Shock Angle Too Much??
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Stage III
Joined: Jan 2014
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From: West Central Florida
Shock Angle Too Much??
I'm swapping an FXR swingarm for a rubber mount FL swingarm on a Santee FLT/FXR Custom Rubber Mount Frame for a 5 Speed Transmission.
Everything is looking good except the rear shock angle seems to be too extreme to me. It literally is 45 degrees in angle. Is this way too much and will it cause a dangerous situation???
Everything is looking good except the rear shock angle seems to be too extreme to me. It literally is 45 degrees in angle. Is this way too much and will it cause a dangerous situation???
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Joined: Nov 2006
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From: la la land jerzey
at some point it wont go up and down and will become a hard tail --
i would disassemble the shocks and see if it can in fact move up and down from bottom location 2 1/2 to 3 inches if not move the mount --
in my shop we have the tool to take the shock apart if you were local we could help -- johnjzjz
i would disassemble the shocks and see if it can in fact move up and down from bottom location 2 1/2 to 3 inches if not move the mount --
in my shop we have the tool to take the shock apart if you were local we could help -- johnjzjz
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Stage III
Joined: Jan 2014
Posts: 3
Likes: 0
From: West Central Florida
at some point it wont go up and down and will become a hard tail --
i would disassemble the shocks and see if it can in fact move up and down from bottom location 2 1/2 to 3 inches if not move the mount --
in my shop we have the tool to take the shock apart if you were local we could help -- johnjzjz
i would disassemble the shocks and see if it can in fact move up and down from bottom location 2 1/2 to 3 inches if not move the mount --
in my shop we have the tool to take the shock apart if you were local we could help -- johnjzjz
Thanks.
Last edited by Valo; Jan 20, 2014 at 01:28 PM. Reason: words
Club Member
Joined: Mar 2009
Posts: 66,141
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From: Niles Canyon Ca.
Think you'll have too much travel at that angle probably hitting the inside of the fender , the older FLH & FX shocks only have 2' of travel and the FRX shocks will not work too soft . Here's a shot of the stock shock angle on a 4 sp frame .
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Joined: Apr 2010
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From: Sausage Country, AB
Shocks are designed to work in a straight line; all specifications are based on linear testing. Mounting the shocks so they are at a less-than-ideal angle reduces their operating capabilities, with the extreme being seal failure prior to mechanical damage.
The ideal operating angle is determined by measuring from the center of the swingarm bolt to the center of the upper shock mount bolt hole. This distance serves as the radius of the circle upon which the lower shock mount should be placed, again using the swingarm bolt as the starting point. Length of shock then determines the rear ride height.
The key is to have both shock mounts equidistant from the swingarm bolt; this ensures the shock is moving in as linear a fashion as possible.
Clearance between the shock and fender is easily adjusted by equally spacing out the top and bottom mounts.
The ideal operating angle is determined by measuring from the center of the swingarm bolt to the center of the upper shock mount bolt hole. This distance serves as the radius of the circle upon which the lower shock mount should be placed, again using the swingarm bolt as the starting point. Length of shock then determines the rear ride height.
The key is to have both shock mounts equidistant from the swingarm bolt; this ensures the shock is moving in as linear a fashion as possible.
Clearance between the shock and fender is easily adjusted by equally spacing out the top and bottom mounts.
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