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Old shimano 600 switch out(12 posts)

Old shimano 600 switch outRaven1911
Feb 7, 2003 11:20 PM
I have a question. My brother has a bike with shimano 600 components with down tube shifters and all. He likes the frame though and wants to keep it. I was wondering if you can just swap out the 600 components for an ultegra grouppo or do you have to do anything to the frame? If it is just bolt on stuff then it may be worth it. If not, he might want to consider a new frame with the components already on it. Any thoughts?

It'll work fine except for possibly rear dropout spacing....Dave Hickey
Feb 8, 2003 4:44 AM
Everything will swap out fine. The only issue might be rear hub spacing. Newer hubs are 130mm spacing. Depending on the year, the rear might be 126mm rear spacing. If it's a steel frame, it's not a problem. You can spread the dropouts to fit a 130mm rear hub.
Other considerationsMel Erickson
Feb 8, 2003 8:20 AM
Make sure you get the right style of front derailleur. There are clamp on and braze on styles. Check out the current derailleur and just get the same style. I assume you will be going from 7/8 to 9 spd. You'll need new shift/brake levers also. Are you switching the crank and/or bottom bracket? Is it a double or triple? It's really up to you but not necessary to change the crank to go to 9 spd. Make sure the STI levers will handle a triple if you go with that (or already have it on the bike and don't intend to switch). You'll also need a new cassette. If your current wheels are old enough you may not have a cassette hub. If not you'll either have to rebuild the wheel with a new hub or get a new wheel. Brakes are another option. You can keep what you've got or get new, up to you. It's never as easy at it appears.
re: Old shimano 600 switch outrwbadley
Feb 8, 2003 9:43 AM
It can be done. One thing to think about is if the cost of the upgrade will be more than getting a new bike. If you are paying full retail for the switch, you may be looking at (with wheels) close to 1000. If you keep your eyes open, you may find a real nice (little used) bike with 105/ultegra for alot less than that.

If you already have the group sitting around collecting dust, by all means do the swap. If he likes the frame it may be worth it.

The newer bikes are pretty nice. If his bike is 15-20 years old it may be worthwhile to keep it as is.

Making the horns longer?????Raven1911
Feb 8, 2003 10:30 AM
That is the problem. What sense does that make? You can pretty much go out and buy a bike for less than buying a grouppo and putting it on an existing bike. How dumb! But yes, that is what we are considering for now. The main thing he wants is the shifting levers since the horns are longer. Are there any things you can purchase to make older shifting levers that longer? The old shimano 600 horns on his bike are really short, but I have seen LA's climbing bike and he uses an older horn but it looks like his mechanic made the horn longer to match the Dura ace horn. How do they do that?

horns ?????Rusty Coggs
Feb 8, 2003 12:26 PM
lost me.........
Shimano's new genetic engineering breakthrough? (nm)B2
Feb 8, 2003 3:55 PM
I can only imagine what you are talking about....Lone Gunman
Feb 8, 2003 4:20 PM
The shift body where you place your hands or the levers that you squeeze to apply the brakes? You can buy new aero brake levers, stay with the DT shifters, I use a set of 105s on my SS that feel great under my hands, some of the older levers were small for alot of peeps hands.

A solution may be "at hand." You have not said if the bike is a 6 or 7 speed, only that it is dt shifting. I bought and still use today a set of RSX STI shifters. They came in double or triple 7 speed. They work great if you have a hyperglide 7 speed cassette on the rear, beefy bodies as compared to the 600 levers that you currently have. Cheap solution if you can find them and your bike is a 7 speed. If a 6, get a 7 speed hub and cassette and the RSX shifters, have a rear wheel built up. Swap out the parts and done.
Its an old 7 speed...Raven1911
Feb 8, 2003 5:07 PM
By horns, I am referring to the levers you rest your hands on from the handlebar to the brake. In the shimano 600, they are just brake levers and really small and short. The ultegra and current grouppo's are integrated shifter/brakes and the levers are longer and wider where they connect to the handlebar. The new system is much more comfortable and that is what my brother is looking for. I suppose we could just buy some 105 shifters and not use the shifter mechanism, but just the brake lever. I just saw this on LA's bike and thought maybe his mechanic was doing something with the old lever that someone knew about.

Its an old 7 speed...Lone Gunman
Feb 8, 2003 6:08 PM
The RSX shifters I spoke of will work on the 7 speed, maybe not real smooth unless he has the hyperglide (kinda sharktooth looking teeth on the cassette). Nashbar sells Shimano aero brake levers for $45. They are fairly beefy, but not as beefy as STI's. RSX are almost as beefy as my Ultegra STI, maybe only slightly smaller. Search for them on net or ebay, well worth the performance upgrade, but you need that hyperglide to smooth them out.
Lances bikeRusty Coggs
Feb 8, 2003 7:05 PM
The mt stage bike uses a downtube shifter for the front derailer and a standad non sti aero brake lever on the left. In addition to the 7 speed rsx sti levers,you can even use shimano 8 speed non dura ace sti even tho 7 and 8 speed cog spacing is sliighty different.Makes no difference if the rear cog are uniglide or hyperglide as long as the system is can even use your old rear deralier,but will likely need a STI compatible front.
Thanks for the responses fellas....(nm)Raven1911
Feb 8, 2003 10:17 PM