1993-2001 Honda NSR125R Technical Specifications


Honda NSR125R

Engine Type: Single Cylinder Liquid Cooled 2-Stroke
Crankcase Reed Valve Induction
Bore and Stroke: 54mm x 54.5mm
Capacity: 124.8cc
Compression Ratio: 6.8:1
Carburettor: 28mm Delorto PHBH
Clutch: Wet Multi Plate with Coil Springs
Maximum Power (UK Restricted model): 12.5hp @ 9500 rpm
Maximum Power (Unrestricted model): 28hp @ 9500 rpm
Maximum Torque: Not Available
Ignition: CDI
Spark Plug Type: Not Available
Spark Plug Gap: 0.7mm – 0.8mm (0.028″ – 0.031″)
Idle Speed: 1300rpm 100rpm 

Length: 2010mm
Width: 670mm
Height: 1065mm
Wheelbase 1345mm
Ground Clearance: 135mm
Seat Height: Not Available
Dry Weight: 132Kg
2-Stroke Oil: Not Available
Transmission Oil: Not Available
Fuel Tank: 13 litre (primary)
1.3 litre (reserve)
Castor: Not Available
Trail: Not Available
Front Tyre & Wheel: 100/80 x 17″ Aluminium Enkei Style
Rear Tyre & Wheel: 130/70 x 17″ Aluminium Enkei Style
Tyre Pressure: Not Available
Tyre Pressure: Not Available
Front: Telescopic oil filled damper
Rear: Pro-Link® with external coil and damper with
variable spring preload adjustment only



Single 316mm floating disk

with cast aluminium 4 piston caliper.


Single 220mm disk with cast aluminium with single piston sliding caliper.
Clutch operation system Wet multiplate
Transmission 6 speeds constant mesh
Primary reduction 3.250 (65/20)
Final reduction 2.692 (35/13)
Gear ratio:
1st 3.090 (34/11)
2nd 2.000 (30/15)
3rd 1.470 (25/17)
4th 1.210 (23/19)
5th 1.043 (24/23)
6th 0.916 (22/24)
Gearshift pattern 1 – N – 2 – 3 – 4 – 5 – 6
Drive Sprocket (front): 15T
Driven Sprocket (rear): Not Available

Electrical System.
Battery Type: 12V
Charging System Output: 180Kw
Front: Not Available
Rear: Not Available
Park: Not Available
Turn Indicator: Not Available
Instrument Backlight: Not Available
Neutral Warning: Not Available
Indicator Warning: Not Available
Main Beam Warning: Not Available
Main: Not Available
Accessory: Not Available
Ignition CDI
Spark plug BR9ECS (NGK) or W27ESR-U (ND)
Spark plug gap 0.7 – 0.8 mm (0.028 – 0.031 in)
Fuse 15 A

Thanks to Putera Gunong Lepak for the additional info!

via: The best NSR website in the world: http://nsr-world.com/specs/html/nsr125/index.htm