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Author Topic: How to do Bump steer mod.  (Read 4166 times)

Offline 92lt250wannabe

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How to do Bump steer mod.
« on: March 19, 2015, 08:50:50 am »
In order to do the bump steer mod, the steering horns (where the tie rod end connects at the spindle) needs to be flip flopped from the left side to the right. They also will be flipped upside down. So instead of angling up they angle down. This will get the tie rod more parallel with the a arms. Here are some pictures to help everyone understand.

Stock setting



Bump steer mod


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Offline GrkGuy

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Re: How to do Bump steer mod.
« Reply #1 on: March 19, 2015, 05:49:43 pm »
Nice why didn't someone do this a long time ago.
life's journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sidays totally worn out shouting "HOLY SH*T...WHAT A RIDE!"

Offline 92lt250wannabe

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Re: How to do Bump steer mod.
« Reply #2 on: March 19, 2015, 07:12:36 pm »
I have no idea but I hope this clears the air on the bump steer confusion.

Offline GrkGuy

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Re: How to do Bump steer mod.
« Reply #3 on: March 20, 2015, 04:10:28 pm »
Do it again with a whit back ground.
life's journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sidays totally worn out shouting "HOLY SH*T...WHAT A RIDE!"

Offline 92lt250wannabe

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Re: How to do Bump steer mod.
« Reply #4 on: March 20, 2015, 08:21:12 pm »
I think this is pretty obvious on what has to happen.

Offline Izzo

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Re: How to do Bump steer mod.
« Reply #5 on: March 28, 2015, 09:53:50 pm »
Do I have to flip the tie rods up side down and also on the end of the steering stem or do I just bolt it all back up after flipping the horns like you did.

Offline Dutch_Rutter

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Re: How to do Bump steer mod.
« Reply #6 on: March 29, 2015, 11:13:55 am »
Just them bolt it back up like normal. Only difference is how these "horns" are facing instead of angled up they are angled down. to get even better steering one can also pick the camber shims up from Mitch, then you will have a very well handling LT.
04 CRF 450R----> My Beast
03 LTZ 400------> Wife's Boy Friend
90 LT 250R------> Done and Ripping
01 CR 125-------> Traded For the LT
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Offline Izzo

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Re: How to do Bump steer mod.
« Reply #7 on: April 04, 2015, 11:39:43 pm »
Thank you.


Offline Izzo

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Re: How to do Bump steer mod.
« Reply #8 on: May 03, 2015, 10:03:45 pm »
So I did this mod. The bike Doesn't like to stay in a straight line. It's all over the place and follows grooves. I didn't ride it before doing the mod. I did notice the camber is positive And needs corrected. Do you guys think it's from the camber or the camber is part of it and it needs the toe too?

Offline Dutch_Rutter

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Re: How to do Bump steer mod.
« Reply #9 on: May 03, 2015, 10:10:45 pm »
Once you do the mod you do need to re-adjust the steering settings for it to be correct.
04 CRF 450R----> My Beast
03 LTZ 400------> Wife's Boy Friend
90 LT 250R------> Done and Ripping
01 CR 125-------> Traded For the LT

Offline Rainman56

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Re: How to do Bump steer mod.
« Reply #10 on: May 03, 2015, 10:24:57 pm »
Definitely need to reset the toe in.
Can,t fix stupid.:)

 

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