sg or reg. shaft?

[bwesley]

what is the difference between the two? for example the xtm 24-7 comes as either sg or reg.

 

[HumboldtBlazer]

most likely porting.

 

[Akina'sMtx-2]

Those are the type of crank shaft. There are only 2 type, it's either Thread(standard) or SG(forgot the 2nd name for it). The SG are more common on higher end engines because they don't require a pilot shaft that a thread does. The SG is also a lot longer than the thread, give it more room to mout race clutch. Check your manual to see what type of Crank your car takes, you gotta know in order to figure out what type of crank engine you can buy.

 

[bwesley]

Thanks for the explination. I know mine is SG but I was wondering what the difference was.

 

[mrfatride]

what type of shaft does the tmaxx use???

 

[Rob D]

tmaxx uses a short threaded crank