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Old 07-23-07, 02:34 PM   #1
masiman
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Brakes/Shifter 7sp upgrade, Older Stumpjumper

A buddy of mine just picked up an older Stumpjumper. We think it is a mid to late 90's, 7speed, LX gruppo. We are changing the threaded stem to a shorter threaded stem (130 to 90) to fit him. The old front brake cable hanger was through the neck of the old stem. We figured we should upgrade his brakes to V-brakes since we did not have much height to add a hanger at the headset. I don't have the bike in front of me and I can't remember if the shifters and levers are integrated. I'd rather go without a travel agent, but I will if it makes the most sense. He is leaving for school in a few weeks and I wanted to get it done with some time to ensure it works before he goes. He will be doing mostly campus riding. I don't suspect he will be doing serious XC or DH. If he does, this will carry him until he gets more experience and wants/needs something a little more specific.


Questions:
1) If the lever shifter is integrated, are there v-brake compatible 7sp levers/shifters?
2) Is it just a cassette swap to go from 7sp to 8sp? I assume there are plenty of 8sp lever/shifter combos available.
3) Any recommendations on brakes and/or levers? Trying to keep the cost down.

I'll check when I see him again whether they are integrated or not. I'll keep it simple and won't bother with question 1 or 2 if the shifters and levers are separate.

Thanks!
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Old 07-23-07, 02:55 PM   #2
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2) You will need to change the freehub body too. A 7-speed freehub body is narrower than an 8/9/10-speed body.
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Old 07-23-07, 03:15 PM   #3
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If you switch to v-brakes, and want a seven speed trigger shifter setup with integrated v-brake levers, Nashbar's got what you need:

http://www.nashbar.com/profile.cfm?c...%2D%20Mountain

Last edited by well biked; 07-23-07 at 03:22 PM.
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Old 07-23-07, 06:59 PM   #4
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Thanks Hill Rider and well biked.

I rechecked the setup. It is semi integrated. The shifter bodies bolt to the levers with a single allen bolt. I am not sure what Shimano called the style (maybe Rapidfire), but shifting is thumb to take up slack and index finger on other side of handlebar to release cable.

HR, are you saying the diameter of the freehub is smaller than on the 8/9/10? Just curious if that is what you meant.

WB, that is the part I will go with. Hopefully they are decent quality.

I'll hold off on upgrading gearing until this wears out.

Again, thanks for the excellent info.
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Old 07-23-07, 08:35 PM   #5
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I did a little more thinking about what might be possible. I guess, I only really need levers if I can find a way to mount the old pods. Do they sell a clamp so that I could mount the pods to the bars instead of to the brake levers? I like the shifters and I am guessing they might be better than the STX, plus I could get nicer levers for cheap especially if I go used. Are clamps for the pods available?

Thanks again.
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Old 07-23-07, 09:23 PM   #6
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They're Rapidfire Plus...the older Rapidfire ones had two thumb levers...

You might be able to buy the clamps from a similar set of shifters from somewhere like Loose Scews... I haven't tried it, but the pods on an old set of integrated Altus RF Plus look like they'd bolt to the STX-RC shifter clamps...

Oh, and it's not the freehub diameter that's different, it's the width.

Edit: Eh, I guess Loose Screws doesn't sell small parts like that anymore...?

You could use 8 speed shifters with the 7 sp. cassette...sort of... 8 speed shifter 7 speed cassette

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Old 07-24-07, 03:01 AM   #7
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Quote:
Originally Posted by masiman View Post
Questions:
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1) If the lever shifter is integrated, are there v-brake compatible 7sp levers/shifters?
No

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2) Is it just a cassette swap to go from 7sp to 8sp? I assume there are plenty of 8sp lever/shifter combos available.
Depends, If it truly is a mid nineties bike with a 135mm OLD probably yes. Most of those bikes used 8/9 sp cassette hub bodies with a 4.5mm spacer behind the cassette. Pull the wheel and measure the OLD. Pull the cassette off. If there isn't a spacer your stuck with 7 sp.

You can upgrade to 8/9 by replacing the cassette hub with a 8/9 sp version. Then the wheel needs to be redished to fit centered in the dropouts. You can still run 7 sp with the above mentioned spacer.

