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8 speed brifters???

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8 speed brifters???

Old 06-02-10, 10:20 AM
  #1  
dit
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8 speed brifters???

I have aquired my first bike with brifters. It is a Cannondale r300 (1999 I think). The bike is pristeen and I probably paid too much but I wanted the bike. The cassette cog changer does not work properly. It is a SRX or RSX. I know several of you fellas are running similar shifters. Seems like I read somewhere that they can be cleaned by spraying something into the inards ( high tech term ) that will probably fix the no shift problem. A little detail on this proceedure would be much appreciated.

A couple more questions.
1. It has a Coda stem but it is too long. Does Coda make shorter ones?
2. What is the capacity of the RSX GT rear derailluer?

http://s590.photobucket.com/albums/s...t=DSC06381.jpg







Last edited by dit; 06-02-10 at 10:35 AM. Reason: picture failure
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Old 06-02-10, 10:25 AM
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I wouldn't worry about getting a CODA stem. I would just head to your favorite bike shop and have them order you a shorter stem, and advise you on what length to get.

As far as the WD40 clean out, sometimes it works, and sometimes it doesn't. It is definitely not a cure all and I would not count on it. But it is cheap (free) so always the first place to start if the shifter is not working. If that does not work, you can have them rebuilt by a guy in Spartanburg, SC. He advertises on ebay and has a facebook site as well. He only works on the seven and eight speed stuff. I have not used him, but he has been doing it for a while.

http://www.facebook.com/group.php?gid=100856572916

Last edited by wrk101; 06-02-10 at 10:34 AM.
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Old 06-02-10, 11:26 AM
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Rear shifter should be able to handle 34t without much effort.

Release the brake cable and spray W-40 or equivalent liberally around the shifting mechanism inside the brake lever. Wait 1/2 hour. Apply tension to the shift cable while attempting to upshift/downshift with the brake lever.
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Old 06-02-10, 11:57 AM
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Originally Posted by furballi View Post
Release the brake cable and spray W-40 or equivalent liberally around the shifting mechanism inside the brake lever. Wait 1/2 hour. Apply tension to the shift cable while attempting to upshift/downshift with the brake lever.
This. Sometimes it takes a lot of all-the-way-up and all-the-way-down shifts to get it clicking smoothly through all the gears again.
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Old 06-02-10, 01:29 PM
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I had to do the same thing for my mountain bike's 9 speed shifters.

Took so much WD-40 it was dripping for a few days even after wiping off, but it's buttery smooth again.
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Old 06-02-10, 02:08 PM
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Bike looks to be in fabulous condition, congrats. Get that shifter working and ride, ride, ride.
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Old 06-02-10, 02:30 PM
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Brifter Repar

Originally Posted by wrk101 View Post
I wouldn't worry about getting a CODA stem. I would just head to your favorite bike shop and have them order you a shorter stem, and advise you on what length to get.

As far as the WD40 clean out, sometimes it works, and sometimes it doesn't. It is definitely not a cure all and I would not count on it. But it is cheap (free) so always the first place to start if the shifter is not working. If that does not work, you can have them rebuilt by a guy in Spartanburg, SC. He advertises on ebay and has a facebook site as well. He only works on the seven and eight speed stuff. I have not used him, but he has been doing it for a while.

http://www.facebook.com/group.php?gid=100856572916
Thanks for the link to the repair guy! Maybe there is hope for my Shimano 600EX 8sp brifter yet!
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Old 06-02-10, 03:23 PM
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Thanks to all.....It appears that this bike has been ridden very little and I think the shifter problem is from lack of use. I bought if from a nice young man that just happens to be a mountain biker and had no time for his road bike. I really think the WD-40 bath has a good chance of fixing the problem. A 70mm stem and 30 tooth cog will make it just what I need to start rolling up the miles.
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Old 06-02-10, 04:43 PM
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I have had good luck holding the shifters under hot running water for a minute before the WD-40. Sometimes the hot water will dislodge the dried up grease and it will start shifting even without lubrication. Shake, dry and follow with WD-40.
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Old 06-02-10, 04:48 PM
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I believe the guy in SC soaks them in a ultrasonic cleaner with a light oil but not 100 percent sure. I have a set of RSX's and they work every bit as well as the 105's and Tiagra's I have on my other bikes.. Try to save them or give me first dibs.
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Old 06-03-10, 03:07 PM
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Update on the shifter problem.......After flushing the shifter out with WD-40 I notice little difference with the shifter and I was getting no cable movement at the shifter. I did some investigating on how these shifters work since this is my first experience with this new fangled contrapsion. It turns out that the cables had just stretched and needed adjusted. It took me a while to understand the mechanics but after the adjusting it all seems well. I will take it for a ride tomorrow.......I probably need a larger cog cassette and I am certain that I will be looking for a shorter reach stem.

