Table of Contents
This is an old revision of the document!
1958 Sportster
Vehicle Identification Number (VIN)
- The serial number is stamped on the left side of the engine case. The first 5 or 6 digits represent the year and model 1)
Introduction of the XLH (H = High Performance) an XLCH (C = Competition - stripped frame, H = High Performance) models. .
Original Price: $1,265
Specifications
Engine
- Engine type: 4 cycle Overhead Valves, 45 degree V2 2)
- Displacement: 54 ci / 883 cc
- Hemi-spherical style heads
- Bore: 3 in / 7.62 cm 3)
- Stroke: 3.8125 in / 9.68 cm 4)
- 90 Degree Valve Angle
- Horsepower: 42 @ 5,500rpm (XL) 5)
XL | XLH,XLCH | |
---|---|---|
Compression | 7.5:1 | 9.0:1 |
Torque | 48 ft-lb / 2.023 Nm @ 3600 RPM | 52 ft-lb / 2.191 Nm @ 3800 RPM |
Capacities
Dimensions
- Weight: 495 lb / 225 kg 11)
XL, XLH | XLCH | |
---|---|---|
Wheelbase | 56.6 in / 143.51 cm | 57 in / 137.6 cm |
Overall Length | 87 in / 221 cm | 83.25 in / 211.4 cm |
Overall Width | 34 in / 86.36 cm | 29.5 in / 75 cm |
Overall Height | 40.5 in / 103 cm | 42 in / 106.7 cm |
Road Clearance | 2.5 in / 6.35 cm minimum | 4 1/8 in / 10.478 cm minimum |
Drivetrain
- Constant Mesh - Foot shift
- Speeds - 4 Forward
- Number of Sprocket Teeth
- Engine: 34
- Clutch: 59
- Transmission: 21 (XLCH 20)
- Rear Wheel: 51
- Gear Ratios (XL,XLH)
- 1st: 10.63 to 1
- 2nd: 7.69 to 1
- 3rd: 5.82 to 1
- 4th: 4.21 to 1
- Gear Ratios (XLCH)
- 1st: 11.16:1
- 2nd: 8.08:1
- 3rd: 6.11:1
- 4th: 4.42:1
Tires
- Front and rear: 3.50 x 18
- Tire pressure
- Front: 14 psi / .96 bar
- Rear: 18 psi / 1.24 bar
Models
Model Production Numbers
Colors
Model
XL
XLC
- Both the XLC and XLCH had: 21)
- Larger ports and valves
- High domed pistons
- Light ended tappets
- Magneto ignition
XLCH
- Both the XLC and XLCH had: 22)
- Larger ports and valves
- High domed pistons
- Light ended tappets
- Magneto ignition
XLH
- In 1958, the XLH was introduced with: 23)
- Higher compression and larger valves
- Camshaft gears became integrated with the camshafts, eliminating the need for a woodruff key.
- Drive gearshaft was enlarged .125 in.
- Drive gear and second gear support shaft was enlarged .125 in and had 8 splines (instead of 6).
- Choke control lever moved from left side to the air cleaner.
- Heavier clutch cover and new gasket.
- New oil resistant clutch hub seal and gearshaft o-ring.
- Two brush generator.
- Optional turn signals and 1 in over suspension.
1958 XLH 24) |
External Links
1)
HD Parts Catalog XLH/XLCH-1000 #(99451-78)
24)
photos courtesy of Magneto Sportster http://xlforum.net/forums/showthread.php?threadid=2026106