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Last of the lugged Trek MTBs - 930 project

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Last of the lugged Trek MTBs - 930 project

Old 06-16-17, 02:09 PM
  #76  
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Originally Posted by 9volt
Recently picked up your bike's twin in the alternate 93 color. I'm planning to use this thread as a blueprint for a conversion to drops. Thanks for all the info. The reach really is obnoxious and it's good to know that Sunlite stem works out. It looks good on yours.



That color is amazing! Pretty minty bike too. Please post pics of progress.
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Old 06-17-17, 08:14 AM
  #77  
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A Trek 930 is the only bike I've ever sold. I paid $25 and converted it to a single speed. The Imron paint was nearly flawless. A guy offered me $300 for it and I took it.
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Old 06-17-17, 09:03 AM
  #78  
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I regret not picking up a perfect condition Trek 990 Singletrack at a garage sale for $50. But I did grab the '83 Trek 620 next to it for the same price. Perhaps I felt bad about hogging all the nice bikes.
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Old 06-18-17, 11:02 AM
  #79  
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Originally Posted by Chr0m0ly
Gah! I JUST missed out on a '92 Trek 950 in minty shape and a the largest size, 21". It was going to be a drop bar blaster for these construction roads!

I've got a Marin Bear Mountain in my correct for off roading size, 17". I'd need a larger size for a road bike conversion, right?
Typically yes, but not four inches larger. Lots of variation in TT length. I've seen some relatively short TT in the early 1980s. By the late 1980s they tended to get longer and longer.
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Old 06-20-17, 08:21 PM
  #80  
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Been working on the Bear Valley, it's going to be NICE.



https://flic.kr/p/VZu5aB
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Old 06-20-17, 08:33 PM
  #81  
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Found a donor and an XT conversion is partially complete - pedals, crank, rd, hubs. Need to locate an M735 top pull FD and second set of XT cantilevers.




Last edited by 9volt; 06-20-17 at 08:38 PM.
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Old 06-20-17, 08:38 PM
  #82  
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Originally Posted by 9volt
Found a donor and an XT conversion is partially complete - pedals, crank, rd, hubs. Need to locate an M735 top pull FD.

snip . . .
What's the BB you're running on the bike? That's a 73 mm BB, right?
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Old 06-20-17, 08:41 PM
  #83  
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Originally Posted by bikemig
What's the BB you're running on the bike? That's a 73 mm BB, right?
Stock BB right now. I don't really know BB sizing. Why do you ask?
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Old 06-20-17, 08:49 PM
  #84  
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Sweet build @TenGrainBread
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Old 06-20-17, 08:57 PM
  #85  
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Originally Posted by 9volt
Stock BB right now. I don't really know BB sizing. Why do you ask?
I think it may be difficult to find a shimano square taper replacement that will work so was curious.

I have a trek 950 I'm rebuilding and the longest available shimano sealed BB (122.5 73 mm) isn't quite long enough for the deore crank that came stock on the bike.

Last edited by bikemig; 06-20-17 at 09:04 PM.
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Old 06-20-17, 09:21 PM
  #86  
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Originally Posted by bikemig
I think it may be difficult to find a shimano square taper replacement that will work so was curious.

I have a trek 950 I'm rebuilding and the longest available shimano sealed BB (122.5 73 mm) isn't quite long enough for the deore crank that came stock on the bike.
You can find ~127mm spindle Shimano BBs online. As long as you're within a few millimeters shouldn't affect chainline too much.
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Old 06-20-17, 09:26 PM
  #87  
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Originally Posted by TenGrainBread
You can find ~127mm spindle Shimano BBs online. As long as you're within a few millimeters shouldn't affect chainline too much.
I do not believe you can get a 127 mm shimano sealed square taper BB for a 73 mm bottom bracket. I haven't looked around for a 127 mm spindle for a cup and cone but yes they are available even if the stock must be dwindling over time. Also I think sunlite has a sealed BB at the right length as well.
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Old 06-21-17, 07:32 AM
  #88  
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Love! I converted my 90' 930 into a drop bar conversion. It was my main bike for quite a while. I really wanted a Trek Hybrid and originally built it up to mimic one. But soon as the vintage road bike bug bit me it converted it. I haven't ridden it that much but she is one of my favs.
Heres how she sits now:

