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Trek 950 650b trail/rando build

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Trek 950 650b trail/rando build

Old 03-07-15, 11:44 PM
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Trek 950 650b trail/rando build

Like most builds of this type, this one started out on a serious budget. But then I sold a bike and said screw it. Most of the new parts ended up being pretty affordable anyway, and I had some stuff ready in the bins. The total is still under $500 which was the goal.

I bought this as a frame set from oddjob2, who shipped via parcel post from the east. Somehow the box exploded in-transit and they expedited it... and it was on my doorstep not 3 days later looking like this:



Being a True Temper Trek, it was of course totally unharmed.



Except for the superficial stuff, which I took care of. Lots and lots of elbow grease, as I didn't want to use anything toxic. When I got the frame the paint was already sanded down in parts, with light rust starting in others. Removing the headset cups revealed more rust, so I decided to give it a thorough cleaning and start fresh. The plan is to get it powder coated eventually, if I end up liking the frame. I didn't want to invest in a PC only to wind up not liking the frame or it not fitting right as this is a wheel size conversion and an experiment. For now it's getting shellac'd and decal'd (if they ever arrive from VeloCals) so it doesn't look so bare. I have a feeling this is the type of steel that will do well uncoated, as there have been no signs of rust starting on it again, even though it rained for a couple of days while I was in the process of removing the paint.

Before, with non-toxic (not quite useless) Ready Strip:



After:






As of now it's been frame-saver'd and is ready for shellac and parts. It should be built up by the middle of next week. Thanks to everyone that has helped me gather parts on here and Paceline. It's gonna be good.

---

Update 3/12/15:

Build is done. Here's a run down of the parts:


F/F: Trek 950
HS: Tange Falcon Sealed
Stem: Nitto Dirt Drop
Bars: Soma Hwy One
Brake Levers: TRP RRL
Shifters: DA 10-sp bar ends
FD: Sram Rival
RD: XTR 9-sp
Crankset: TA Cyclotouriste 46-32
BB: Shimano UN-55
Chain: KMC 9-sp
Cassette: Sram 970 11-34
Brakes: Tektro CR-720
Wheels: Velocity Synergy 650b to Velocity ATB hubs
Tires: Surly Knard 650b x 41mm
Rack: Surly
Saddle: Brooks Pro
Seatpost: Kalloy UNO + Hite Rite courtesy of @mparker326
Pedals: Time ATAC / MKS Lambda


Last edited by whatwolf; 03-12-15 at 09:49 PM.
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Old 03-08-15, 12:37 AM
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Nice bike. I've got questions. Are you going to shellac the entire bike to keep it from rusting or ? What kind of brakes are you using with those canti posts that will allow for 650b? I'm itching to do a 650b conversion, and although I have a "victim" bike I'm interested in your build.
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Old 03-08-15, 12:57 AM
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Originally Posted by Velocivixen
Nice bike. I've got questions. Are you going to shellac the entire bike to keep it from rusting or ? What kind of brakes are you using with those canti posts that will allow for 650b? I'm itching to do a 650b conversion, and although I have a "victim" bike I'm interested in your build.
No, the shellac will not keep it from rusting eventually or if exposed to moisture but it'll be better than bare steel if I'm caught out in the rain or something. I don't plan to let the frame rust - it's just an experiment and I will keep it inside when not in use and reapply as necessary.

Tektro cr720s allow for the conversion from 559 to 584 on this frame.
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Old 03-08-15, 01:03 AM
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Here is an alternate method for the brake pivots: https://www.bikeforums.net/classic-vi...onversion.html
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Old 03-08-15, 01:18 AM
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Originally Posted by nfmisso
Here is an alternate method for the brake pivots: https://www.bikeforums.net/classic-vi...onversion.html
Yes but there's no need to modify the posts or use an adaptor when Tektro cr720s will work as they are. All I would need to do if I decided to go back to 26" wheels is move the pads down a bit.
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Old 03-08-15, 02:11 AM
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So when are you going to build it up? Can't wait to see. Also how did you get all the paint off? Sounds like you used chemical. Did you use something behind that?
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Old 03-08-15, 02:41 AM
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Originally Posted by Velocivixen
So when are you going to build it up? Can't wait to see. Also how did you get all the paint off? Sounds like you used chemical. Did you use something behind that?
Not sure what you mean. As I wrote, I used Ready Strip "safe" paint stripper to loosen up the paint and then did the rest by hand: I used wire cup brushes on a variety of power tools... angle grinder > drill > dremel. Some hand sanding too. The most time-consuming were the details at the end. But it's done and I now know every millimeter of this bike intimately. Maybe normally I wouldn't choose to do it this way but I'm waiting for my new job to start and have a month off and plenty of time to do this sort of dumb stuff and go on rides.

Then I applied frame saver inside all the tubes, let that dry, and afterward I went back over everything with a wire cup brush on my drill to give it a nice shine and even out the sanding/tool marks. Then cleaned with acetone and prepped for paint. Tomorrow I'll brush on the shellac and leave it in the sun while I go ride my bike.

Last edited by whatwolf; 03-08-15 at 02:47 AM.
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Old 03-08-15, 05:04 AM
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Love your builds.

Will be watching this one for sure.
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Old 03-08-15, 06:45 AM
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Looks great whatwolf. Never thought that frame would look so good! Maybe the awesome hickory flooring helps?

Looks like your dog is curious too at the box!

