Stripped threads

[nickr]

I’ve recently purchase a Planet X London Road. While fitting a rack and mudguards I’ve stripped threads in two of the very low quality mounting points. These appear to be made of very soft aluminum, familiar to anyone who owned a 1970’s Japanese motorbike.


I am not an idiot, I've fitted racks and mudguards to my last two bikes with no problems.


Is there any way to replace these? Planet X can offer no solution.

 

[Tim Hall]

If they're holes where you can see both sides, you could drill out and fit a nut and bolt.

 

[gbb]

Or try longer screws if this is an option...you may pick up some good thread deeper in.

 

[Deleted member 26715]

Or find somebody with either rivnuts or helicoils

 

[NeilnrLincoln]

Helicoil type thread repair kits should do the job, I've used them to repair a couple of rack mount threads on an alloy Trek frame. They come with the necessary drill etc. I presume it's M5.
The repair will be invisible & stronger than the original threads.

 

[Smokin Joe]

Self tapping screws would be another option.

 

[Profpointy]

Self tapping screws would be another option.

they're more for sheet metal I thought

 

[Yellow Saddle]

Or find somebody with either rivnuts or helicoils

Stop replying. ^^^^^^ This is the only correct answer.


Edit: I've changed my mind. I see the damage is on the carrier, not the bike. Drill the bastard.

 

[Dogtrousers]

Stop replying. ^^^^^^ This is the only correct answer.

Duck tape.

My dad had a set of helicoils (or similar) in his garage that he'd acquired somewhere or other. I always wanted an excuse to use them but it never cropped up.

 

[nickr]

Helicoil type thread repair kits should do the job, I've used them to repair a couple of rack mount threads on an alloy Trek frame. They come with the necessary drill etc. I presume it's M5.
The repair will be invisible & stronger than the original threads.

http://www.ebay.co.uk/itm/131-Piece...d=100338&rk=1&rkt=28&mehot=pp&sd=191722028399

Thanks for your help guys - really annoyed at having to do this - its put me right off the bike.

 

[Profpointy]

http://www.ebay.co.uk/itm/131-Piece-Thread-Repair-Kit-Helicoil-Type-M5-M6-M8-M10-M12-Metal-Case-Mechanical/272330356220?_trksid=p2141725.c100338.m3726&_trkparms=aid=222007&algo=SIC.MBE&ao=1&asc=20150313114020&meid=345939b6e6414f4aae85a06b820b8ed8&pid=100338&rk=1&rkt=28&mehot=pp&sd=191722028399

Thanks for your help guys - really annoyed at having to do this - its put me right off the bike.

I'd do the nut and bolt trick drilling iut the hole a smidge. And I do have a set of helicoils too,but don't think I'd bother here

 

[Deleted member 26715]

I'd do the nut and bolt trick drilling iut the hole a smidge. And I do have a set of helicoils too,but don't think I'd bother here

I have to say although I have both rivnuts & hellicoils I'd do the same

 

[nickr]

Can't do the nut and bolt trick - its the fastening point at the top of the seat stay, and having looked at it, I dont think there is enough metal to use helicoils either.

 

[Yellow Saddle]

Can't do the nut and bolt trick - its the fastening point at the top of the seat stay, and having looked at it, I dont think there is enough metal to use helicoils either.

Photos will solve the mystery.

 

[Profpointy]

Photos will solve the mystery.

I suppose p-clips are your alternative as they would be if no threaded inserts in the first place