Engineering:Honda CBR125R

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Honda CBR125R
Honda CBR125R.jpg
2004–2006 Honda CBR125R
ManufacturerHonda
Production2004–2016
AssemblyThailand (A.P. Honda)
PredecessorHonda NSR125
ClassSport bike
Engine125 cc (7.6 cu in), SOHC, liquid-cooled, single-cylinder
Related

The Honda CBR125R is a CBR series 125 cc (7.6 cu in) single-cylinder sport bike made by Honda. The CBR125R first appeared on the market in 2004. It is manufactured in Thailand by A.P. Honda alongside the similarly designed CBR150R, which is primarily aimed for the Far East market.

It has the smallest displacement engine of any CBR motorcycle.

History

The CBR125R was introduced in 2004 by Honda to fill in a gap in the 125 cc market left by the discontinued NSR125. It is powered by a 124.7 cc (7.61 cu in) liquid-cooled 4-stroke 2-valve SOHC single-cylinder engine with a claimed power output of 10 kW (13.4 hp; 13.6 PS).[1]

2004–2006

2006 Honda CBR125R

The models produced during these years resemble the CBR600F4i and used a carburettor in the fuel system. The Repsol color scheme was introduced in 2005 and remained for the following year only as the CBR125RS5/6.[2]

2007–2010

2008 Honda CBR125R

In 2007, the CBR125R received some major changes. This model got different front fairings to resemble the look of the CBR600RR as well as colour changes to the swingarm and front telescopic fork which are now black. Engine changes included the implementation of PGM-FI fuel injection system, IACV (Idle Air Control Valve) which operates alongside the PGM-FI, and HECS3 oxygen sensor to comply with EURO3 standards.

2011–2016

2011 Honda CBR125R

In 2011, the CBR125R received the first major overhaul since its inception, bringing its looks in line with the 2011 CBR250R, which in turn borrows from VFR1200F sports tourer.[2]

Specifications

Specification 2004–2006 2007–2010 2011–2016
Engine & transmission
Layout 4-stroke 2-valve SOHC single-cylinder
Capacity 124.7 cc (7.6 cu in)
Bore × stroke 58.0 mm × 47.2 mm (2.3 in × 1.9 in)
Compression ratio 11.0:1
Cooling system Liquid-cooled
Carburation Carburetor PGM-FI fuel injection
Starter Electric
Maximum power 10 kW (13.4 hp; 13.6 PS) @ 10,000 rpm (claimed)
Maximum torque 10.4 N⋅m (7.7 lbf⋅ft) @ 8,250 rpm (claimed)
Transmission 6-speed constant mesh
Final drive Chain
Cycle parts & suspension
Frame Steel twin-spar
Front suspension Conventional 31 mm (1.2 in) telescopic fork
Front tyre 80/90–17 100/80–17
Front brakes Single 276 mm (10.9 in) disc with axially-mounted 2-piston caliper
Rake 25° 35°
Rear suspension Steel swingarm with monoshock
Rear tyre 100/80–17 130/70–17
Rear brakes Single 220 mm (8.7 in) disc with single-piston caliper
ABS N/A
Dimensions
Length 1,920 mm (75.6 in) 1,946 mm (76.6 in)
Width 675 mm (26.6 in) 704 mm (27.7 in)
Height 1,070 mm (42.1 in) 1,089 mm (42.9 in)
Seat height 776 mm (30.6 in) 795 mm (31.3 in)
Wheelbase 1,294 mm (50.9 in) 1,310 mm (51.6 in)
Ground clearance 172 mm (6.8 in) 185 mm (7.3 in)
Trail 88 mm (3.5 in) 90 mm (3.5 in)
Wet weight 127 kg (280 lb) 137 kg (302 lb)
Fuel capacity 10 L (2.2 imp gal; 2.6 US gal) 13 L (2.9 imp gal; 3.4 US gal)

References

External links