What Have You Fettled Today?

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Ming the Merciless

There is no mercy
Location
Inside my skull
Tightened up the right chain stay bolt of rear mudguard after noting it rattling at end of today’s ride.
 

sevenfourate

Devotee of OCD
Lube and loctite on the same threads, interesting approach. Tell me more.

Lube at the bottom / thread entry end of the bolt, loctite just under / as close to the head as possible

If you try the opposite approach - the thread locked in; and so far from the head, can cause excess torque on the bolt (And
possible snapping) before the loctite 'lets go' when undoing......
 
I am old enough to remember Grandstand and that they had a teleprinter!

Unfortunately, I am also old enough to have developed a poor memory and forgotten Grandstand and its teleprinter... :whistle:

But thanks for reminding me! :okay:

And Des Lynham presenting in the studio on Saturdays. Used to be Steve Rider on a Sunday afternoon.
 

Ming the Merciless

There is no mercy
Location
Inside my skull
Lube at the bottom / thread entry end of the bolt, loctite just under / as close to the head as possible

If you try the opposite approach - the thread locked in; and so far from the head, can cause excess torque on the bolt (And
possible snapping) before the loctite 'lets go' when undoing......

Interesting but either way the bolt has been fine for 3 1/4 years and approx 37,000 miles in all weathers with existing approach.
 

C R

Guru
Location
Worcester
Lube at the bottom / thread entry end of the bolt, loctite just under / as close to the head as possible

If you try the opposite approach - the thread locked in; and so far from the head, can cause excess torque on the bolt (And
possible snapping) before the loctite 'lets go' when undoing......

FWIW, any bolts that come with thread lock pre-applied have it along most of the thread, and when I was working in manufacturing, assembly instructions required either thread lock or grease, I can't remember ever seeing both used in the same fastener.
 

ColinJ

Puzzle game procrastinator!
FWIW, any bolts that come with thread lock pre-applied have it along most of the thread, and when I was working in manufacturing, assembly instructions required either thread lock or grease, I can't remember ever seeing both used in the same fastener.
Isn't it just a case of choosing the right type? One that it is firm but not super-hard to break?

Answering my own question - Yes! I just searched and found this...

  • Red: High strength, permanent adhesion
    • Select for high vibration applications where the components don’t need to be disassembled in the future.
  • Green: High strength wicking, permanent adhesion
    • Select for high vibration applications for preassembled fasteners that don’t need to be disassembled in the future.
  • Blue: Medium strength, removable with torque
    • Select to ensure components don’t come loose in the application and there is a possibility of disassembling the components in the future.
  • Purple: Low strength, easily removable
    • Select for non-crucial applications and if disassemble of the components in the future is a known possibility.
I used the blue type on two jockey wheel bolts recently, having had a show-stopping jockey wheel loss on one ride in the past!
 
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Reactions: C R

C R

Guru
Location
Worcester
Isn't it just a case of choosing the right type? One that it is firm but not super-hard to break?

Answering my own question - Yes! I just searched and found this...

  • Red: High strength, permanent adhesion
    • Select for high vibration applications where the components don’t need to be disassembled in the future.
  • Green: High strength wicking, permanent adhesion
    • Select for high vibration applications for preassembled fasteners that don’t need to be disassembled in the future.
  • Blue: Medium strength, removable with torque
    • Select to ensure components don’t come loose in the application and there is a possibility of disassembling the components in the future.
  • Purple: Low strength, easily removable
    • Select for non-crucial applications and if disassemble of the components in the future is a known possibility.
I used the blue type on two jockey wheel bolts recently, having had a show-stopping jockey wheel loss on one ride in the past!

I think all shimano stuff has the blue threadlock.
 

november4

Senior Member
I am about to change cassette, front & rear dérailleurs from 105 to ultegra........anything to be forewarned about, or a simple drop in then index?

I am keeping 105 shifters (waiting on deal) and chain (still got some life)
 

Jameshow

Veteran
Not fettled but annoying I have a new to me conti ultra sport tyre which has a definite hoop to it!!
It's really annoying l. It's not the rim deffo the tyre. Anyone else had this?!
 

Jameshow

Veteran
I am about to change cassette, front & rear dérailleurs from 105 to ultegra........anything to be forewarned about, or a simple drop in then index?

I am keeping 105 shifters (waiting on deal) and chain (still got some life)

Are they same pull ratio?

What model numbers???
 
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