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Old 01-10-2009, 12:09 AM   #1 (permalink)
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rake 5degrees and losing the front end

just a question if the neck on a roadking is raked 5 degrees can you still keep the stock front end or does it have to be replaced,i was told replaced due to the way the trees are made???? all opinions welcome especially frame modders and builders...thanks!!!
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Old 01-10-2009, 09:43 AM   #2 (permalink)
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Originally Posted by cthecope View Post
just a question if the neck on a roadking is raked 5 degrees can you still keep the stock front end or does it have to be replaced,i was told replaced due to the way the trees are made???? all opinions welcome especially frame modders and builders...thanks!!!
He may be talking going to raked trees to get the trail back in range.

It might be worth a phone call or email to Bad Dad. I'm sure they have done a few.
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Old 01-10-2009, 11:20 AM   #3 (permalink)
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Originally Posted by cthecope View Post
just a question if the neck on a roadking is raked 5 degrees can you still keep the stock front end or does it have to be replaced,i was told replaced due to the way the trees are made???? all opinions welcome especially frame modders and builders...thanks!!!
In either case (raking frame or using raked trees) you will like need at least slightly longer fork tubes. Raking the frame 5 degrees and keeping the same front end and trees will lower the front about an inch to inch and a half of ride height, depending on stock frame rake. Changing to 5 degree raked trees may require even more fork tube length. You need to measure the position of the top of the fork tube relative to the frame with both stock and raked trees. As an example, I have a Deuce with both a raked frame 5 degrees and 3 degree raked trees to improve trail. The stock Deuce trees have a lower fork position relative to the frame than any aftermarket trees, so you lose some ride height just from how the trees hold the fork tubes. Then you also lose some additional ride height due to the increased rake in the trees. With only my frame raked, using a stock Deuce front end (stock trees and forks), it lowered the front about 1.25-1.5 inches. The switch to 3 degree aftermarket raked trees required two inch over fork tubes to maintain the same ride height. The Triple tree manufactures should be able to advise you on fork length but don't be surprised if they can't. When I purchased my custom 3 degree trees form one of the leading manufactures they told me it would be the same ride height. I had to get CAD drawings of their trees to determine how far the fork screwed into the top tree so I could calculate the fork length I would need. I was amazed at how little many of the leading manufactures knew about front end geometry - unfortunately, many are just copying somebody parts and selling them.
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Old 01-10-2009, 11:34 AM   #4 (permalink)
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In either case (raking frame or using raked trees) you will like need at least slightly longer fork tubes. Raking the frame 5 degrees and keeping the same front end and trees will lower the front about an inch to inch and a half of ride height, depending on stock frame rake. Changing to 5 degree raked trees may require even more fork tube length. You need to measure the position of the top of the fork tube relative to the frame with both stock and raked trees. As an example, I have a Deuce with both a raked frame 5 degrees and 3 degree raked trees to improve trail. The stock Deuce trees have a lower fork position relative to the frame than any aftermarket trees, so you lose some ride height just from how the trees hold the fork tubes. Then you also lose some additional ride height due to the increased rake in the trees. With only my frame raked, using a stock Deuce front end (stock trees and forks), it lowered the front about 1.25-1.5 inches. The switch to 3 degree aftermarket raked trees required two inch over fork tubes to maintain the same ride height. The Triple tree manufactures should be able to advise you on fork length but don't be surprised if they can't. When I purchased my custom 3 degree trees form one of the leading manufactures they told me it would be the same ride height. I had to get CAD drawings of their trees to determine how far the fork screwed into the top tree so I could calculate the fork length I would need. I was amazed at how little many of the leading manufactures knew about front end geometry - unfortunately, many are just copying somebody parts and selling them.



BD, Can you post some pics?

I have 6 degrees added to the frame, stock trees, and +2" tubes from Forks by Frank.
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Old 01-10-2009, 11:49 AM   #5 (permalink)
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BD, Can you post some pics?

I have 6 degrees added to the frame, stock trees, and +2" tubes from Forks by Frank.
oh1deuce, I don't have any great pics but I'll see if I can attach something. My frame is one I fab'd from a wrecked Fatboy frame with nothing there forward of the top and front lower motor mounts. I didn't want to cut up my original Deuce frame so I saved it. Currently, like many of us, the only parts left from my new '02 Deuce are the motor and trans, most of the wiring harness and the lower legs. I almost have a complete spare Deuce.
Now what - insert image didn't give me the option to browse my pictures etc. Send me an email at BDuncan100@comcast.net and I can reply with pics.
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Old 01-10-2009, 01:15 PM   #6 (permalink)
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