Spec Sheet
The information below is specific to the Honda - NT 400 J Bros MkI (NC25) 88, showing anything for service information to the amount of fork oil or even the tyre pressures. If you would like to contribute any missing information, please use the edit link below.
Back.Bike Info
CC:
400
Bike Description:
Japanese Market Motorcycle - A large number of used Bros's imported into the UK 95-00.
52 Degree V Twin
Seat Surround logo - Product 2 - Product 1 is near Identical 650cc
Chassis info:
NC25
Service
Coolant:
50-50 Deionised water and anti freeze
Cooling System (litres):
2 litres total, 1.6 litres after drain.
Engine Oil Grade SAE:
10W-40
Engine Oil quantity (litres):
2.0
Engine Oil quantity with filter (litres):
2.3
Final Drive grade:
O-ring 525 chain with 112 links
Fork oil grade:
10W
Front Fork Oil cc (left leg):
499cc, 133mm air gap
Front Fork Oil cc (right leg):
499cc, 133mm air gap
Gearbox Oil grade:
N/A
Idle Speed (rpm):
1200 +/- 100 rpm
Spark Plugs Gap (mm):
0.8 - 0.9 mm
Sprocket carrier bearing:
6007 2RS, 35 x 62 x 14
Tyre Pressure Back Bar / psi:
33 psi, 36 psi for prolonged high speed riding.
Tyre Pressure Back - Pillion Bar / psi:
36
Tyre Pressure Front Bar / psi:
33 psi
Tyre Pressure Front - Pillion Bar / psi:
33
Valve Clearance Cold - Exhaust:
0.20+-0.02 mm
Valve Clearance Cold - Inlet:
0.15+-0.02 mm
Brakes
Front:
Disc
Rear:
Disc
Front Disc Size:
320mm
Front-Pistons-per-caliper:
4
Rear Disc Size:
208mm
Rear-Pistons-per-caliper:
1
Dimensions
Dry Weight:
163kg
Fuel Capacity:
12 litres
Ground Clearance:
155mm
Height:
1050mm
Length:
2060mm
Rake:
27 degrees
Reserve Fuel Capacity:
1.2 litres
Seat Height:
695mm
Trail:
111mm
Wet Weight:
175Kg
Wheelbase:
1425mm
Width:
695mm
Electrics
Voltage:
12v
Battery:
YTX9-BS CTX9-BS
Bulb-Headlight:
H4
Charging System:
12v Regulator
Ignition:
Electronic CDI
Main Fuse:
30A main, 10A x 6, 15A x 1.
Spark Plugs:
4 x DPR8EA-9
Engine
Type:
Liquid Cooled 4 Stroke SOHC V Twin
Air Filtration:
Paper element
Bore x Stroke:
64mm x 62mm
Carburation:
2 Keihin CV
Compression Ratio:
10:1
Displacement:
398
Lubrication System:
Forced pressure and wet sump
No. of Valves:
6 2 Inlet 1 Exhaust Per Cylinder
Starting:
Electric
Valve Train:
Silent chain
Transmission
Chain Number of Links:
112
Chain type:
O-ring 525 chain with 112 links
Clutch Type:
Wet multi plate with coil springs
Final Drive:
Chain
Gearchange Pattern:
1-N-2-3-4-5
Gear Ratio 1st:
14/42
Gear Ratio 2nd:
18/37
Gear Ratio 3rd:
22/35
Gear Ratio 4th:
22/29
Gear Ratio 5th:
23/26
Sprocket front:
JTF 296-16
Sprocket rear:
JTR 1311-44
Transmission:
5 speed manual
Misc.
Colour Options:
Wine Red,Black,Grey
Exhaust:
Two into One with Collector
Frame:
Aluminium Twin Tube Diamond as stressed Member
Fuel Control:
Electric Fuel Pump
Motorcycle Style:
ROADSTER
Place of Manufacture:
Japan
Swing Arm:
Single Sided
Power
Fuel Consumption:
20 km per Litre
Max Power Output:
37 PS or 36 Hp at 8500 rpm
Max Torque:
35 Nm at 6500 rpm
Power/Weight Ratio:
0.1512 KW per Kg
Top Speed:
175 kph 108 mph
Suspension
Front:
41mm Showa Telescopic fork, 130mm travel.
Rear:
Monoshock, 120mm axle travel.
Tyres
Front:
110/80-17 Tubeless
Rear:
150/70-ZR17 Tubeless
Wheels
Bearing Front Left:
6004 LU, 20mm x 42mm x 12mm
Bearing Front Right:
6004 LU, 20mm x 42mm x 12mm
Rear:
Two 6908 LU 40mm x 62mm x 12mm, and one needle roller bearing NK50/25 50mm x 62mm x 25mm.
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All information presented on the website is given to the best of our knowledge at the given time. All information is intended to only as a guide. A major Japanese manufacturer's quote:
We reserve the right to vary our specification with or without notice, and as such time and in such manner as we think fit.