Table 1. Engine: Twin Cam 103™
ITEM
SPECIFICATION
Number of cylinders
2
Type
4-cycle, 45 degree
V-Type, air-cooled
Compression ratio
9.6:1
Bore
3.875 in
98.42 mm
Stroke
4.375 in
111.12 mm
Displacement
103.0 in3
1690 cm3
Lubrication system
Pressurized, dry sump
with oil cooler
Table 2. Electrical
COMPONENT
SPECIFICATION
Ignition timing
Not adjustable
Battery
12 volt, 28 amp-hr, 370 CCA
sealed and maintenance free
Charging system
Three-phase, 50-amp system
(585W @ 13V, 2000 rpm,
650W max power @ 13V)
Spark plug type
HD-6R12
Spark plug size
12 mm
Spark plug gap
0.038-0.043 in.
0.97-1.09 mm
Spark plug torque
12-18 ft-lbs
16.3-24.4 Nm
Table 3. Transmission
TRANSMISSION
SPECIFICATION
Type
Constant mesh, foot shift
Speeds
6 forward
NOTE
Specifications in this publication may not match those of official certification in some markets due to timing of publication printing, variance in testing methods, and/or vehicle differences. Customers seeking officially recognized regulatory specifications for their vehicle should refer to certification documents and/or contact their respective dealer or distributor.
Table 4. Sprocket Teeth
DRIVE
ITEM
NUMBER OF TEETH
Primary
Engine
34
Clutch
46
Final
Transmission
30
Rear wheel
70
Table 5. Overall Drive Ratios
GEAR
RATIO
1st Gear
10.537
2nd Gear
7.303
3rd Gear
5.425
4th Gear
4.393
5th Gear
3.742
6th Gear
3.157
Table 6. Capacities
ITEM
U.S.
LITERS
Fuel tank (total)
6.00 gal
22.71
Low fuel warning light on
1.00 gal
3.79
Oil tank with filter
4.00 qt.
3.79
Transmission
(approximate)
1.00 qt.
0.95
Primary chaincase
(approximate)
1.40 qt.
1.32
Table 7. Tires
MOUNT
SIZE
APPROVED TIRE
PRESSURE (COLD)
PSI
kPa
Front
16 in.
Dunlop D402F MT90B16
36
248
Rear
15 in.
Dunlop P205/65 R15
26
179
WARNING
Harley-Davidson recommends the use of its specified tires. Harley-Davidson vehicles are not designed for operation with non-specified tires, including snow, moped and other special-use tires. Use of non-specified tires can adversely affect stability, handling or braking and lead to loss of vehicle control, which could result in death or serious injury. (00024d)
NOTE
Gross Vehicle Weight Rating (GVWR) (maximum allowable loaded vehicle weight) and corresponding Gross Axle Weight Ratings (GAWR) are listed on a label located on the right side front downtube.
Table 8. Weights
ITEM
FLHTCUTG
FLHXXX
LB
KG
LB
KG
Weight as shipped from factory
1157
524.8
1091
494.9
GVWR
1700
771.1
1700
771.1
GAWR front
500
226.8
500
226.8
GAWR rear
1200
544.3
1200
544.3
Table 9. Dimensions
ITEM
FLHTCUTG
FLHXXX
IN
MM
IN
MM
Wheelbase
66.6
1692
66.6
1692
Overall length
105.8
2687
105.8
2687
Overall width
54.7
1389
54.7
1389
Ground clearance
4.7
119
4.7
119
Overall height
59.3
1506
52.9
1344
Saddle height*
27.1
688
26.8
679
*With 81.7 kg (180 lb) rider on seat.
Table 10. Bulb Chart
LAMP (ALL LAMPS 12 VOLT)
BULBS
REQUIRED
CURRENT DRAW
AMPERAGE
HARLEY-DAVIDSON
PART NUMBER
Headlamp
1
4.58/5.0
68329-03
Tail/stop/rear turn signal lamp
2
0.59/2.10
68167-04
Front turn signal lamp
2
2.25/0.59
69331-02
Tour-Pak tail/stop lamps (FLHTCUTG)
2
0.59/2.10
68168-89A
Fender tip lamps (FLHTCUTG)
1
0.30
68193-95
Auxiliary lamps (FLHTCUTG)
2
2.1
68453-05
Instrument panel lamps*
High beam indicator
Instrument panel is illuminated with LEDs. Replace entire assembly upon failure.
Oil pressure indicator
Neutral indicator
Turn signal indicator
License plate lamp
2
0.35
52441-95
Reverse enable lamp*
Illuminated with an LED. Replace entire assembly upon failure.
Tour-Pak side lamps* (FLHTCUTG)
Illuminated with an LED. Replace entire assembly upon failure.
Gauge lamps
Speedometer
N/A
N/A
N/A
Tachometer
N/A
N/A
N/A
Voltmeter
1
0.24
67445-00
Oil pressure indicator
1
0.24
67445-00
Air temperature gauge
1
0.24
67445-00
Fuel gauge
1
0.24
67445-00
Items with *
Illuminated with LEDs. Replace entire assembly upon failure.