Replacing mech limit screws with something more colourful?

[Fatal Swan]

Re: Replacing mech limit screws with something more colourfu

What size are we talking about for those limit screws again? And I assume the cabel clamp bolt is an M6?

Limit screws are M4, can't remember the thread pitch for certain but it's the standard one for M4 (0.7 rings a bell). For the limit screws you may need a slightly longer length than the original bolts since the larger head of the allen bolts might mean they won't screw down as far as the standard screws do.

The cable bolts and the front mech clamp bolts are M5 (M6 is brake boss size). Probably worth confirming with the Shimano exploded diagram for your mech though, if it's Shimano.

 

[02gf74]

Re: Replacing mech limit screws with something more colourfu

Limit screws are M4, can't remember the thread pitch for certain but it's the standard one for M4 (0.7 rings a bell).

yep 0.7 mm - came up when I googled M4 Ti grub screws - so standard M4.


The cable bolts and the front mech clamp bolts are M5 (M6 is brake boss size). Probably worth confirming with the Shimano exploded diagram for your mech though, if it's Shimano.

hmmm, Shimano XTR are M6 since I recall using a 5 mm allen key recently but SRAM are M5 - use 4mm allen key.

 

[Fatal Swan]

Re: Replacing mech limit screws with something more colourfu

The cable bolts and the front mech clamp bolts are M5 (M6 is brake boss size). Probably worth confirming with the Shimano exploded diagram for your mech though, if it's Shimano.

hmmm, Shimano XTR are M6 since I recall using a 5 mm allen key recently but SRAM are M5 - use 4mm allen key.

Are you sure? Maybe it depends on the model then, because the M960 front and rear mechs are definitely M5 for the cable bolts, and the clamp bolt on the front mech (and they seem to be the same size as every other Shimano mech I've had):

http://techdocs.shimano.com/media/techd ... 608842.pdf

http://techdocs.shimano.com/media/techd ... 609159.pdf

Bolts of the same size (Mx) don't always take the same allen key fitting: the Shimano M5 bolts I removed take a larger allen key size than the alloy M5 bolts I replaced them with.

 

[Fatal Swan]

Re: Replacing mech limit screws with something more colourfu

XTR front mech now finished too.

 

[jimo746]

Re: Replacing mech limit screws with something more colourfu

XTR front mech now finished too.

very

 

[Rampage]

Re: Replacing mech limit screws with something more colourfu

Aluminium is fine for this. It may slightly wear where it rubs against the cage stop, over a long period of time.

 

[02gf74]

Re: Replacing mech limit screws with something more colourfu

^^^ one thing I've not done is use alloy for the cage clamps - let me know if you get any problems - should the bolt give way, it could result in expense and frame damage hence why I have stuck with Ti.

 

[jimo746]

Re: Replacing mech limit screws with something more colourfu

Thanks for starting this thread, quite informative, and I've now got a load of bolts on their way to me that I never knew I needed before :facepalm: