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All things Derailure hangers.. 6:00am bike work and such.... Ti or Steel?

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All things Derailure hangers.. 6:00am bike work and such.... Ti or Steel?

Old 05-22-16, 08:29 AM
  #1  
scuzzo
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All things Derailure hangers.. 6:00am bike work and such.... Ti or Steel?

ok, so i got back after my Sat evening ride.. and my shifting felt kinda off,, it just bugged me... so.. once i got home.. i checked the rear der alignment, it seems a few degs off.. so perhaps if i tighten the hanger bolts abit.. see where this is going? yep, rounded out the hex bolt.. so.. now rear hanger is a bit off by a few degrees.. and the bolt is rounded out... and this really bugged me... so, i decided that i would just have the bike shop set it right.. but thats not me.. i have to monkey with stuff.. so i took a drill to it.. to drill out the offending bolt.. but it was not good... all i did was make things a bit more worse.. but it bugged me so at 6am i got up and went searching through my bits and found one that might work... and... yep.. got enough material off the bolt head that it just came free and i was able to save the hanger and the drop out... so... success... lesson learned... dont over tighen small hex bolts..

but here is the thing,... i can see that the Ti der hanger is out by a few degrees.. i dont thing it is enough to replace it with a new hanger... but can a slightly bent Ti hanger be realigned (cold set) if its just > 8 degrees off... or will the ti hanger have to much memory (spring) to accept a set (realignment)..



and... after all this crap..

i decided , hell with it.. order a new hanger from Litespeed any way... just to have on hand..

should i go with Ti... for the bling or weight savings...
or
so with good old steel, for the fact if the hanger takes a knock i am sure i can bend it back to true...


im leaning toward buying the steel one because of its ability to be realigned...
and just eat the 20gm of weight..

just a tip,, dont work on bikes when you are mad at the bike..
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Old 05-22-16, 09:28 AM
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Steel
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Old 05-22-16, 09:38 AM
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Stainless Steel will be bling enough , I'd think .. Once Your replaceable derailleur hanger comes in,

You still need it also to have the shop alignment tool Used .

to tweak it that last little bit to get the shifting synched front the lever clicks and rear in a plane dead parallel with the trued wheel rim.
IDK why Ti other than its part of the Frame itself. then it still has to be aligned for the indexed shifting functionality.




Thick Steel and friction shifting is much more adaptable and reliable and less fussy. but thats the frame in total ..

I have No Idea about the parts on Lightspeed frames most replaceable dropouts are aluminum, these days,

and there's hundreds of different ones.. and they need alignment after installation ..


Huntsville Alabama? I wouldn't work on Rockets, there, for that matter, either if I were Not Calm.

Last edited by fietsbob; 05-22-16 at 09:53 AM.
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Old 05-22-16, 10:28 AM
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Those little bolts on the derailleur hanger are usually only there to keep it from falling off when the wheel is out of the frame. They do nothing to help align the hanger. The clamping force from the wheel skewer holds the hanger tight against the dropout.
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Old 05-22-16, 11:05 AM
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Originally Posted by fietsbob View Post
Stainless Steel will be bling enough , I'd think .. Once Your replaceable derailleur hanger comes in,

You still need it also to have the shop alignment tool Used .

to tweak it that last little bit to get the shifting synched front the lever clicks and rear in a plane dead parallel with the trued wheel rim.
IDK why Ti other than its part of the Frame itself. then it still has to be aligned for the indexed shifting functionality.




Thick Steel and friction shifting is much more adaptable and reliable and less fussy. but thats the frame in total ..

I have No Idea about the parts on Lightspeed frames most replaceable dropouts are aluminum, these days,

and there's hundreds of different ones.. and they need alignment after installation ..


Huntsville Alabama? I wouldn't work on Rockets, there, for that matter, either if I were Not Calm.
na, it turned out ok, but it was bleak at the start.. i could have easy wrecked the DH.. , hell, i could and trashed the frame.. with all my mechanic skills,. im not even sure the dh is off set enough to worry with but i did take a straight edge to it and its off by 2mm or so.. perhaps 3 at most 4.. i wil take it to a shop so they can run the park tool on it.. then if they can cold set it that little amount i will let them have at it... but im still going with a steel hanger.. i think.. i know my schwinn have the der ram in to the spokes and the hanger bent to heck.. and they just brought it back true... no problem... dont know if Ti.. is as forgiving.
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Old 05-22-16, 11:27 AM
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WE Use the shop tool and get it within a few MM at the end of a 2,5 foot arm .. screwed into the derailleur bolt hole

with It's sliding reference indicator comparing a little over 270 degrees around the rear rim, edge .. IDK what tooling you use.


Titanium is in aircraft landing gear and Chopper rotor blade Hubs
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Old 05-22-16, 02:21 PM
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Ti is much more forgiving than aluminum, would not worry about bending it back, especially only a few degrees. It is not spring metal and will not spring back significantly
if done intelligently. Soft aluminum is used in the replaceable hanger because it is so malleable, ie, it bends long before the expensive frame does. They can be bent back
1-2x but unalloyed, unheat treated aluminum tends to crack easily when bent back and forth a few times. Frames made of aluminum are both alloyed and heat treated to
minimize this tendency, so they do not remember being bent and spring back to the as made configuration unless destructive forces are applied.

Steel derailler hanger? Makes little sense as the whole point of replaceability is the hanger fails, not the frame. Steel is too strong, for that matter Ti doesn't make
much more sense as a replaceable derailler hanger either.

Last edited by sch; 05-22-16 at 02:25 PM.
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