K2 / Proflex Riders Group

General => Tech Forum => Topic started by: Willie_B on September 10, 2009, 10:04:40 am

Title: What bolt for Ti spindle
Post by: Willie_B on September 10, 2009, 10:04:40 am

I am using a Ti bottom bracket in the OzM I am building. Is it ok to use aluminum bolts for the crankarms or should I use Ti? Trying hard not to be a weight weenie but it's hard not to when I am just buying the parts for the first time and not upgrading them.

Title: Re: What bolt for Ti spindle
Post by: orange on September 10, 2009, 10:44:37 am

I've had bad experiences with alloy crank bolts (like SRP etc) - they just undo themselves :( Even tightening the cranks on with steel ones, undoing the steel bolts and putting on alloy ones for show still doesn't work...

Title: Re: What bolt for Ti spindle
Post by: shovelon on September 10, 2009, 02:16:28 pm

Ditto. The last thing you need is to strip or break a ti screw in the BB.

I use ti bolts in my bikes, but seat the cranks with a standard set of steel bolts also.

You can find alot of Ritchey Ti BB bolts on Fleabay. Just remember to use copper grease or anti-sieze in a ti BB. Blue loctite is good for steel BB.

Terry

Title: Re: What bolt for Ti spindle
Post by: Thunderchild on September 10, 2009, 10:19:02 pm

(Anti seize comment)
Slather on the anti seize.  I had to remove aluminum cups from from an aluminum frame for a Ti Action Tec BB.  The original owner had not put any anti seize on the cups.  After much work and PB Blaster, I removed one cup.  I destroyed the wrench notches removing it.  The second cup would not budge.  I had to carefully cut and chisel out the cup.  I used a dremel tool with cut off wheel to cut slots in the cup.  Got out without damageing the BB threads. 

Thunderchild