DIY Motorcycle Shock Spring Compressor

Here's a handy tool for disassembling motorcycle and ATV shocks. This tool provides a reasonably safe way of dealing with the rather high forces involved in shock disassembly.

The measurements in the video are specific to 2004-2006 Harley Davidson Sportsters. Other years, makes, and models may work with no changes. The basic idea should easily adapt to many applications.

I used a CNC mill for the machining, but simpler tools can certainly be substituted.

Tools required:
A way to bore a 2-1/8" to 2-1/4" hole (mill/lathe/drill press, cutting tools, hole saws, etc)
A way to bore two 7/16" or 15/32" holes (drill press and twist drill bits)
Welder (most any machine will do)
A set of wrenches or sockets

Materials list:
5" x 5" x 1/2" aluminum or steel plate
Two 13" lengths of 7/16" all thread rod
Two 7/16" nuts & washers
5" x 1/2" bolt
1/2" nut
Two 1/2" washers

Category:

Autos & Vehicles

Tags:

• Spring
• Compressor
• sieg
• grizzly
• taig
• sherline
• homier
• speedway
• micromark
• micro
• mark
• cummins
• harbor
• freight
• hf
• mini
• mill
• x1
• x2
• x3
• cnc
• fusion
• machine
• mach3
• artsoft
• milling
• ball
• screw
• stepper
• motor
• keling
• geckodrive
• g540
• cambam
• harley
• davidson
• hd
• sportster
• 883
• 883xl
• 1200
• xl
• 1200xl
• motorcycle
• cycle
• shock
• absorber
• spring

[hoffjesse]

Liked the video, I would have tried to make one for myself it wasn't for this big vise I came across...

[70Z15]

Pretty slick.  Can I borrow it?

[TheBerkeleyGang]

And pray that the welds on those nuts don't break...

[stubert2000]

easier still, drill press or hand drill and a vice. 3 punch marks, 2 drill bits

[cumminsscout]

Amazing - all those motors wirring just to bore a hole! In the good old days you would just bore that plate on the lathe without all the fancy CNC stuff with a bit you could regrind by hand.

Nice tool - I might make one.

[chunkyfecalbreakfast]

I wish I could ratchet that fast. Good vid, thanks.