Alloy rotor fixing bolts - bad idea???

[Carbon_Kiwi]

just thinking of the $$$ - i'll probably go for titanium, but if there is any engineering types out there that could give me good reasons for or against the alloy thing, i'd really appreciate it  

[Simon]

Whats there to gain,lose a couple of gramms,and risk using bolts that may not be capable of dealing with some high stress shear loads,(unless the rotor is a spline fit),you also run a higher risk of rounding of the softer hex or torx heads when removing if they have corroded in or been loctited in,most or all disc's are supplied with stainless bolts and most manufactures are conscious of the weight factor but still supply s/s,I know there's a cost factor but even top end disc's systems tend to stick with s/s,I think I'd rather stick with the what the manufactures supply they know what there doing.Simon [smiley=nod.gif]  

[tmaybee]

This is a question for the <save some weight> forum on mtbr.com   there has probably already been a thread about this topic if you search for it.

Trevor

[Matno]

Seems to me like you'd save even more weight for probably about the same cost if you just replace your coil spring with a titanium one (assuming you have a coil shock!) I've never been able to see how people can justify spending ridiculous amounts of money on titanium bolts when the steel ones from then entire bike don't even add up to one little pedal...

[proflexGB]

There is also a problem with the heads of replacement bolts sticking up too far and catching the fork leg. The heads of the OEM bolts are very low (have a look at your hopes) so that they clear the fork leg. If you do replace them with ti ones then be careful about the depth of the head.

Also the hope ones are listed as 8mm long threads and that size is not available anywhere, you will have to get 10mm and cut them down if the threaded holes in the hub aren't deep enough.

hth Nige.

[tmaybee]

Check this out:

http://forums13.consumerreview.com/crforum?14@166.fhIiaDleZoy.3@.efdb052/2

http://userportal.iha.dk/~20033774/THE-MA~1/xtr_disc_setup.htm

Trevor