Last edited by oddjob2; 03-08-15 at 06:51 AM.
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Old 03-08-15, 08:55 AM
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Originally Posted by wrk101
One of my keepers that I really miss is my 1992 Trek 950. It was very versatile, a great bike. In the end, it was just a tad too small, so I let it go.
I had a purple 950, 1992 or 1993 I think, that I wanted to keep but mine was a tad too big, so I let it go I saw one my size pop up on CL over the winter but the price wasn't awesome and I really couldn't justify another vintage mountian bike.

Looking forward to this build! Be careful when you go to repaint it with the shellac coating. I had a frame that I stripped to bare metal and rode for a year or two with a clear urethane coating before deciding it was a keeper. When I went to finally paint it I should have done a light sandblast but instead decided to strip the urethane with paint stripper. It is very difficult to tell when you have fully removed the clear coating (because it's clear ) and the etch primer did not stick where there was residue. I did not realize there was adhesion problems with the primer until after I had the color coat on. Now I'm afraid after all that work that the paint will fail.

Anyway, if you're going to have it powder coated make sure they do a good job removing the shellac.
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Old 03-08-15, 09:07 AM
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What year is that 950? I have a 89 and will be watching this build... I need to get that 950 off the stand soon!
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Old 03-08-15, 09:08 AM
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My identical 950 was my first mountain bike, bought secondhand back in the early 90's. I put thousands of singletrack miles on that bike and loved it. For mass-produced, it is a really quality frame. Good luck with the build. FWIW, I vote for the original Intense Blue if you repaint. That is an iconic color for me.
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Old 03-08-15, 10:10 AM
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Very cool. I look forward to seeing it built up.
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Old 03-08-15, 11:03 AM
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Originally Posted by whatwolf
No, the shellac will not keep it from rusting eventually or if exposed to moisture but it'll be better than bare steel if I'm caught out in the rain or something. I don't plan to let the frame rust - it's just an experiment and I will keep it inside when not in use and reapply as necessary.
How about a clear powder coat?

I loved the look of those Rivendell frames that they did the clear finish on the bare frame.


EDIT:
Reading a bit into it, it looks like the frame will rust if there's not a primer- so a clear finish won't "seal."
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Old 03-08-15, 11:32 AM
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Originally Posted by oddjob2
1993
Really? For some reason I thought it was '89 but I dont know where I got that. I'll look up the serial no.

Edit: All research points to '89.

Last edited by whatwolf; 03-08-15 at 01:26 PM.
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Old 03-08-15, 11:44 AM
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Originally Posted by wrk101
And since you used acetone, here's an MSDS for that one:

https://www.sciencelab.com/msds.php?msdsId=9927062

Not too bad, except this: "The substance is toxic to central nervous system (CNS). The substance may be toxic to kidneys, the reproductive system, liver, skin. Repeated or prolonged exposure to the substance can produce target organs damage."

In the end, its pretty hard to avoid hazardous chemicals. How you handle them and in what concentration can be very important.
Thanks for the research, I'm aware of those warnings. But since you bring this up, I was more concerned with disposal methods (acetone evaporates, was my thinking) than deleterious effects on my health. I've used toxic paint strippers before and would again if the situation truly warranted it but to be honest I can't imagine when that would be. Just my opinion. It was awfully tempting though.
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Old 03-08-15, 01:28 PM
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Originally Posted by gomango
Love your builds.

Will be watching this one for sure.
Thanks Grady! How's the Salsa coming along?
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Old 03-08-15, 01:59 PM
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Some inspriation

I've been looking for a 930 to 970 every since I saw this

:Benedict's Trek 970 650b Shred Sled | The Radavist

Cheers,
Chris
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Old 03-08-15, 03:07 PM
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Originally Posted by Chris W.
I've been looking for a 930 to 970 every since I saw this

:Benedict's Trek 970 650b Shred Sled | The Radavist

Cheers,
Chris
Oh yeah, that guy's bikes are constantly on my mind. Definite source of inspiration there.

First coat of shellac is on and it's already very nice and glossy.
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Old 03-08-15, 05:47 PM
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Two coats:

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Old 03-08-15, 06:20 PM
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Originally Posted by whatwolf
Thanks for the research, I'm aware of those warnings. But since you bring this up, I was more concerned with disposal methods (acetone evaporates, was my thinking) than deleterious effects on my health. I've used toxic paint strippers before and would again if the situation truly warranted it but to be honest I can't imagine when that would be. Just my opinion. It was awfully tempting though.
Evaporation = goes into the air. It does not go away, its just emitted into the air in vapor form.
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Old 03-08-15, 06:55 PM
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Drops or flat bars?
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Old 03-08-15, 06:58 PM
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Originally Posted by wrk101
Evaporation = goes into the air.
And knowledge = power.

Originally Posted by Sir_Name
Drops or flat bars?
Drops or Albatross bars, going to try both and see.
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Old 03-08-15, 07:40 PM
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Why Shellac, it is not a durable metal finish, polyurethane would have been better.
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Old 03-08-15, 08:10 PM
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Originally Posted by bwilli88
Why Shellac, it is not a durable metal finish, polyurethane would have been better.
I wasn't going for durable, though -- I like that shellac is easy to remove completely. Plus it has a subtle yellow tone to it that makes it look like my frame was dipped in liquid golden sunshine and then polished. It brings out all the brass brazing.

I do regular maintenance on all my bikes and if it chips off a little then I'll just brush more on. I dunno, I'm just sharing an experiment. I'm not advocating a way of treating a bike frame. To my knowledge, no clear coat of any kind is enough to protect un-primed steel from rust.
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