Those little mounting lugs......

[Brandane]

I don't know the correct name for them, but I am referring to those mounting lugs for bottles, mudguards, racks etc.. The ones that you screw the allen headed bolts into!

Ham-fisted idiot that I am; I have managed to strip the threads on one of them on my Tricross. Quite a vital one, as it supports the top of the rack and I intend to use the bike for touring.

It looks as if they can be drilled out of the frame and replaced. So question 1, is that the case? 2. What do I ask for when trying to find replacement ones? and 3. How do you fit the new ones?

Thanks for any help with this!

 

[snorri]

It looks as if they can be drilled out of the frame and replaced. So question 1, is that the case? 2. What do I ask for when trying to find replacement ones? and 3. How do you fit the new ones?

Before considering replacing the part, you could perhaps rethread the hole by screwing in a tap of the correct size. Alternatively drill out the hole and re thread it with a larger size of tap, but this would mean having to use a larger screw to attach your component. If you have not used taps before, I would suggest learning first on some scrap metal.
Probably the best advice would be to consult a professional metalworker.

 

[rualexander]

If you can still get a bolt to go through the fitting you can just secure it with a nylock nut on the other end. I've done this before on my old touring frame when the threads had rusted away.

 

[e-rider]

a mate of mine did the same with his specialized with almost no excessive force at all.

a frame builder such as ARGOS in Bristol will have it out and a new one in within minutes. you could really mess it up doing it yourself!

Alternatively, attach a P-Clip on this side and don't even bother trying to use it. My bike doesn't even have these mounts so I use P-Clips both sides. Strangely, it does have mounts on the dropouts though (probably meant just for mudguards)

 

[e-rider]

If you can still get a bolt to go through the fitting you can just secure it with a nylock nut on the other end. I've done this before on my old touring frame when the threads had rusted away.

I think the design is a little different to this.

 

[TheDoctor]

If it's the one at the top that's knackered, there's a couple of easy options.
Just use the remaining one. I wouldn't recommend this for heavy expedition touring or camping, but for lightweight stuff it should be fine. I've done tours like this.
Get a seat clamp with rack mounting points - like this one.

 

[jackthelad]

Brandane take it too the bike shop they have tools for sorting this,happens regular on specialized bikes once sorted replace with new screw with loctite,I believe it is a compressed fitting,you are talking washers at the lbs to have it done or nothing at all

jackthelad

 

[Brandane]

Thanks to all for the usual good advice. I think I will go with the "take it to the bike shop" option and get it fixed properly!

 

[david1701]

bike shop, or a specialised 'concept store' if theres one closeish (I have one about 50 miles away)

 

[Zoiders]

The actual thing you have stripped is called a "Riv-nut", to fix it you will havve to drill it out and use a riv-nut gun to put a new one in.

http://www.specializ...001&scname=Road

It's simply a hole drilled in the tube with a rivet placed inside, this rivet is hollow and contains a thread, I hate to say this but you may find a Specialized concept store might not have the fitting tool for riv-nuts or feel competent to do it in store, I bet they will try and charge you a wedge of cash and they will want to send it away via post for several weeks.

On the other hand if you have a frame builder near by they will be competent to do it in the same day.

 

[HLaB]

When my Kinesis was fairly new (I'm guessing only a few hundred miles) I looked down on a ride to see my bottle swinging about a bit. Then on further inspection I noticed that the shop had managed to strip the threads (not very good on a month old bike) I was going to try some of that thread lock stuff but then I decided I was just better taking it back to them. After a week I got it back I think they just retapered the hole for a larger bolt and touch wood in the 5,500 miles since I've had no problems. I guess if I tried to sort it my self I would have had the same problem ever few months.