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Side-by-Side Bike Comparison · September 2026

Hero Xtreme 125R vs Speeder Big Monster 165 FI

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

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💎 Best Value

Hero

Hero Xtreme 125R

Engine 125 cc

Power 11.4 bhp

Mileage 66 kmpl

Brakes / ABS Single-ch. ABS

Price in BD ৳174,500

Details

⚡ Power Leader

Speeder

Speeder Big Monster 165 FI

Engine 160 cc

Power 15.3 bhp

Mileage 40 kmpl

Brakes / ABS No

Price in BD ৳179,500

Details

01 / Bottom-Line Takeaway

Quick Verdict

Editorial Positioning

VALUE CHAMPION #1

Hero Xtreme 125R (Hero Xtreme 125R)

The Value Argument

Maximizes features per taka spent at ৳174,500. 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

Speeder Big Monster 165 FI (Speeder Big Monster 165 FI)

The Performance Benchmark

Delivers class-leading punch with 15.3 bhp and sharp throttle response. Backed by No 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: 15.3 Bhp

Hero Xtreme 125R (Hero Xtreme 125R) 11.4 bhp @ 8250 rpm

Speeder Big Monster 165 FI (Speeder Big Monster 165 FI) 15.3 bhp @ 8000 rpm

Peak Torque Delivery (Nm) Top: 14.6 Nm

Hero Xtreme 125R (Hero Xtreme 125R) 10.5 Nm @ 6500 rpm

Speeder Big Monster 165 FI (Speeder Big Monster 165 FI) 14.6 Nm @ 6000 rpm

Claimed Top Speeds

100 km/h

Hero Xtreme 125R (Hero Xtreme 125R)

120 km/h

Speeder Big Monster 165 FI (Speeder Big Monster 165 FI)

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.

Hero

Hero Xtreme 125R (Hero Xtreme 125R)

8.8 / 10

Performance 8.6

Comfort 7.5

Tech & Features 9.4

Fuel Economy 9.5

Value for Money 8.8

Speeder

Speeder Big Monster 165 FI (Speeder Big Monster 165 FI)

8.4 / 10

Performance 9.5

Comfort 8.4

Tech & Features 7.4

Fuel Economy 8.1

Value for Money 8.7

06 / Full Technical Comparison

Specification Sheet

Show Differences Only

Bike Information 11

Bike Name	Hero Xtreme 125R	Speeder Big Monster 165 FI
Brand	Hero	Speeder
CC	125	160
Regular Price	174500	179500
Bike Type	Naked Sports	Naked Sports
Distributor/Seller	HMCL Niloy Bangladesh Limited	—
Model Year	2024	N/A
Brand Origin	India	N/A
Made In	India	N/A
Assemble In	Bangladesh	N/A
Launched Date	2024-10-24	N/A

Engine 15

Engine Type	Air cooled, 4 stroke, Single cylinder	Single cylinder, 4 stroke, Oil-Cooled
Displacement	125	163
Maximum Power	11.4 Bhp @ 8250 RPM	15.3 Bhp @ 8000 RPM
Maximum Torque	10.5 NM @ 6500 RPM	14.6 NM @ 6000 RPM
Bore	52.4 Mm	N/A
Stroke	57.8 Mm	N/A
Compression Ratio	9.9:1	N/A
Valves	2	N/A
Fuel Supply	Fuel Injection	EFI
No of Cylinders	1	1
Engine Cooling	Air Cooled	Liquid Cooled
Starting Method	Electric	Electric
Engine Oil Grade	10W30	10W40
Engine Oil Capacity	1.2 L(With Out Filter)	1 L (Without Filter)
Best Lube For	Mobil Super Moto 10W30	Mobil Racing 4T 10W40

Transmission 4

Transmission Type	Manual	Manual
No of Gears	5	6
Clutch Type	Wet-multiplate	Wet-multiplate
Drive Type	Chain Drive	Chain Drive

Mileage & Top Speed 2

Mileage	66 Kmpl (Approx)	40 Kmpl (Approx)
Top Speed	100 Kmph (Approx)	120 Kmph (Approx)

Chassis & Suspension 3

Chassis Type	Diamond Frame	N/A
Front Suspension	Dia. 37 Conventional Fork	Telescopic USD
Rear Suspension	Hydraulic Shock Absorbers	Monoshock

Brakes 6

Front Brake Type	Disc Brake	Single Disc
Rear Brake Type	Disc Brake	Disc Brake
Front Brake Diameter	240 mm	N/A
Rear Brake Diameter	130 mm	N/A
Anti-Lock Braking System (ABS)	Single Channel ABS	No
Braking System	Single Channel ABS	Double Disc

Wheels & Tyres 4

Front Tyre Size	90/90 - 17 TL	110/70-17
Rear Tyre Size	120/80 - 17 TL	130/70-17
Tyre Type	Tubeless	Tubeless
Wheel Type	Alloy	Alloy

Dimensions 8

Overall Length	2009 Mm	1980 mm
Overall Width	793 Mm	830 mm
Height	1051 Mm	1120 mm
Ground Clearance	180 Mm	180 mm
Weight	136 Kg	135 Kg
Fuel Tank Capacity	10 L	12 Liters
Wheelbase	1319 Mm	1350 mm
Seat Height	794 Mm	N/A

Electricals 5

Battery Type	MF	MF
Battery Voltage	12v	12V 7Ah
Head Light	LED	LED
Tail Light	LED	LED
Indicators	LED	LED

Features 8

Speedometer	Digital	Digital
Odometer	Digital	Digital
RPM Meter	Digital	Digital
Handle Type	Info Not Available	Three part handle bar
Seat Type	Split-Seat	Split-Seat
Passenger Grab Rail	Yes	No
Engine Kill Switch	Yes	Yes
Additional Feature	N/A	N/A