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Side-by-Side Bike Comparison ¡ September 2026

GPX Demon GR165R vs Yamaha R15 V4

Technical comparison of performance curves, real-world dyno numbers, verified ratings, and full dynamic spec sheets.

💎 Best Value
GPX Demon GR165R
GPX

GPX Demon GR165R

GPX Demon GR165R
Engine 165 cc
Power 17.8 bhp
Mileage 35 kmpl
Brakes / ABS No
Price in BD ā§ŗ324,000
Details
⚡ Power Leader
Yamaha R15 V4
Yamaha

Yamaha R15 V4

R15 V4 Standard
Engine 155 cc
Power 18.1 bhp
Mileage 45 kmpl
Brakes / ABS Dual-Channel
Price in BD ā§ŗ600,000
Details
01 / Bottom-Line Takeaway

Quick Verdict

VALUE CHAMPION #1
GPX Demon GR165R (GPX Demon GR165R)

The Value Argument

Maximizes features per taka spent at ā§ŗ324,000. Ideal balance of equipment and accessible dealer pricing without sacrificing daily road manners.

Best for: Budget-conscious riders looking for modern styling.
POWER & HARDWARE #2
Yamaha R15 V4 (R15 V4 Standard)

The Performance Benchmark

Delivers class-leading punch with 18.1 bhp and sharp throttle response. Backed by Dual-Channel for riders demanding confidence in high-speed and emergency scenarios.

Best for: Highway tours, enthusiast riding, emergency brake safety.
02 / Engine Output Benchmarks

The Dyno Room

Peak Bhp & Torque Scaled
Peak Power Output (Bhp) Top: 18.1 Bhp
GPX Demon GR165R (GPX Demon GR165R) 17.8 bhp @ 9000 rpm
Yamaha R15 V4 (R15 V4 Standard) 18.1 bhp @ 10000 rpm
Peak Torque Delivery (Nm) Top: 16 Nm
GPX Demon GR165R (GPX Demon GR165R) 16 Nm @ 6500 rpm
Yamaha R15 V4 (R15 V4 Standard) 14.2 Nm @ 7500 rpm

Claimed Top Speeds

140 km/h
GPX Demon GR165R (GPX Demon GR165R)
140 km/h
Yamaha R15 V4 (R15 V4 Standard)
Dyno takeaway: Engine cooling hardware (liquid vs oil vs air) and gear ratios determine how long peak power can be sustained on open highway runs.
03 / Multi-Vector Scorecard

AI Analysis Engine

Rule-Based Specs Synthesizer

AI Engine Recommendation

Comparing power-to-weight, braking safety gear, real mileage data, and dealer price points across this matchup. Use the 5-point radar breakdown below to balance your budget against your daily riding style.

GPX

GPX Demon GR165R (GPX Demon GR165R)

8.3 / 10
Performance 9.4
Comfort 7.3
Tech & Features 7.4
Fuel Economy 8.7
Value for Money 8.8
Yamaha

Yamaha R15 V4 (R15 V4 Standard)

8.3 / 10
Performance 9.5
Comfort 7.8
Tech & Features 7.4
Fuel Economy 9.5
Value for Money 7.3
05 / Verified Owner Sentiment

