1.8TIRES AND WHEELS
TIRES
Match tires, tubes, air valves and caps to the correct wheel
rim. Contact a Harley-Davidson dealer. Mismatching can
result in damage to the tire bead, allow tire slippage on
the rim or cause tire failure, which could result in death
or serious injury. (00023a)
Use only Harley-Davidson approved tires. See a Harley-
Davidson dealer. Using non-approved tires can adversely
affect stability, which could result in death or serious
injury. (00024a)
Use inner tubes on laced (wire spoked) wheels. Using
tubeless tires on laced wheels can cause air leaks, which
could result in death or serious injury. (00025a)
NOTES
• Inner tubes must not be used in radial tires and radial tires
must not be used on laced (wire spoked) wheels.
• Tubeless tires are used on all Harley-Davidson cast and
disc wheels.
• Tire sizes are molded on the tire sidewall. Inner tube sizes
are printed on the tube.
• New tires should be stored on a horizontal tire rack. Avoid
stacking new tires in a vertical stack. The weight of the
stack compresses the tires and closes down the beads.
Check tire pressure and tread:
• As part of the pre-ride inspection.
• At every scheduled service interval.
1. Inspect each tire for punctures, cuts and breaks.
2. Inspect each tire for wear. Replace tires before they reach
the tread wear indicator bars.
NOTE
Missing indicator wear bars represent less than 1/32 in. (0.8
mm) tread pattern depth remaining.
3. Check for proper front and rear tire pressures when tires
are cold. Compare results against Table 1-7.
Table 1-7.Tire Pressures: 2008 Dyna Models
TIRE PRESSURE (COLD)LOADMODEL
REARFRONT
kPaPSIkPaPSI
2483620630Solo riderAll models except FXDF
2754020630Rider and passenger
2483624836Solo riderFXDF
2754024836Rider and passenger
TIRE REPLACEMENT
See Figure 1-12. Arrows on tire sidewalls pinpoint location of
wear bar indicators.
See Figure 1-13.Tread wear indicator bars appear on tire tread
surfaces when 1/32 in. (0.8 mm) or less tire tread
remains.Always remove tires from service before they reach
the tread wear indicator bars, indicating 1/32 in. (0.8 mm) tread
pattern depth remaining.
New tires are needed if any of the following conditions exist:
• Tire wear indicator bars become visible on the tread sur-
faces.
• Tire cords or fabric become visible through cracked side-
walls, snags or deep cuts.
• A bump, bulge or split in the tire is found.
• Puncture, cut or other damage to the tire that cannot be
repaired.
2008 Dyna Service: Maintenance 1-17
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