Rungu Electric Juggernaut Manual

V1.0 Rungu Front Wheel Alignment Procedure
Copyright 2017 Standard Bearer Machines, LLC Page 1of 11
RUNGU®Front Wheel Alignment Procedure
The front wheels on a Rungu Juggernaut, MDV, or Dualie may become misaligned due to impact from an
accident or aggressive off-roading. If you are presented with a Rungu with misaligned front wheels,
please read the following instructions carefully.

V1.0 Rungu Front Wheel Alignment Procedure
Copyright 2017 Standard Bearer Machines, LLC Page 2of 11
Contents
Tools required...............................................................................................................................................3
Checking for other damage/out-of-adjustment settings prior to wheel alignment.....................................3
Verifying handlebar position.....................................................................................................................3
Verifying linkage rod length..........................................................................................................................4
Re-aligning the wheels with the handlebars.................................................................................................5
Testing the reallignment...............................................................................................................................9
Disposition ..............................................................................................................................................11
Further questions........................................................................................................................................11

V1.0 Rungu Front Wheel Alignment Procedure
Copyright 2017 Standard Bearer Machines, LLC Page 3of 11
Tools required
•5mm hex wrench
•¼” hex wrench
•Adjustable wrench
•Rungu Wheel Alignment Jig
Checking for other damage/out-of-adjustment settings prior to wheel
alignment
Verifying handlebar position
Each handlebar should extend past the stem toward the center of the bike by 45 mm or 1 ¾”. If the
handlebars extend less than this amount, one or both front tires may touch the adjacent fork when
turned to the stops, which can result in excessive tire wear and fork damage.
Use measurement tape or a caliper to measure how far the handlebars extend as shown below.
If the handlebars extend past the stems less than the measurements shown, readjust the handlebars as
explained in the installation section of the Rungu Dualie owner manual.

V1.0 Rungu Front Wheel Alignment Procedure
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Verifying linkage rod length.
Steering Rungu with minimum tire scrub depends on the overall length of the linkage rod between the
two handlebars. The distance from the center of one linkage rod screw to the other should be 200 +/-
2mm. Measure the distance as shown below.
If the linkage rod is bent in such a way that the distance is shorter, replace the linkage rod tube before
continuing with the wheel alignment. You can purchase replacement linkage rod tubes by contacting
[e-mail]. To replace the linkage rod tube, use a ¼” hex wrench to remove one of the
linkage rod shoulder bolts and unscrew the rod ends from the damaged linkage rod. Be careful to retain
the jam nuts to use with the new linkage rod tube. When you rebuild the linkage rod, measure the
distance and adjust the length before replacing the linkage rod bolt. Tighten the linkage rod bolt with a
¼” hex bolt; don’t use a 6mm hex wrench as it will gall the bolt when tightened. Use an adjustable
wrench to tighten the jam nuts once the rod is in place.
If the linkage rod is too long or too short, adjust the length before proceeding to alignment. To adjust
the length, use a ¼” hex wrench to remove one of the linkage rod shoulder bolt. Then loosen the jam
nuts by unscrewing the rod end. Then adjust the length by rotating the rod end until it unscrews or
tightens to the right length. Replace the linkage rod in place. Tighten the linkage rod bolts with a ¼” hex
bolt; don’t use a 6mm hex wrench as it will gall the bolt when tightened. Use an adjustable wrench to
tighten the jam nuts once the rod is in place.

V1.0 Rungu Front Wheel Alignment Procedure
Copyright 2017 Standard Bearer Machines, LLC Page 5of 11
Re-aligning the wheels with the handlebars
If the Rungu has front mud flaps/fenders, use the 5mm hex wrench and an adjustable wrench to remove
the fender retention screws from the fork attachment hole before continuing.
After checking the handlebars and linkage rod and removing the mud flaps/fenders, use the 5mm hex
wrench to loosen both retention screws on the back of the stems so that both handlebars rotate
independently of the wheels.

V1.0 Rungu Front Wheel Alignment Procedure
Copyright 2017 Standard Bearer Machines, LLC Page 6of 11
Then place the alignment bar behind the fork stanchions and insert the alignment bar retention screws
through the fender/mud flap mounting holes into the threaded holes in the alignment jig as shown
below.
Tighten the alignment bar retention screws such that ALL four stanchions are pressed against the
alignment bar.

V1.0 Rungu Front Wheel Alignment Procedure
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Rotate the handlebars so that you can see that they align straight with the forks.

V1.0 Rungu Front Wheel Alignment Procedure
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Use a 5mm hex wrench to tighten each stem bolt incrementally to avoid stripping the threads in the
bolt. In practice, this involves tightening all four bolts until they are finger tight and then alternating
from one bolt to another, each with a quarter turn until they cannot be tightened further.

V1.0 Rungu Front Wheel Alignment Procedure
Copyright 2017 Standard Bearer Machines, LLC Page 9of 11
Testing the reallignment
Remove the alignment bar retention screws and bar.

V1.0 Rungu Front Wheel Alignment Procedure
Copyright 2017 Standard Bearer Machines, LLC Page 10 of 11
Test the clamping strength of the stem bolts by grabbing one or both handlebars and clamping one of
the front wheels between your knees.
Then try to rotate the handlebars to the right and left. The stem is tight if the wheel and steering
assembly flex. The stem is not tight enough if the other wheel misaligns and remains misaligned when
you remove force from the handlebars. Repeat this for the adjacent wheel.