Thanks again for all your help
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Old 06-05-10, 07:09 AM
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I'm the guy in SC who repairs these and I DO NOT just put them in an ultrasonic cleaner and put oil in them. WD-40 is one of the worst things you can do to them. It will kill your hoods. I take them apart, clean them out and relube them with grease the way they are intended to be lubed by Shmano. Light oil just runs to the bottom, just like in your car engine when it returns to the oil pan. If you want to ruin your shifters in the long term use light oil. It will keep me in business doing proper repairs. Check out the pictures on my FB group and you will see what I mean.
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Old 06-05-10, 02:20 PM
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I'm just jealous of the 3x7 RSX group. Once you get it adjusted and lubed well, it's smooth as butter, and a top-notch group for just about anything.

eeforme, I'm sure no critique was intended. your reputation is very good on this forum. We appreciate what you do. I have now found a guy with a boneyard of 9-sp parts for Shimano, and now, it seems, due to Campy and SRAM and fine technicians like yourself, Shimano has decided to make repair parts available for some of their 10-sp STI shifters. I've used a couple of tips you've sent via eBay, and they work.
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Old 06-05-10, 06:32 PM
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No offense is taken. I am just trying to warn you what can happen if they are not relubed properly. WD-40 is a solvent, it is not a lubricant. After so many times spraying in there you will remove all of the oil from the grease. They will get harder to shift and then parts will break or wear. These need to have grease in them to properly lubricate the mechanism. The grease also cushions the parts as they move against each other.
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Old 06-06-10, 07:03 PM
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ive taken some severely beaten stis that didnt work and placed them in hot water as stated. I then used a teflon (dupont) spray and just drenched them internally with the small soaker nozzle. I then worked the shifters several times and redrenched them. In the end....they work great. SOme times they get gummed up from the wrong types of lubes or old lube....and even sweat.
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Old 06-06-10, 08:02 PM
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Originally Posted by eeforme View Post
No offense is taken. I am just trying to warn you what can happen if they are not relubed properly. WD-40 is a solvent, it is not a lubricant. After so many times spraying in there you will remove all of the oil from the grease. They will get harder to shift and then parts will break or wear. These need to have grease in them to properly lubricate the mechanism. The grease also cushions the parts as they move against each other.
What type of grease do you use? Teflon wheel bearing grease?
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Old 06-07-10, 06:13 AM
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Originally Posted by darkmagus View Post
What type of grease do you use? Teflon wheel bearing grease?
I use white lithium. It is more expensive than most and you have to take the shifter apart to get it in all the places it needs to be. Check out the pictures on the link that was posted above and you will see what I mean.
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Old 11-02-10, 01:03 AM
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I've just bought a very cheap CrMo Shimano Samurai with RSX100 brifters, an 8 speed cassette and an RSX derailleur. The bike is old buyt hardly used. I'll p[ost a pic when it's cleaned up a bit.

Everything worked well except the secondary plastic handled levers inside the main allloy levers. Since neither of those worked, I assumed it was a maintenance issue. Frightened by stories of dismantling these, and knowing that the 8 speed cassette wasn't common I didn't want to stuff everything up, so I sprayed WD40 into their guts and left the bike in the sun for a day.

So much for 'unserviceable, need all new brake levers and shifters' from the local fancy bike shop.

Lo and behold! The right hand side and cluster are as smooth as silk.
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