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My first venture into vintage MTBs

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My first venture into vintage MTBs

Old 08-04-17, 02:01 PM
  #26  
AustinFitz
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Thanks guys! I'm having fun with it so far. I cleaned up the chrome using aluminum foil and water just because the rust wasn't super bad, and I am currently out of oxalic acid. I've yet to try naval jelly, but I am always trying out new rust removal techniques. I'm not dead set on any one method. They each have their pros and cons. I'm also out of actual chrome polish at the moment, so I just wiped everything down with some wd-40 after the foil rubdown. I'm sure the shine would look much better with a quick chrome polish.

I removed the rust from the wheel spokes using a brass wire brush, and a whole lot of time... Normally I would have just replaced them, but it was only light surface rust. The nipples were all still in good shape, and I really didn't want to spend any money. It was worth the effort in my opinion even if I have to keep up with them to prevent re-rusting. As you can see they look MUCH better.

Before:


After:


The blue rim strips are just ribbons lol. I took a good pic of the decal color with my phone and went to the craft section of my local department store with it. Found an 18ft. roll of 7/8" wide ribbon with a cool sheen to it. The color was basically an exact color match, and it was only like $2... 7/8" turned out to be too wide to lay down nicely inside the rim though. The original strips were more like 1/2" or so. The extra width of the ribbon made it a huge pain to get it to lay down without tons of wrinkles and folds. I finally got it all worked out though. I then just used some of the standard thick rubber rim strips over the top of the ribbon, and installed the tires and tubes!

I probably am going to rebuild it with most all of it's original parts. It definitely is a cool bike in stock form, but I can't ever leave anything stock for some reason haha. Living in southeastern Louisiana I don't really have anywhere near me to actually mountain bike anyway. Just lots of dirt/gravel roads that aren't so conducive to skinny tires. I think I'm going to be reusing everything but the stock handlebars. They'll be swapped out for some bars I just recently got on a freebie junk Schwinn. They have a bit more rise, are are a little more swept back. Upright cruiser type bars. The freebie Schwinn also provided me with a nice set of 26" aluminum fenders I'll be using on the goose! So yeah it will be pretty much all original minus the handlebars and tires, plus I'll be adding front and rear racks and fenders... Should be a pretty sweet ride!

Last edited by AustinFitz; 08-04-17 at 02:20 PM.
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Old 08-04-17, 02:43 PM
  #27  
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I had the red version of that bike and I used it as my main commuter set up with an Albatross bar and bar end shifters I had sitting around. It was great for that right up until it got stolen.

I love that biplane fork and I am envious of yours.
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Old 06-23-18, 05:24 PM
  #28  
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Quill Stem

Wanna ask any owners of this bike if the quill stem is in fact, 21.1mm? Thanks.
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Old 06-23-18, 06:51 PM
  #29  
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Originally Posted by mijome07 View Post
Wanna ask any owners of this bike if the quill stem is in fact, 21.1mm? Thanks.
My '87 is 22.2. Only weird measurement on mine is the 126mm rear dropouts.



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Old 06-23-18, 07:15 PM
  #30  
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Originally Posted by 70sSanO View Post
Nice bike! I'm guessing 32 LBS with a rigid fork is probably standard for early/mid 80's.

John
I thought that the weight was high as well but that is likely around par for bikes of that era. I haven't weighed my two 1987 Specialized MTBs (one stumpy, one rock hopper) but neither is a light weight. I reckon that those early MTBs used relatively thick double butted tubing but I'd like to read some documentation on that. By the 90s, they certainly became lighter. My 1993 Bridgestone MB 1 weighs in at a svelte 25 pounds but that uses thinner walled ritchey logic prestige tubing and relatively lightweight parts throughout.
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Old 06-23-18, 09:38 PM
  #31  
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Love mine 1984
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Old 06-23-18, 11:22 PM
  #32  
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Originally Posted by belacqua View Post
My '87 is 22.2. Only weird measurement on mine is the 126mm rear dropouts.



Yeah, the 22 won't fit my '85. And the rear is 130mm as I can spread them by hand and fit a 135mm hub/wheel.

Originally Posted by kc0yef View Post
Love mine 1984
1984? All I've read indicates 1985 being the 1st year Mongoose made the ATB. Unless I'm missing something. Still nice bikes, regardless of year.
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Old 06-24-18, 08:01 AM
  #33  
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My 85 did not work with a 22.2 quill stem.
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Old 06-24-18, 08:55 AM
  #34  
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Originally Posted by beicster View Post
My 85 did not work with a 22.2 quill stem.
Yep. Mongoose was still using BMX size with the introduction of the ATB. I assume this because a 22 didn't fit for me either. So I guess it's the next size down, 21.1mm. Wanna make sure as I wanna order a NOS stem. Thanks.

Oh and the '85 catalog says these took a 24.8mm seatpost when they actually take a 25.8. Minor typo I guess.
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Old 06-24-18, 06:39 PM
  #35  
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maybe?

Originally Posted by mijome07 View Post
1984? All I've read indicates 1985 being the 1st year Mongoose made the ATB. Unless I'm missing something. Still nice bikes, regardless of year.
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Old 08-14-18, 07:27 AM
  #36  
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Man it's been a while since I've been on here! Had a bunch of life stuff happen, and my bike hobby was put on pause for a while. Things seem to be settling back down to normal now though, so I'm going to start digging back into my projects right where I left off. My Goose is in the exact same state as it was in the last pictures I posted!

Speaking of pictures, I see there have been some really sweet bikes posted in here since the last time I was on! That's awesome! I also noticed some questions about stem quill sizes. My original SR MTS-100 is clearly stamped 0.833 which as I'm sure most of you know is 21.1mm.

My plans are pretty much the same as before. Clean up all of the original parts, reuse most of them, possibly change the bars, and add fenders and a rack or two. Maybe even some lighting. We'll just see how it goes!
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Old 08-19-18, 07:47 PM
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can't wait to see the build
Originally Posted by AustinFitz View Post
Speaking of pictures, SR MTS-100 is clearly stamped 0.833 which as I'm sure most of you know is 21.1mm.
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Old 08-20-18, 11:11 PM
  #38  
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Since it originally came with a Mountech RD, and I have this guy hanging around, I might just put it on the Goose! Needs a good cleaning up, but I think it would be cool!

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