Installation Guide
Page 7 of 12
Harley-Davidson: Sportster
Figure 10
d. Attach axle clamp to swing arm using the supplied hardware.
Snug hardware just enough to still allow the clamp to slide
against the swing arm as adjustments will be made later.
Figure 11
Qty per
side
Description
1
1/2-13x2-1/4 socket head bolt (front
hole)
1
1/2-13x2-1/2 socket head bolt (rear
hole)
4
½ SAE SS flat washers
2
1/2-13 nylock nut
Figure 11
e. Position drive belt onto rear pulley.
f. Install cross tubes using 2-3 drops of oil on the cross tube
bolt threads, install and torque to 150 lb. ft.
3.9 Aligning and Tensioning Drive
Belt
The slots in the swing arm axle clamp
mount plate allow the rear end assembly
to move
approximately 1.25” forward or
rearward. The rear end assembly also
has a total movement of approximately
1.125" side to side. This movement is
accomplished by sliding the axle
housing within the axle clamps; it is
limited by the dowel pin and grove. The
following steps are a starting point to
properly align the belt.
a. Center rear end assembly within the
axle clamps. Ensure center by
measuring from axle clamp to fender
bracket on both sides until equal.
b. Tighten nuts on axle clamp to 31 lb. ft.
(Note: Ensure braided brake line is
seated properly in saddle and does not
get pinched between the two halves.)
c. Adjust adjuster bolts to set belt tension
and to square rear end assembly to
swing arm. The belt should have
approximately ¾” of total vertical
movement. Tighten jam nut to lock
adjuster bolt.
d. Rotate rear sprocket several times by
hand to register belt on sprocket. The
belt should run in the center of the rear
sprocket and approximately 1/8” from
inside edge of the front counter-
sprocket. Make small adjustments if
needed and recheck alignment. Figure
12
NOTE: Belt tension and alignment
should be checked prior to final
assembly of trike kit. Check with vehicle
secured on jack stands and adjust
accordingly if needed.