So I've got Ti bolts to go in a Ti spindle. Do I still need to use Ti Prep on the threads?

How about aluminum cranks on the Ti spindle? Do I use it there?

Thanks in advance.

JT

question # 1 ; use the ti prep on threads and if i.d. of spindle is gritty or dirty , clean ... ( clean like your doing surgery ) that goes for the bolt too. question #2 ;a small amount on the spindle is a good idea too. some don't like the idea of lube on spindle in that if you tighten the arm down this allows the crank to compress further down ... not entirely true ... so lube it up !

[ September 23, 2004, 06:20 PM: Message edited by: undisclosed ]

small gears rule

use Ti-prep anywhere titanium touches any metal (including other titanium). i don't see much with BMX 'cuz Ti is not that common, but guys come into the shop all the time with road or MTB's where something has been completely ruined because they didn't use Ti-prep somewhere they should have.

Thanks for the advice, guys. Turns out, the bolts I bought off ebay don't even fit. I still plan on installing some if anyone knows where - for cheap - I can purchase them.

I'll still use my newly found knowledge when I install the crank arms.

JT

Good old Grease will also work in place of Ti-Prep.


What bolts were you looking for JT?

I can't recall the brand of bottom bracket off the top of my head, but I need crank bolts (the ones that compress the arm on the spindle). I'm not sure of the bolt's tpi, so maybe when I get home and list the brand, someone might know.

JT

Is TI prep any different than copper anti seize?

JT, you might also want to measure the bolt diameter at the threads and TPI. I have a link at home for a web site that sells TI hardware. They have a $100 minimum order. I was going to purchase some TI hardware for my new BREW. Maybe we can get enough people interested to meet the minimum order. TI hardware is difficult to find for some items. The place I found had almost every style bolt, thread, and length.

I would be interested in some TI bolts if you make a order.

Ti-prep and copper anti-sieze are the same. i think the "ti-prep" name is just the "bicycle industry" name for it.

grease can work if enough of it stays where it's supposed to be. trouble with it is you dont know for sure if it did once you've installed whatever the part is. ti-prep/anti sieze sticks to where you put it(and everything else that gets in its way!!!LOL).

[ September 24, 2004, 07:00 PM: Message edited by: mr coasterbrake ]

Put anti-seize on EVERYTHING!! I am a believer in lubing EVERY bolt during installation. I also think that crank arms should be put on the spindle clean and dry FWIW.

Personal preference after installing hundreds of roadbike Ti bottom brackets...dry spindle. If it's used clean the tapered flats with ScotchBrite until clean. I use anti-seize on seatposts, stem quills and bottom bracket cups but not on alloy or Ti bolts...for these I use Blue Loctite. It gives a more predictable torque value than glopping anti-seize all over everything. I strongly suggest the use of a torque wrench with Ti bolts or you'll be stripping them when you do finally get the correct ones...or worse...cracking the crank arm.