Mountain Bike Reviews Forum banner
1 - 9 of 9 Posts

·
Registered
Joined
·
145 Posts
Discussion Starter · #1 ·
My ride is a 2004 Ironhorse SGS-Pro.

I want to upgrade my tired drive train.

Does anyone know BB (width and spindle length) will work for this frame? Someone told me that the sizing was a little different and can limit my choices.

Thanks
 

·
Registered
Joined
·
9 Posts
if it's a 2004 SGS DH pro it has a 100mm BB shell and yes you are rather limited for choice. your options are either ISIS (Nasty), HTII (RaceFace?) or Profile 3pcs.
each has a specific axle length to the application
 

·
Registered
Joined
·
2,186 Posts
100/145 good luck. They were a great idea, but way ahead of their time and the new standard seems to be the 83bb/150 hub combo. The SGS had a 165 hub. It couldn't even fit in the truing stand! Fahn
 

·
Registered
Joined
·
145 Posts
Discussion Starter · #6 ·
Thanks everyone for the replies. Helps me source a new BB for the rig. Time for a winter breakdown and overhaul. Still a great frame for the age.

And speaking of aged rigs, just picked up a 04 Demo 9 at a deal I could not pass up. Awesome condition. I'll be probing around for tips on that too.

thanks again.
 

·
Registered
Joined
·
9 Posts
really? every 100mm Platinum DH ISIS BB I ran developed play during the first ride.they span freely for years with the play gradually getting worse and worse - never actually failed as such.

Nuckaman - you must like your meaty frames, the SGS is by far the heaviest frame I've ever had, and I think a demo9 is even heavier.
 
1 - 9 of 9 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top