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Reconsidering fixing Trek antelop 830

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Reconsidering fixing Trek antelop 830

Old 08-13-13, 10:14 PM
  #1  
bluevarsity
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Reconsidering fixing Trek antelop 830

Hi there all bike fans ,

I was going to get something newer/used, whatever, but I got to surfing and found a page about a revitalized trek similar or so to mine.

I got to looking , and as I did realized that all components ( short of rims & tires ) are original Im pretty sure.

There is a decal on bottom frame by back tire that clearly says suntour equipped, and derailers, shifters , brakes and crank are all suntour. I wasn't sure for a sec about cantilever brakes as they said a brand I wasn't familiar with namely compte, but I looked at brake levers and they are also the same brand XCE, so volia it seems all original!

THe sad downside of course, is the nasty wobbly crank with now, loose bearings running around inside waiting to completely fall apart, and its a wonder it hasn't already.

So, given the new info about this bike ( I should get a picture, but its basically a 23" frame I believe from measurement, and its cream colored with teal colored 'trek' and such on angled tube and antelope on top tube of course), and short of fact I'd have to either find/use a crank puller and order new axel or get it done at shop for around $60 , new back rim and tire and new sprocket, is this worth revitalizing also ?

I have no idea how much it cost new but I figure its best to ask those here who just might know, and I did try searching btw.

If this bike isn't worth it given its possible low value new, what about this bike I found on craigslist for $ 100 ( assuming they still have it, I'll call tomorrow depending what I hear at this forum) ? :


https://seattle.craigslist.org/est/bik/3979091751.html
Thx anyone
BV
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Old 08-13-13, 10:41 PM
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The trek is better than the mongoose. You have an 89 I'm guessing. Tange atb double butted chromoly frame . New back wheel should be 20 if you look long enough on craigslist. Buy the tools or go to co op.

mongoose is much smaller than trek.
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Old 08-14-13, 12:21 AM
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A UN 26 bb cartridge is $12 via amazon. I don't know length off the top of my head, but probably 123-127mm. Find a used mtb wheel for $20-$30. Spray the bb cups with PB blaster asap, while waiting for UN 26 delivery. Take bike to coop and use their tools.
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Old 08-14-13, 08:20 AM
  #4  
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Yeah, crank pullers and Shimano BB install tools are pretty cheap. You could do the whole job yourself for less than the bike shop can, and you'll have the tools for the next time. The fixed cup (right side) will be hard to remove- best use the "sheldon brown" method- basically a big nut and bolt through the axle hole that tightens as you unscrew the cup (left-hand threading), since you won't be able to do it with the wrench flats on the cup.
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Old 08-14-13, 09:18 AM
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Chris Chicago
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if it's an 89 he has a sealed bb. though from his loose bearings description that might not be the case
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Old 08-14-13, 10:19 AM
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THis all just got a lot more complicated , in working with my trek ( I suppose any bike really ). I called trek and they weren't terribly helpful honestly, not that they have to be, they are there to sell bikes They couldn't tell me the system my bike uses ( bottom bracket), which I discovered from amazon could be one of several ( and trek verifies they don't seem to know which one either, though Im supposedly able to tell by looking ? <as if>) as seen here in descript of park tool :

https://www.amazon.com/Park-Tool-Pull...ef=pd_sim_sg_6

So now I don't even know which park tool I need and on top of that it seems I need some special method to remove 'right' side ( thank you for warning!).

I appreciate all of this information as at least I'm forewarned, but its beginning to sound like a job for superbikerepairman not a average 'hobbyist' repairman like myself ( though I thoroughly enjoy it).

I'm still tempted to try, but the variables atm seem a tad iffy/insurmountable honestly; quite clear why most people don't even try.

I"ll call our local trek shop when it opens and see if they are willing to give me basic info on what I need, as while I know they'd rather let me pay them to do it all, but given I do not live anywhere near a bike coop thus my options aren't terribly impressive , maybe they will give me some basic help . NOthing about the bike repair procedure is complicated short of this darn crank. Cranky thing! lol

Decisisions again...
https://www.amazon.com/gp/product/B00...0C51FVZXYKCWN3 < do I also need this in addition to the half moon shaped tool that fits into left side of BB ?

Cheers
BV

Last edited by bluevarsity; 08-14-13 at 10:45 AM. Reason: more info added
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Old 08-14-13, 10:49 AM
  #7  
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BV, If you need a bike now and the Mongoose fits, buy it. You can also use it as a visual aid while working on the Trek. The crank arm puller is pretty universal for square tape cranks, but I don't know which BB you have. Are there external flats or notches on either side? With the crank arms removed you can measure the spindle length on the BB and order one and then have a shop R&R the BB, cost likely to be less than $20.

Do you know where the ball bearing are coming from?

Brad
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Old 08-14-13, 11:03 AM
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btw: from https://www.sheldonbrown.com/tooltips/bbcups.html , it says: " For normal servicing, only the adjustable (left) cup need be removed. It is a bad idea to remove the fixed (right) cup for a routine cleaning and repacking. The fixed cup should only be removed when it is going to be replaced with another one, as when replacing an entire crankset. "

Doesn't sound like I need to deal with right side at all ?

thx
BV
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Old 08-14-13, 11:07 AM
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I'll find out around 10:00 or thereafter about mongoose. I was too late , given the craigslist add was several days old so the person coming to look at it might well take it. I'ts in outstanding shape from what I see, so I"d be surprised if they don't take it. If not, and yes Im desperate for a bike , I'll prob. grab it given it looks quite decent.