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3) Any recommendations on brakes and/or levers? Trying to keep the cost down.
This is one of those projects that really is snowballing. On chanage leads to another. My suggestion is to find another stem with a cable hanger on ebay. They're out there. Put Kool Stop Salmon colored pads on with new cables and casings.

Cantilevers work very well when properly set up. If this is just a commuter they'll work just fine. Otherwise your basically talking about swapping out half the parts on the bike for a stem swap: brakes, cables, shifters, brake levers, cassette and chain. Not a financially sound move. You could buy a new bike from Bikesdirect for that kind of money.

Keep it as is and good luck.

Tim
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Old 07-24-07, 06:50 AM   #8
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No

See link I posted above, $24.95 for the complete set from Nashbar.
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Old 07-24-07, 07:21 AM   #9
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See link I posted above, $24.95 for the complete set from Nashbar.
I wish I'd seen those levers a month ago when I switched my Kona from gripshift/cantis to rapidfire/v-brakes! I paid $22 for the shifter pods alone, dammit!
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Old 07-24-07, 07:28 AM   #10
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Tim,

Apparently there are 7sp v-brake combo's available.

I am tending away from the speed change, I would only do it if it were a simple cassette and pod swap.

I will try some local shops for a used parts box clamp. If I can't find something there, I'll look at something homemade.

I did not like the stems I saw on ebay. I thought about drilling out the stem but if I can't, the v-brakes will come in. We found one we liked in QBP. We thought about the threadless adapter route but decided on this one.

I checked out the BD bikes. I was not impressed at the $400 level. Of course I could not get this to shock and disc for that much money, but those items were not the goal anyway. This bike will look more urban. I'm hoping the thieves will look at the ones with shocks and discs that will be all over.

Thanks all for the replies. I'll try to post a pic when done.
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Old 07-25-07, 01:20 AM   #11
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http://www.nashbar.com/profile.cfm?c...%2FRear%20Hubs

heres a simple spacer to allow you to run a 8 speed cassette..
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Old 07-25-07, 02:54 AM   #12
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See link I posted above, $24.95 for the complete set from Nashbar.

You are correct, there are integrated 7 sp V-brake levers. He didn't ask about new ones in the OP. He asked if the ones he had would work with V-brakes. My answer was no, and still is. He is trying to upgrade brakes as cheaply as possible, don't blame him either.

Thanks for the link though. My son's old Trek could use a set of those.

Tim
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Old 07-25-07, 03:00 AM   #13
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Tim,

Apparently there are 7sp v-brake combo's available.

I am tending away from the speed change, I would only do it if it were a simple cassette and pod swap.

I will try some local shops for a used parts box clamp. If I can't find something there, I'll look at something homemade.

I did not like the stems I saw on ebay. I thought about drilling out the stem but if I can't, the v-brakes will come in. We found one we liked in QBP. We thought about the threadless adapter route but decided on this one.

I checked out the BD bikes. I was not impressed at the $400 level. Of course I could not get this to shock and disc for that much money, but those items were not the goal anyway. This bike will look more urban. I'm hoping the thieves will look at the ones with shocks and discs that will be all over.

Thanks all for the replies. I'll try to post a pic when done.
These kind of bike projects are always fun. IMO, it's more fun to build them than ride them. There are even those of us who like scrounging parts. I guess it's the thrill of the hunt.

You have a unique problem. Mainly a it's a deadline. You have to finish before your friend goes back to school. Old fogeys like me have all the time in the world.

Personally, I found these problems can be solved on the cheap. You just need a LOT of time and patience. Just because you didn't see what you wanted on ebay today doesn't mean it won't be there next month.

Happy hunting and good luck on the project.

Tim
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Old 07-25-07, 03:54 AM   #14
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You are correct, there are integrated 7 sp V-brake levers. He didn't ask about new ones in the OP. He asked if the ones he had would work with V-brakes. My answer was no, and still is. He is trying to upgrade brakes as cheaply as possible, don't blame him either.

Thanks for the link though. My son's old Trek could use a set of those.

Tim
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1) If the lever shifter is integrated, are there v-brake compatible 7sp levers/shifters?
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Old 07-25-07, 06:23 AM   #15
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