Swingarm Extension kit HELP

[FireMedic]

So I have a 2007 Busa with full bricks alien head and PC3. I bought it with 1500 miles on it and the old man original owner didn't realize what he was getting into. Needless to say there is a KMC extension set and chain with rear braided line installed on the bike. Bike runs perfect and everything is installed and adjusted correctly. My question: is the KMC extension set safe for normal street riding or should I just buy an extended swingarm? Also, I'm curious to know if anyone has any idea how to tell exactly how much it is stretched. I do not have factory swingarm parts I know I'm asking a lot but if I wanted to go back factory where would I find the parts and what are they called? I know I'd need a new chain. Just trying to understand this adjustable kit and how to adjust it?
Any help would be appreciated.

 

[GoldenChild]

I don't know of particular brand, but they are made like most cheap sets out there. They will serve their purpose for street riding I'm sure. I keep lots of parts in stock if you ever want to go back to stock length. You can measure stretch by going axle center of fro t wheel to axle center of rear wheel and subtract 58".

 

[Quiksilver]

From what I've been told (over and over) a extended arm is the way to go. I know plenty of people with pipes and power commanders on their bikes an have had zero issues.

 

[black diamond busa]

Take a close up picture of the extensions

 

[bikerboy2182]

those extensions ive had on two busas. they are plenty strong for street or light track use. BUT get rid of the KMC chain. mine streched at least once a week untill it finally snapped destrying the tail and engine cases. my gen 2 has the same extensions but i have a $200 chain that has yet to strech. any questions PM me please. dont keep that chain

 

[FireMedic]

Great feedback thank you all. Will definitely hit you up if I decide do go back stock. Ill probably get parts anyway just to have. As far as the KMC chain it'll be replaced with a better quality one.

 

[jones2507]

I know plenty of guys with those extensions including me and haven't had a problem I wouldn't run crazy hp with them on and for sure get rid of that chain get a better one it pays for itself in the long run