1982-2003 Throttle Addiction Sportster Hardtail Installation Guide
- June 27, 2024
- Throttle Addiction
Table of Contents
- 1982-2003 Throttle Addiction Sportster Hardtail
- Tools Needed
- Hardware included with the Deluxe Hardtail Kit
- Video install instructions
- How to mount OEM brake calipers on the hardtail kit
- HARDWARE LIST FOR THE SPORTSTER HARDTAIL KIT
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
1982-2003 Throttle Addiction Sportster Hardtail
HOW TO INSTALL YOUR THROTTLE ADDICTION SPORTSTER HARDTAIL
1982-2003 Instructions
Made in the USA
The Deluxe Evolution Sportster Hardtail Kit 1982-2003
Tools Needed
Square/Straightedge, Tape Measure, Marker/Scribe, Cardstock, Cutting Tool,
Grinder, Center Punch, Drill, 3/8″ Bit, Barrel/Drum Sander, Disassembly Tools,
Service Manual, 230V Welder
Important Stuff
- Before you begin this installation, read all of the instructions completely and carefully. This installation requires welding and the use of power tools.
- All welding must be performed by a certified welding professional. All welding must be done using equipment powered by a 230V power source or larger to allow for sufficient weld penetration.
- Prior to final assembly chase all threaded holes (Axle adjuster, sissy bar mount, oil tank mount, etc.) and any chrome hardware or axle adjusters.
- Always use the proper protective equipment during installation.
- Throttle Addiction assumes no liability for damage to property or personal injury caused during installation or because of misuse.
Hardware included with the Deluxe Hardtail Kit
- Banerv Tie-down Strap & Hardware 4pieces
- Fender Spacer Long & Short 2 pieces 1
- Colonv Axle Adiusters and Nuts 4pieces
- Rear Caliper Mount 1982-1999 3 pieces
- Rear Caliper Mount 2000-2003 5 pieces
Video install instructions
- Cutting OEM tame and welding the hardtail +
- Full disassembly, assembly, and lineal result
- Measure 16″ from the front ot the neck down the backbone. Mark tor cut.
- Measure hardtail from bottom motor mount to the end ot the frame not the end ot the slug.
- Using the measurement from Figure A, measure and mark the frame from the bottom motor mount on the stock frame. Mark for cut.
- Use cardstock with square edges and wrap the tube to ensure a square cut line.
- Cut your tubes a little longer than your marks.
- Then sand down to the marks to ensure a flat mating surface.
- Drill 3/8″ holes tor plug welds 1/2″ in from end ot tube. Bevel ends ot tubing and barrel sand inner area.
- Insert the hardtail into the OEM frame section. Ratchet straps may be needed to pull the two halves together.
- Cut on the shipping strap.
- We ship the hardtail with small tack welds on the slug to keep a small gap between frame and hardtail.
- This is to ensure your welds penetrate the slug and both sides of the tube.
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Install the motor into the frame.
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Tighten rear motor mounts first. ENSURE LOWER MOTOR MOUNT DOWELLS ARE FULLY SEATED.
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Install remaining motor mounts and hardware IOOSIV
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With a straight edge on the backbone, adjust the backbone gap until straight edge lays flat on the backbone.
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Go back and tighten all motor mounts
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Weld top and bottom as much as you can with the motor in, including slug welds.
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Remove motor and finish welding.
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Sand to desired smoothness.
Additional Assembly Resources
How to mount OEM brake calipers on the hardtail kit
Video instructions tor brake caliper mount install Runtime -11 minutes
- Remove rubber bumper
- Use a file to open up the channel until the brake stay block slides in
- Grind lower web to 5/8″ depth
It may be necessary to gind bottom of bracket to reduce contact with frame
- Remove rubber bumper and grind off tab
- Measure 2″ back from end of lower web
- Grind lower web to 1/2″ thick from mark back
It may be necessary to grind bottom of bracket to reduce contact with frame
Proper installation of the battery tie down shown above
- Cut hoop from stock axle adjuster as shown in Figure A.
- Hoop will be reused as an axle spacer during final assembly. Installation shown in Figure B.
- Oil line locations
HARDWARE LIST FOR THE SPORTSTER HARDTAIL KIT
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>