OK on the puller, ty !

I'm going to just take some pictures of bike and of BB, so those here can see what I have Let me do that and return...
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Old 08-14-13, 11:11 AM
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I don't remember to many loose ball BB's by 89.
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Old 08-14-13, 11:29 AM
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OK I have some pictures to help with all of this:


https://sdrv.ms/15EPDAC

There ya go, hope that helps, and if not I can take more.

Cheers
BV
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Old 08-14-13, 11:45 AM
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Originally Posted by bluevarsity View Post
btw: from https://www.sheldonbrown.com/tooltips/bbcups.html , it says: " For normal servicing, only the adjustable (left) cup need be removed. It is a bad idea to remove the fixed (right) cup for a routine cleaning and repacking. The fixed cup should only be removed when it is going to be replaced with another one, as when replacing an entire crankset. "

Doesn't sound like I need to deal with right side at all ?


BV
You don't need to remove the fixed cup if you're going to reinstall that BB. If you're switching to a cartridge, then yes you do.

Personally I'd rather have the Trek than the Mongoose - I prefer a rigid frame. Otoh, if that Trek fits you as shown (with the saddle jammed all the way down) it's probably too large a frame for you. Still it would be worth fixing the BB issue imho as it's a pretty decent all-rounder and it would be hard to sell with a bogus BB.

Last edited by due ruote; 08-14-13 at 11:50 AM.
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Old 08-14-13, 12:29 PM
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You need 4 bike specific tools to do a thorough job, crank puller, bb tool, lock ring tool, and drive side wrench remover, plus a hammer and 14mm socket. Therefore I repeat the following:

A 68mm UN 26 bb cartridge is $12 via amazon. I don't know length off the top of my head, but probably 123-127mm. Find a used mtb wheel for $20-$30. Spray the bb cups with PB blaster asap, while waiting for UN 26 delivery. Take bike to coop and use their tools.

https://www.bikeshack.org
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Old 08-14-13, 12:29 PM
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go to your bike shop and ask them for the park tool spanner that allows wrenching the adjustable cup of your bike. it'll be $15 or so. a regular adjustable wrench can be used on the fixed cup if you decide to service it (which i always do with bikes i keep for a year or more).

the crank puller i love is marketed by snap-on under the name 'wrench force.' it is used with an adjustable wrench. mine was $7. the park tool that combines a handle with its puller is a big piece of stink.

warning: if you start buying tools and wrenching bikes, this could become addictive, leading to financial problems and possibly jail.
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Old 08-14-13, 01:38 PM
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hmm, not a sealed bb after all. I'd follow oddjobs instructions. but if you want to buy a budget crank puller there's this
https://compare.ebay.com/like/4005405...Types&var=sbar

shipping will take a while
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Old 08-14-13, 02:16 PM
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A Trek 830 was one of the few "free bikes" that I have encountered, It needed and still needs a rear wheel rebuild. When I get to it I suspect it will be a decent bike when done.
No Stainless spokes on mine, which depending on where you live means quite a bit of added maintenance.
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Old 08-14-13, 02:23 PM
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Originally Posted by bluevarsity View Post
btw: from https://www.sheldonbrown.com/tooltips/bbcups.html , it says: " For normal servicing, only the adjustable (left) cup need be removed. It is a bad idea to remove the fixed (right) cup for a routine cleaning and repacking. The fixed cup should only be removed when it is going to be replaced with another one, as when replacing an entire crankset. "

Doesn't sound like I need to deal with right side at all ?

thx
BV
I completely disagree with Sir Sheldon on this one. First, how do you thoroughly clean and inspect it when it is in place? Secondly, its a lot easier to install replacement bearings and grease with the bb in hand. Third, if it is a keeper, it is going to be just that much harder next time to remove. The only time I will consider leaving one in place is with an older french bb. Since the drive side is not reverse threaded, they can tend to come loose. So if the original is in there tight, I leave well enough alone.

Bearings? 11 1/4 inch loose bearings per side on a bb on a Trek mtb.

Best deal for a budding mechanic is to find a co-op. They will have the tools, and experienced volunteers on hand to guide you.
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Old 08-19-13, 09:36 AM
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Im afraid taking it to bike coop isn't doable. I WISH I could , but the only coop shop is way far away in seattle from where I live,,not doable.

Great idea though, I wish I could.

Ill keep it in mind though if a situation arises where it makes it possible.

thx
lee
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Old 08-19-13, 10:35 AM
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Actually with pb blaster soaking overnight on the cup threads, a pair of channel locks and large crescent wrench will handle all cups.
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Old 08-19-13, 11:30 AM
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Get a crank puller. Unscrew the crank bolts. Pull the crank. Unscrew the big nut on the non-drive side. Unscrew the non-drive side cone. Remove the spindle and all the ball bearings. Clean out the cups and the spindle. Buy some ball bearings. Grease up the cups and stick your ball bearings into the grease. Carefully stick the spindle back through. Screw on the non-drive cone until is is just barely snug. Screw the big nut on to hold it in place. Little bit of grease on the ends of the spindle. Put the crank arms back on the correct sides. Screw in the crank bolts.

Ride it like you stole it.
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