 mm rear disc brake unit. Both the rotors are gripped by Bybre sourced callipers with front being a 2-piston unit and rear being a single-piston unit. This braking hardware are among the best in the class as they offer fantastic braking performance. A dual channel ABS takes care of the rider’s safety under extreme braking requirements.

Yamaha R15 V4KTM RC 125
Front SuspensionUSD ForksUSD Forks
Rear SuspensionMono-ShockMono-Shock
Front Tyre100/80-17M/C 52P110/70 R17
Rear Tyre140/70-17M/C 66H150/60 R17
Front BrakeDisc - 282 mmDisc - 300mm
Rear BrakeDisc - 220 mmDisc - 230mm
ABSDual-ChannelSingle-Channel
Weight142 kg154 kg
Seat Height815 mm820 mm
Ground Clearance170 mm178 mm
Wheelbase1325 mm1341 mm

KTM RC 125 gets a steel trellis frame which is light and sturdy and is capable of handling all type of ride and surfaces. There is around agility to let the rider change lances quickly and dive into the corners without loss of confidence. The RC 125 was made available to those young riders who wanted a sports bike with low engine capacity making it easier to handle by beginner riders not experienced enough for powerful bikes.

Like the Yamaha, KTM has plonked everything nice in terms of suspension, tyres and the braking hardware. The tyres on the RC 125 are wider than those found on the R15 at 110/70 and 150/60 section at the front and the rear. These tyres are tubeless units and are positioned on the 17-inch allow wheels at both ends.

There is a pair of USD forks at the front and a monoshock unit at the rear offering stiff ride quality in a bid to offer surefooted ride and handling characteristics. A bike with stiff suspension is best for tackling the race track and clock fastest laps but they are not so great to ride on the broken patches of roads as all the chocks from the roads with hurt the rider’s hands and the back. Once has to ride the RC 125 at a slower speed when handling the bad section of roads in the city.

The braking department on the RC 125 is taken care of a large 300 mm front disc and 230 mm rear disc gripped by Bybre callipers. This setup offers decent braking but not sharp by keeping in mind the requirements of the young riders.

It is the first time Yamaha has increased the saddle height of the R15 to 815 mm making it bit difficult for the short riders to manage the machine in the dense traffic conditions. Previously, the R15 V3 has 800 mm seat height which is kind-of ideal for most riders. However, in comparison, the KTM RC 125 will require you to sit even higher at 820 mm and you will have to be at least 5’6” tall to manage the bike in the city streets.

The ground clearance on the RC 125 is more at 178 mm which is just 8 mm more than R15’s 170 mm ground clearance. This is more than sufficient to take the bike over the tall, pointy and uneven speed-breakers. Speaking about the wheelbase, the R15 gets a shorter one at 1325 mm while the RC features a longer wheelbase of 1341 mm. This makes R15 a bike on which taking U-turns and manoeuvring in the city easier and manageable than the RC.

Yamaha R15 V4 vs KTM RC 125: Features

After working our way through all the specifications of both the blue and the orange sports bike, we come across the features section of the bikes.

KTM RC 125 gets twin projector headlight setup with halogen bulbs while the rest of the lighting system including tail-light and the turn indicators are all LED units. On the dashboard, the bike gets a small LCD unit which delivers a long list of information which is hard to digest for a beginner rider. You get instantaneous and average fuel consumption, distance to empty, fuel gauge, engine coolant temperature and many other readouts.

Being a sports bikes, the RC 125 is a fully faired bike with clip-on handlebars which are positioned low. The rider has to lean forward for riding the machine that give the rider total control of the bike. The front visor is tall enough to form an aerodynamic shaped that helps in cutting through the air at higher speeds.

The rider safety is provided only by a single channel ABS and wider tyres take care of the rest. It is not a comfortable bike to ride on the highways as the main purpose if it to deliver striking performance no the race tracks. Nothing more interesting is available on the RC 125 such as Bluetooth connectivity feature in the instrument cluster or quick-shifter for speedy lap times.

