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Found what appears to be a Klein mountain bike frame at co-op but its rough, save it?

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Found what appears to be a Klein mountain bike frame at co-op but its rough, save it?

Old 03-16-14, 08:09 PM
  #1  
bobotech
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Found what appears to be a Klein mountain bike frame at co-op but its rough, save it?

At the co-op today, we were donated a really rough bike. The bike looked like it was owned by a poor homeless person. The front cheap suspension fork steerer was way too short so the owner slammed the stem as far down as it could go and tightened the hell out of it to keep the upper bearing and race sort of in place. The right pedal was held with with a nut, the threads on the crank were long gone. Lots of other problems. The bike was found in a dumpster and donated. The front derailleur was trashed. The rear derailleur was a very nice clean Deore LX which we saved. The rear wheel was junk.

Anyway, the frame looks like a Klein from the nineties. It is an all alloy frame and has the concealed cable paths. The frame is quite rough though, needs to be completely stripped and repainted.

The odd thing is that it has press in BB bearings instead of standard threaded cups. Can that BB be threaded like a standard threaded english BB?

I will post pictures soon.
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Old 03-17-14, 01:41 AM
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Looking forward to the pics.

Shame about the paint... being a Klein, it might be worth keeping the original paint no matter how ratty it is.
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Old 03-17-14, 02:01 AM
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Originally Posted by bobotech View Post
The odd thing is that it has press in BB bearings instead of standard threaded cups. Can that BB be threaded like a standard threaded english BB?
Unlikely.
AFAIK BB30 need a BB shell inner diameter of about 42 mm, which is a fair bit bigger than the regular threaded ones.

However, BB30 isn't crazy expensive. It can still be put back together at a reasonable cost.
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Old 03-17-14, 03:03 AM
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If it's not a threaded BB, I doubt it's BB30... that standard probably hasn't been around long enough.

Klein were known for their proprietary bits, as part of their 'fuselage' concept.
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Old 03-17-14, 06:46 AM
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Originally Posted by Kimmo View Post
If it's not a threaded BB, I doubt it's BB30... that standard probably hasn't been around long enough.

Klein were known for their proprietary bits, as part of their 'fuselage' concept.
I believe early Kleins (pre-Trek) had a proprietary bottom bracket design that is no longer readily available. Phil Wood does make some repair parts for them but I doubt your dumpster frame warrants the expense.
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Old 03-17-14, 07:12 AM
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Originally Posted by bobotech View Post

The odd thing is that it has press in BB bearings instead of standard threaded cups. Can that BB be threaded like a standard threaded english BB?
Klein did use a press-in BB so this is nothing out of the ordinary. Here is a tutorial (with pics) on how to remove the BB.
It does require special tools, so depending on how much they would charge, your LBS would probably be the place to bring it.

Replacing/servicing A Klein Bottom Bracket Unit (massive pics)

I'm not sure on the BB dimensions of the Klein, but if the dimensions permit, you can get a threadless BB to put back in there if need be.

Ian
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Old 03-17-14, 09:44 AM
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Originally Posted by Kimmo View Post
Looking forward to the pics.

Shame about the paint... being a Klein, it might be worth keeping the original paint no matter how ratty it is.
The paint is way too far gone, the frame was repainted anyway with a rattle can at one point.

I have the original BB parts.
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Old 03-17-14, 10:46 AM
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Like I said, the frame has been abused in its life. My plans would be to sand it all down, smooth out the dings and rough areas, paint it or if I can afford it, powder coat it, and then move all of my drop bar components from my drop bar Rockhopper over to this frame. I would probably use the Rockhopper fork for now until something better comes along.

I like the internal cable routing but at the same time it scares me with the problems that some have with internal cable routing installation.

I didn't measure it but I wonder if a 1 1/8" threadless steerer would fit?












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Old 03-17-14, 02:38 PM
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bobotech, The frame is worth saving. The issue is Klein's proprietary items with certain model years and models. While personally I'd hate to see the frame thrown into the recycle bin, it could become an economic quagmire.

Brad

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Old 03-17-14, 05:07 PM
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Originally Posted by bradtx View Post
bobotech, The frame is worth saving. The issue is Klein's proprietary items with certain model years and models. While personally I'd hate to see the frame thrown into the recycle bin, it could become an economic quagmire.

Brad
The only things that really make me worry are the BB and the fact that it needs to be repainted/powder coated. I like the idea of powder coating it, durable.

OH yeah and the internal cable routing, I hope that it isn't a nightmare on these bikes.

I imagine that after I sand off all the burrs and damaged spots, it will look very smooth.

I have all the parts otherwise to make it a complete bike. I would probably just use a nice chromoly fork off of a Rockhoppper or other decent mountain bike until I get a nicer one cheaply. I just wonder if it would fit a 1 1/8 steerer or not? I don't have the frame at home to check.
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Old 03-17-14, 05:51 PM
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Refinish it and display it...
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Old 03-18-14, 11:02 PM
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That looks like a nice Klein. I'd clean it and ride it like it is. (I'd probably sleep with it too.) I hope the gouges from the pedal are not too bad on the chainstays...
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Old 03-18-14, 11:42 PM
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Originally Posted by dwmckee View Post
That looks like a nice Klein. I'd clean it and ride it like it is. (I'd probably sleep with it too.) I hope the gouges from the pedal are not too bad on the chainstays...
Bad news. The gouges from the chainstay aren't all that bad. I was going to just smooth them out and buff them so that the whole frame was nice and smooth like it was when it was new and then paint it something simple like white which has a tendency to hide imperfections in the paint. Dark colors magnify imperfections. So I spent the afternoon searching for a decent lighter 26" front chomoly fork with canti posts. The best one we had weighed in at about 2 pounds 2 ounces. Not that light but the frame was only 4 pounds 6 ounces so the frameset would still be 6 pounds 8 ounces. Quite a bit lighter than my 9+ pound Rockhopper frame/fork.

So I brought the frame to my buddies at another bike shop here in town to get their opinion on it and they were all oohh and aahing over it until we noticed the gouge under the top tube. Literally looks like someone shot it with a .22 rifle.

Kind of puts a damper on having a nice alloy frame for a nice commuter. I guess I could sand the gouge down and fill it with bondo and then paint over it but not sure how well bondo will hold to an alloy frame.
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Old 03-19-14, 03:21 AM
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bobotech, By coincidence I have a similar dent on a project Cannondale SR's DT, looks like a .22 ricochet. I sanded it thoroughly, used a magnifying to inspect and after finding no cracks or tearing decided to proceed with it. I'm not going to cover it up.

Brad
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