rear sprocket carrier cracks?

[Guest]

While lubing chain, I noticed what appear to
be horizontal cracks in a 3 inch section of
the carrier casting. I don't know if it is
fresh or if it was there when new. Dealer
called zuki, says its ok. Should I worry
about my hub breaking up at ahem, hiway speeds? Dealer checked new bike on floor,said
carrier looked smooth. Thanks ahead for replies. nick

 

[OB_c.dolan]

This subject has come up before. Need to look closer. to verify if actually cracked, or just casting flaws. It uses same carrier AS 98 ~ 99 GSXR 750. I have run the hell out of mine, (Busa) for almost a year, street and 1/4 mi. track. No problems.

 

[AQUADIOSMED]

Suzuki calls these "cosemtic-flaws", a casting problem ... they refuse to provide any data to verify ... as a metalurgist ... only that no one killed yet!
Dealer suggests getting a jewlers magnfied glass, bright light and "check it closely"
I removed hub, cleaned and examined, by eye only ... have not done the magnification exam yet.

 

[OB_VegasDude]

its ok, had mine checked by suzuki when i had my original rim and it was fine. Went out onto the floor to a brand new busa and it had the same thing with no miles on it. Your hub is ok.

 

[OB_Earl]

Yep, I agree with Vegas. I have a brand new (1 mile) blue busa in my den with the same cosmetic flaws. My 99 had the same. Hey Vegas e-mail me sometime. I changed jobs the first of year and have different e-mail address. Vicky and I are planning another trip to your fair city. edonald@premdor.com
I would like to ask your thoughs on something.