Rider Community Ratings

Verified BD Rider Reviews
Yamaha

Yamaha R15 V4

0 verified owner feedback
★ 4.5
Overall Rating
06 / Full Technical Comparison

Specification Sheet

Bike Information 11
Bike Name GPX Demon GR165R Yamaha Metallic Black
Brand GPX Yamaha
CC 160 155
Regular Price 324000 610,000
Bike Type Sports Sports
Distributor/Seller Speedoz Limited ACI MOTORS LIMITED
Model Year 2021 2022
Brand Origin Thailand Japan
Made In China India
Assemble In Bangladesh India
Launched Date 2021-02-23 2022-05-22
Engine 15
Engine Type Liquid-Cooled, 4-Stroke, 2-Valves, SOHC, Single Cylinder Single Cylinder, Liquid Cooled, VVA
Displacement 164.6 155.1 cc
Maximum Power 17.8 Bhp @ 9000 RPM 18.1 Bhp @ 10000 RPM
Maximum Torque 16 NM @ 6500 RPM 14.2 NM @ 7500 RPM
Bore 59.7 mm 58.0 mm
Stroke 58.8 mm 58.7 mm
Compression Ratio 11:1 11.6 : 1
Valves 2 4
Fuel Supply GPX Fuel Injection Fuel Injection
No of Cylinders 1 1
Engine Cooling Liquid Cooled Liquid Cooled
Starting Method Electric Electric
Engine Oil Grade 10W40 10W40
Engine Oil Capacity 1 L (Without Filter) 1 L (Without Filter)
Best Lube For Mobil Racing 4T 10W40 —
Transmission 4
Transmission Type Manual Manual
No of Gears 6 6
Clutch Type Wet-multiplate Wet Type Multi-Plate Assist & Slipper Clutch
Drive Type Chain Drive Chain Drive
Mileage & Top Speed 2
Mileage 35 Kmpl (Approx) 40 Kmpl (Approx)
Top Speed 140 Kmph (Approx) 140 Kmph (Approx)
Chassis & Suspension 3
Chassis Type Trellis frame Deltabox
Front Suspension Upside Down Forks Telescopic USD
Rear Suspension YSS 7-Step Adjustable Monoshock Monoshock
Brakes 6
Front Brake Type Single Disc Single Disc
Rear Brake Type Disc Brake Disc Brake
Front Brake Diameter 276 mm 282 mm
Rear Brake Diameter 220 mm 220 mm
Anti-Lock Braking System (ABS) No Dual-Channel
Braking System Normal Braking System Dual Channel ABS
Wheels & Tyres 4
Front Tyre Size 100/80-17 100/80-17 M/C 52P
Rear Tyre Size 140/70-17 140/70-R17 M/C 66H (Radial)
Tyre Type Tubeless Tubeless
Wheel Type Alloy Alloy
Dimensions 8
Overall Length 2020 mm 1,990 mm
Overall Width 747 mm 725 mm
Height 1145 mm 1,135 mm
Ground Clearance 150 mm 170 mm
Weight 155 kg 142 kg
Fuel Tank Capacity 11 Liters 11 L
Wheelbase 1350 mm 1,325 mm
Seat Height 815 mm 815 mm
Electricals 5
Battery Type MF MF
Battery Voltage 12V 6Ah 12V, 4.0Ah
Head Light LED LED
Tail Light LED LED
Indicators LED Halogen
Features 8
Speedometer Digital Digital
Odometer Digital Digital
RPM Meter Digital Digital
Handle Type Three part handle bar Three part handle bar
Seat Type Split-Seat Split-Seat
Passenger Grab Rail Yes —
Engine Kill Switch Yes Yes
Additional Feature N/A Quick Shifter, Side Stand kill Switch, Smartphone Bluetooth Connectivity, Traction Control System
07 / Video & Photo Showcase

Media & Gallery

Click to view popup
GPX Demon GR165R

GPX Demon GR165R (GPX Demon GR165R)

GPX
2 Photos
HD Photos 2 images
GPX Demon GR165R Image 1
GPX Demon GR165R Image 2
No walkaround video available for this bike
Yamaha R15 V4

Yamaha R15 V4 (R15 V4 Standard)

Yamaha
1 Photo
HD Photos 1 image
Yamaha R15 V4 Main Image
No walkaround video available for this bike
08 / Real-World Trade-Offs

Strengths & Trade-offs

Pros vs Cons
Yamaha

Yamaha R15 V4

Strengths
  • ✓ Aggressive race-inspired styling with sharp fairing and LED lights gives it a high-end look.
  • ✓ Smooth and refined 155 cc VVA engine delivers enjoyable power and usable performance on city and highway roads.
  • ✓ Deltabox frame and USD front forks contribute to confident cornering and stable handling.
  • ✓ Traction control, quick shifter, and a fully digital LCD cluster with Bluetooth connectivity add a tech edge.
  • ✓ Real-world mileage averages generally agreed to be good for a sportbike (around ~40–45 km/l).
Trade-offs
  • ✕ Aggressive sportbike seating can be uncomfortable on long rides.
  • ✕ The ~11 liter tank is modest — meaning more frequent fuel stops on long trips.
  • ✕ Pricier than many other 150 cc competitors.
  • ✕ Rear seat space and comfort for a passenger is limited.
09 / Frequently Asked Questions

Frequently Asked Questions

From compared bikes
Yamaha R15 V4 What is the engine specification of the R15 V4?
The Yamaha R15 V4 comes with a 155 cc, liquid-cooled, 4-stroke SOHC engine with VVA (Variable Valve Actuation), producing around 18.4 PS power and 14.2 Nm torque.
Yamaha R15 V4 What is the top speed of the R15 V4?
The bike can reach a top speed of approximately 140–145 km/h depending on conditions and riding style.
Yamaha R15 V4 How much is the fuel economy (mileage)?
Typical real-world mileage averages around 40–45 km/l.
Yamaha R15 V4 Does the R15 V4 have ABS (Anti-Lock Braking System)?
Yes — it comes equipped with dual-channel ABS for safer and more controlled braking.
Yamaha R15 V4 What is the fuel tank capacity?
The R15 V4’s fuel tank holds around 11 litres.
Yamaha R15 V4 Does it have smartphone connectivity?
Yes — the R15 V4 has a digital display with Bluetooth connectivity that works with Yamaha’s Y-Connect app.
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