Damaged pedal pins

denis's mate

Just smacked off a couple of pedal pins on some Nukeprook Electrons (Edit, Protons) on some rocks.
Thinking I'll drill out and tap deeper as the threads are damaged.
The pins are only held in by approx 3 turns, which to me doesn't seem enough, so may do this on all pins.
Anyone done this?

Cyph3rs

Never heard of anyone doing this. But it seems like a lot of effort for such cheap pedals. I'd take this opportunity to upgrade the pedals personally.

Good luck though!

denis's mate

[url=http://www.bikeradar.com/forums/viewtopic.php?p=19684182#p19684182]Cyph3rs[/url] wrote:

Never heard of anyone doing this. But it seems like a lot of effort for such cheap pedals. I'd take this opportunity to upgrade the pedals personally.

Good luck though!

No effort. I'll just crack on then.

Cyph3rs

I suppose another concern is, these are the plastic pedals right? Drilling into them, and deeper might compromise the integrity of the pedal? Don't want them snapping on you.

denis's mate

[url=http://www.bikeradar.com/forums/viewtopic.php?p=19684435#p19684435]Cyph3rs[/url] wrote:

I suppose another concern is, these are the plastic pedals right? Drilling into them, and deeper might compromise the integrity of the pedal? Don't want them snapping on you.

I made an error in my original post. True, the Electrons are a plastic but I have Protons.
If they were Electrons I would not bother.
Found some info on the MBR forum about this topic and I'll be doing it over weekend.

buddy_club

Won't you lose grip as the pins will be further into the pedal therefore sticking out less? unless you plan to replace with longer pins

Cyph3rs

[url=http://www.bikeradar.com/forums/viewtopic.php?p=19684550#p19684550]denis's mate[/url] wrote:

[url=http://www.bikeradar.com/forums/viewtopic.php?p=19684435#p19684435]Cyph3rs[/url] wrote:

I suppose another concern is, these are the plastic pedals right? Drilling into them, and deeper might compromise the integrity of the pedal? Don't want them snapping on you.

I made an error in my original post. True, the Electrons are a plastic but I have Protons.
If they were Electrons I would not bother.
Found some info on the MBR forum about this topic and I'll be doing it over weekend.

Ah there we go then! Crack on!

denis's mate

[url=http://www.bikeradar.com/forums/viewtopic.php?p=19684647#p19684647]buddy_club[/url] wrote:

Won't you lose grip as the pins will be further into the pedal therefore sticking out less? unless you plan to replace with longer pins

Standard pins are 8mm. Will get longer. Only £1 or so for 10 stainless or high tensile.

http://www.ebay.co.uk/itm/M2-M3-M4-M5-M6-GRUB-SCREW-CUP-POINT-HIGH-TENSILE-14-9-SOCKET-SET-SCREW-ALLEN-/201388900461?var=&hash=item2ee3b6c06d

buddy_club

[url=http://www.bikeradar.com/forums/viewtopic.php?p=19684793#p19684793]denis's mate[/url] wrote:

[url=http://www.bikeradar.com/forums/viewtopic.php?p=19684647#p19684647]buddy_club[/url] wrote:

Won't you lose grip as the pins will be further into the pedal therefore sticking out less? unless you plan to replace with longer pins

Standard pins are 8mm. Will get longer. Only £1 or so for 10 stainless or high tensile.

http://www.ebay.co.uk/itm/M2-M3-M4-M5-M6-GRUB-SCREW-CUP-POINT-HIGH-TENSILE-14-9-SOCKET-SET-SCREW-ALLEN-/201388900461?var=&hash=item2ee3b6c06d

Nice one mate, post pics of the results would be interested in doing the same to my dmr as they have lost a few pins too

rockmonkeysc

Theres a good chance of ruining the existing thread as you drill them deeper so you will be no better off. I would leave the good ones as they are. It's quite normal engineering practice to only have 1 -1.5 X diameter for thread engagement, any more doesn't really increase strength of the connection.

denis's mate

[url=http://www.bikeradar.com/forums/viewtopic.php?p=19685143#p19685143]RockmonkeySC[/url] wrote:

Theres a good chance of ruining the existing thread as you drill them deeper so you will be no better off. I would leave the good ones as they are. It's quite normal engineering practice to only have 1 -1.5 X diameter for thread engagement, any more doesn't really increase strength of the connection.

True.
I was thinking of this so I'll only tap the damaged ones deeper. Nothing to loose on these. After all, I've lost plenty of pins but never damaged threads when doing so before.

denis's mate

Damaged thread.


Tapped all the way through.


Setscrew fitted.

Did this on a set of Wellgo MG-1 pedals off son's bike.
Straight forward enough.
If I did it again I would us a smaller drill instead of standard 3.3mm especially using a pistol drill ( I used a post drill).
The 8mm setscrews went all the way through with same amount protruding as standard. Locknut liquid used.
Some of the pins on the Wellgo would allow bolts to be be inserted from the back which would be better for removal at later date if needed.
Not much else I can add.

Edit. Still got the hang of inserting images! censored .

dgunthor

good work