It should be pretty easy. You can remove that lockring with a standard lockring tool and see what kind of a mess you've got going on inside.

Dear Scrod,

What is your favorite thread (besides this one of course) in the history of SSFG?

Recommend some tubes?


I have some Specialized 700x20/28 tubes and some Specialized 700x23 tires and I keep getting flats. I have Velox rim tape, I installed a thin tape and after flats my LBS installed new tubes with wider tape. Still getting pinched tubes.


Tomorrow I will grab the dremel and stone bit then smooth out the spoke holes in the DP18's

if your tape covers the holes then they cover the holes and dremeling wont help. You're probably not inflating your tires enough and running over some bad bumps/cracks/pot holes.

/not scrod

So I took out the tube to see where it was damaged. Correct, the new wider rim tape is doing good as the puncture is no where near the holes that were causing problems before. This tube has a hole by the base of the valve. Common problem or under inflated, bump etc etc etc?

http://img249.imageshack.us/img249/1926/imag0062h.jpg

I think hairnet needs his own thread.

That's a very common problem with DP18s. Make sure there are no burrs around the inside of the valve hole. It also may help to cover the valve hole with a piece of electrical tape and poke a hole just big enough for the valve to go through. If it won't stick, put it under the Velox tape.

Two more tubes down the drain ....... unridden btw.
http://img853.imageshack.us/img853/249/imag0065xu.jpg

http://img341.imageshack.us/img341/8411/imag0067u.jpg

I added a lil extra around the valve last night and these two that tore today where not around the valve ............... wtf is going on? They were pumped to about 100psi and left sitting next to me while I watched tv today. Two minutes later psssssshhhhhhh ...................
http://img39.imageshack.us/img39/4899/imag0068do.jpg

You're supposed to tape all the way around the rim.

Lol I know, thats just a lil something extra around the valve area.

Maybe, but you're confusing me. When you last installed the tubes and let them sit for two minutes, did you have rim tape around 100% of the rim or did you not? I ask because the marks you're pointing at line up PERFECTLY with the spoke holes around that little piece of rim tape that you put down.

You understand that it might look like a tiny little bubble on the tube, but that's because it shrunk back down to size. When the hole is there, it expands and fills up that entire cavity and eventually touches the spoke nipple, spoke, or gets shredded from the hole itself.

Assuming I'm not giving you enough credit (very likely!!) show us a photo with the rim tape completely installed. Maybe you're using something too thin or something....beats me!

Oops! I didn't realize this was the "Ask trevor_ash" thread. Don't mind me.

What Scrod says: open it up, clean it out. Chances are a pitiful few $$$ investment for new bearings is all it needs.

But what frame is that? Looks like fillet-brazed steel.

;-P

I can't help it. So much gets asked here and in Carleton's thread instead of ending up as separate threads

Can you imagine if every question asked here and in Carleton's thread were an individual topic? What a total **** show that would be.

Well it seems most questions are asked as a quick way out of doing 2 second research (as if a lot of threads are not), but some good stuff comes up.

And no, I dont want a thread. I have taken up the responsibility of Sunday head mechanic at the co-op, that's my own thread IRL

I do feel that ol' Carleton and I are doing this site a service by keeping a lot of these questions contained within two threads.

/tootingmyownhorn

I agree

http://img508.imageshack.us/img508/8770/imag0071sz.jpg

Full rim tape was always used. The extra piece around the valve area was put on yesterday when I changed the tube torn by the valve.

The two that popped today have me puzzled about the velox tape being too thin as they popped with the rim fully taped up.
[img]

Hey Scrod, while we're on the topic of rim tape, how long does the plastic stuff that came on the bike last? Or is it a "use it until it breaks" kinda thing?

For me, about 6 years. YMMV.

I see the problem! It's that freewheel :)

Seriously, I've no clue. Good thing I'm not Scrod.

My plastic strips have lasted me along time. Some manufacturers say you're supposed to change it every time you change tires (i.e. the tire is worn out), but that seems suspect to me.

/notscrod

I don't really know, as I've always used cloth rim tape until recently giving Veloplugs a try.

IME, veloplugs dont work well with non velocity rims

work great on my areo and areaheads

There are two different sizes. The red Veloplugs may not work on some other rims and rims with eyelets. However, the yellow ones will.

/out knowledged

How do I convince my dean to let us have facial hair? (serious question BTW)

I have no answer for that. Personally, I would never put myself in a situation where something as simple as the natural right to grow facial hair isn't "allowed".

Are you an employee or student?