the rest of the album with her various configurations
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Old 06-21-17, 07:34 AM
  #89  
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^ That looks great with the early graphics
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Old 06-21-17, 07:54 AM
  #90  
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Originally Posted by 9volt
^ That looks great with the early graphics
Thanks, it was my first foray into powder coating a bike. The original paint was in rough shape, it was all black with teal trek graphics. Not bad, but I wanted something original, so I found a color I liked, "Steel Grey" and I ordered the vintage trek downtube logo from Velo-Cals, I made sure to get the clear backing so the decals look legit.
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Old 06-21-17, 09:11 AM
  #91  
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Originally Posted by bikemig
I do not believe you can get a 127 mm shimano sealed square taper BB for a 73 mm bottom bracket. I haven't looked around for a 127 mm spindle for a cup and cone but yes they are available even if the stock must be dwindling over time. Also I think sunlite has a sealed BB at the right length as well.
I'm not saying you don't have one, but it is not common to find a steel bike of that era with a 73mm bottom bracket shell. I would check, and re-check that it is not a 68. Or, I would find a shop willing to face it down to 68mm, which is only 2.5 off each side...and being steel, well within the abilities of the common facing sets.
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Old 06-21-17, 09:34 AM
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Originally Posted by wschruba
I'm not saying you don't have one, but it is not common to find a steel bike of that era with a 73mm bottom bracket shell. I would check, and re-check that it is not a 68. Or, I would find a shop willing to face it down to 68mm, which is only 2.5 off each side...and being steel, well within the abilities of the common facing sets.
I know it's 73 mm. Yes there are solutions but, on balance, I'd rather source the right length BB than face the BB down to 68.
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Old 04-20-18, 06:36 PM
  #93  
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Just picked up on this thread - very helpful as I just picked up a VGC '93 Trek 930 frame (w/Deore LX crank & cantilevers and XT front derailleur) for $25.
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Old 04-20-18, 06:55 PM
  #94  
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Fresh pic with more purple

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Old 05-21-19, 02:06 PM
  #95  
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Well, I was going to post a photo of the bike frame I found in the dumpster while dumpster diving this weekend but the forum wont let me. Anyway, thanks for the thread. I will be using it as a reference while building the trek singletrack 930 I pulled from the dumpster into a gravel/touring bike for next years Landrun 100.
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Old 05-21-19, 02:54 PM
  #96  
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Cool thread indeed. These are great bikes.
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Old 05-21-19, 02:58 PM
  #97  
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Welcome to the BF site! You brought a good one to show( when you can).
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Old 05-23-19, 10:50 AM
  #98  
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Ok, roast me if you need to but I am a complete novice at bike building and trying to find a starting point with this frame and fork. I guess I will start with the headset. What size do I need for the 930?
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Old 05-23-19, 11:40 AM
  #99  
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Originally Posted by NicRuiz41
Ok, roast me if you need to but I am a complete novice at bike building and trying to find a starting point with this frame and fork. I guess I will start with the headset. What size do I need for the 930?
Depends on the year. My 1993 used a 1 1/8" threaded headset. Go a few years back and it's 1" threadless. A few years forward and it's 1 1/8" threadless.
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Old 05-23-19, 12:11 PM
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Originally Posted by TenGrainBread
Depends on the year. My 1993 used a 1 1/8" threaded headset. Go a few years back and it's 1" threadless. A few years forward and it's 1 1/8" threadless.
Ok, Cool! Looks like it is 1 1/8". I took the headset of one of my 70's road bikes and too small so definitely lookin at 1 1/8".
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