Moving on to the Yamaha R15 V4, the bike from the Japanese manufacturer is now a fully loaded sports performance machine. The all-new R15 V4 now comes with traction control system as well which makes it even safer when it comes to instant acceleration leading to the rear wheel spin that could lead to loss of balance and a crash. This is a supplementary system over the dual channel ABS unit which was also available in the previous generation model.

It was the V3 which got the fully digital instrument cluster for the first time and on the V4, you get a larger meter console with Bluetooth connectivity feature. There is a mobile app through which you can connect to the bike’s console via Bluetooth and get access to a plethora of bike related data and information which are not available on the bike’s panel. A whole new horizon of possibilities is open with the new Bluetooth connectivity technology.

The meter console itself is a new unit which gets indications of Bluetooth connectivity, mobile phone’s battery level indicator, connection status, mobile notifications status and much more. You can opt for a USB charging port as an accessory to charge your mobile phone on the go.

For making it a proper and serious track machine, the company has offered uni-directional quick-shifter on the R15 V4 in three variants – Racing Blue, R15M and the Monster Energy Edition. This will allow the rider to upshift without using the clutch which will reduce the lap timings by crucial milliseconds. However, you have to use the clutch to downshift before a corner.

Both the bikes get split seats with spacious seat for the rider but little space for the pillion. Being a sports bike, the comfort of the pillion is not the priority here. Overall, the Yamaha R15 V4 trumps in the features department as well.

In Conclusion

Over the decade of its first launch, the Yamaha R15 has a dedicated queue of customers who are young and energetic and pose serious consideration towards a sports bike that can let them scrap their knees around the corners. R15 ruled the space for over a decade and then came the RC 125 from the house of KTM.

KTM had RC 200 which was more powerful and provided better performance than the R15 but the price difference kept it away from a majority of riders in India. It was then RC 125 which attracted the young and beginner riders who wanted a small capacity bike at a respectable price tag. It is the brand KTM which bags the most buyers of the RC 125 and for the bike itself because the RC is a full-sized motorcycle as its platform is shared with that of the RC 200 and even the RC 390.

At the end it comes to the personal preference when choosing a bike. If you want a KTM sports bike but cannot go for the RC 200 due to high pricing and higher running costs, then RC 125 is the bike for you. However, if you are looking for some serious track times with greater power and performance, latest technology and features, track-centric chassis, tyres, meter console and more, then Yamaha R15 V4 is the best machine your money can bring you under Rs 2 lakh in India today.

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We hope that after reading this article, you can choose the right bike from the two contenders according to your requirements and usage pattern. Which one will you choose and why? Do tell us in the comments section below.

Always wear a helmet while riding a two wheeler and follow all the traffic rules. This way we can make our roads safer for all. Stay tuned for more from the motorcycling world at Bikes24.

Yamaha R15 V4 vs KTM RC 125: Specifications at a Glance

ModelYamaha R15 V4KTM RC 125
Engine155 cc124.71 cc
CoolingLiquid-CooledLiquid-Cooled
Power18.1 bhp @ 10,000 rpm14.3 bhp @ 9,250 rpm
Torque14.2 Nm @ 7,500 rpm12 Nm @ 8,000 rpm
Gearbox6-Speed6-Speed
Front SuspensionUSD ForksUSD Forks
Rear SuspensionMono-ShockMono-Shock
Front Tyre100/80-17M/C 52P110/70 R17
Rear Tyre140/70-17M/C 66H150/60 R17
Front BrakeDisc - 282 mmDisc - 300mm
Rear BrakeDisc - 220 mmDisc - 230mm
ABSDual-ChannelSingle-Channel
Weight142 kg154 kg
Fuel Tank11 Ltr9.5 Ltr
Mileage40 kmpl40 kmpl
Top Speed140 kmph110 kmph
Ex-Showroom Price₹ 1,67,800₹ 1,80,538

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Akash Vashisth

Its Akash, Simple and Sober. Love to write stories, especially fiction. Here, you get to look in my passion for Automobiles.

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