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Update my 1993 Specialized Stumpjumper FS?

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Update my 1993 Specialized Stumpjumper FS?

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Old 01-15-11, 01:42 PM
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zimm
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Update my 1993 Specialized Stumpjumper FS?

I still ride my 1993 Stumpjumper FS (Future shock) and right now it's set up as an urban bike with semi-knobbie tires, platform pedals and lights.

I've had it since new, it got me through college, over 2000 miles of offroad, and I have far too much sentimental value in it to get rid of it.

The Deore LX drivetrain is really worn and the shifters are falling apart. So is the futureshock (rockshox mag 21 copy). Everything else is in okay shape.

I'd like to find a new suspension fork for it as well as a new drivetrain- shifters/BB/gears. Heck maybe even a new wheelset- the front is original.

The fork uses a 1 1/8" threaded stem. I have the old 7 speed LX rear.

What's my best bet? Is there a "drive-train-in-a-box" I can order and upgrade everything?

At this point, I wouldn't mind replacing everything but the frame....
As for info on the bike- I found this: http://www.bikepedia.com/quickbike/B...r+FS&Type=bike

and: http://www.bikeforums.net/showthread...Revitalization



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Old 01-15-11, 02:04 PM
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I'd probably just go for cassette, chain, shifters, fork. Is it a freehub on the rear? If so I'd probably go for 8-speed Sram bits which are pretty reasonably priced. Biggest bummer is that any reasonably priced suspension fork is going to be about two pounds heavier than the FS if it is an exact clone of the Mag 21. Well, that and you'd need a new headset and stem also.

One step up from that is getting a build kit. Biggest bummer with this is that I don't know where any build kits with rim brake rear wheels are to be had these days. Since your frame can't do disc brakes in the back, you'd have to source a rear wheel separately and sell the one you get in the kit. Kit rear brake lever may or may not work well with your current rear canti. If not you can keep using current rear lever or get V brakes on the back. You'd also have to pick your own fork a la carte for this option. Here's a link to one for $550.

One step up from that is to get a complete bike from bikesdirect.com or similar low priced bike seller that sells hardtails at prices that practically make the frame free. You could probably use everything but the seatpost and rear wheel/brakes off the donor bike, unless you can find one with disc brakes.

You may need a shim for the front derailer clamp. Many shops will have them for a buck or so.

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Old 01-15-11, 02:13 PM
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I would get new:
Chain
Cassette
Middle & Inner Chainring
and then
Some used or NOS shifters like what you have now
Start scanning ebay for a fork in the 80mm range like a Judy or Marzocchi Z.2
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Old 01-15-11, 02:14 PM
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Rock Shox Sid Race is the fork I'd go for if going with option #1.
Hmmm, it says 15mm axle. Might need a new front hub/wheel on that. I'll have to check. Also need to call seller and make sure it has rim brake bosses if you're gonna stay with rim brakes.
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Old 01-15-11, 02:15 PM
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Originally Posted by BluesDaddy View Post
Middle & Inner Chainring
good point. new rings likely in order if they're originals.
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Old 01-15-11, 02:34 PM
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Well the middle and inner chainrings have been replaced before. It's the rapidfire shifters that are falling apart.

Since almost nothing is really interchangeable, maybe just a new fork which would let me do new wheel and a front disc brake. Then new shifters and levers. Only trick is what shifters are compatible with old deore LX front and XT 7 speed rear?

I do really like that x.7 build kit though. That and a new fork would net me an almost new bike with front disc.

Question- will that head set work on my frame? I have a 1 1/8" threaded headset.

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Old 01-15-11, 02:39 PM
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Front compatibility is pretty much universal.
Here are your 7-speed Shimano compatible indexed choices if buying new:
http://www.universalcycles.com/shopp...1&category=770 (looks like they're out of fronts ATM.
http://www.universalcycles.com/shopp...3&category=770

If your rear wheel is a freehub, I'd go for 8-speed if I were you. Your rear derailer can handle 8-speed no problem, just need to match cassette and shifter.

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Old 01-15-11, 02:52 PM
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How do I tell if it's a freehub? I know the cassette pops off after removing the splined nut...
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Old 01-15-11, 02:59 PM
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Many freewheels take a splined tool also. If it's the original equipment from the 93 stumpjumper, it's a freehub.

Freehub cogs you pull off. Freewheel cogsets screw off.
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Old 01-15-11, 04:00 PM
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i bought a donor bike off craigslist to upgrade my 1991 garyfisher. now its mostly 9 spd xt. of course i had other issues you don't have (pressed in bb and 1/4 headtube)
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