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Discussion Starter #1
Im going to install Rumble consept (storm) undertail on my bike. But the pictures on the guide where to cut the stock undertail are so crappy so its impossible to see where to cut. Have anybody done this and have pictures where to cut or any internettadress that might help? The giude on rumbles homepage are allso bad..
 

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After looking at the diagram, the instructions seem to follow what I did on during my Hotbodies undertail install.

What you want to do is make a square "U" cut on the fender to preserve the fender sides.
This is so you preserve the relay mount tabs and the fender mounting points.
Hotbodies has you zip-tie the relays to the sub-frame which is utterly stupid and lame.

Then I used scrap plastic from the fender to fashion support tabs for the undertail, rather than have it flop about at the rear.
This makes for very good fit with the rear cowl.

Here's where I attached the under tail support tabs to the fender.
 

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undertray

Im going to install Rumble consept (storm) undertail on my bike. But the pictures on the guide where to cut the stock undertail are so crappy so its impossible to see where to cut. Have anybody done this and have pictures where to cut or any internettadress that might help? The giude on rumbles homepage are allso bad..
..Yup dat true mate...the guide also not stated clearly...
 

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..Yup dat true mate...the guide also not stated clearly...
That's why, after reading both Hotbodies and Rumble install guides, I decided to go my own way.
Although Rumble's guide seems to follow what I did (or vice versa).

Hotbodies install routine is stupid where they have you hack off half your fender and zip-tie the relays to the subframe.
That doesn't leave any support for the rear of the undertail, so it tends to flop up and down at the rear portion.
 

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That's why, after reading both Hotbodies and Rumble install guides, I decided to go my own way.
Although Rumble's guide seems to follow what I did (or vice versa).

Hotbodies install routine is stupid where they have you hack off half your fender and zip-tie the relays to the subframe.
That doesn't leave any support for the rear of the undertail, so it tends to flop up and down at the rear portion.

My mechanic have to cut half of rear tail..then when rode it flip & flop until my tail light came off...
 

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Bump...

Great information here. I just finished cutting away my fender for the mod...these pictures helped out huge. A couple small changes because of the minor difference between the SP1 and SP2....but nothing note worthy...

I'm just wondering how the portion of the new under-tail closest to the rear shock is secured....I'm hoping it's a little more clear when I start putting the bike back together, but in pieces I don't see it yet...any suggestions or photos for this part.

Sub sent me a shot of how he secured his PCIII after the mod, I'll do something similar...now if I knew how to copy paste his photos...
 

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Bump...

Great information here. I just finished cutting away my fender for the mod...these pictures helped out huge. A couple small changes because of the minor difference between the SP1 and SP2....but nothing note worthy...

I'm just wondering how the portion of the new under-tail closest to the rear shock is secured....I'm hoping it's a little more clear when I start putting the bike back together, but in pieces I don't see it yet...any suggestions or photos for this part.

Sub sent me a shot of how he secured his PCIII after the mod, I'll do something similar...now if I knew how to copy paste his photos...
Ask and you receive.
Here's how I secured the front and rear of the undertail to the fender.
Now that I've had time to ponder it a bit more, instead of a bolt and lock-nut, you could instead use an automotive plastic clip similar to the ones used on your biles' bodywork, but longer.
Then it will be more easily removable.
I may change over to this method myself.

Front mount


Rear mount


As for the Power Commander mount, on my SP2 this is how I mounted mine.
The USB port or serial port is facing the rear for easy access to dyno the bike, or make changes.
 
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