How to take apart this 90s threaded headset?
#1
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How to take apart this 90s threaded headset?
Hello!
Im working on a 90s giant x1000 hybrid bike. I need to get the bearings for the headset out to service them as well as I can as this is a budget build. But I dont know how to get them out. There seem to be some plastic retainer that is holding the cartridge? inside and I dont know how to take it out without breaking it. The plastic retainer is held in by what feels like a lip at the edge of the headset cup.
Ive only worked on loose/caged ball bearing threaded headsets before so I dont know if this is normal or some weird 90s giant proprietary headset.
Thank you for any help!
Im working on a 90s giant x1000 hybrid bike. I need to get the bearings for the headset out to service them as well as I can as this is a budget build. But I dont know how to get them out. There seem to be some plastic retainer that is holding the cartridge? inside and I dont know how to take it out without breaking it. The plastic retainer is held in by what feels like a lip at the edge of the headset cup.
Ive only worked on loose/caged ball bearing threaded headsets before so I dont know if this is normal or some weird 90s giant proprietary headset.
Thank you for any help!
#2
señor miembro
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#3
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Yes the dark race revolves. The upper bearing is decent, the lower one is super gritty so needs a good clean before any new grease.
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That white plastic ring is probably just a seal that can be carefully pried off with a thin blade. Once you remove it, you'll see the bearing balls which can be flushed out with WD-40 or some solvent. Dry off the solvent and pack some grease in there, replace the seal and test for smoothness.
#6
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That white plastic ring is probably just a seal that can be carefully pried off with a thin blade. Once you remove it, you'll see the bearing balls which can be flushed out with WD-40 or some solvent. Dry off the solvent and pack some grease in there, replace the seal and test for smoothness.
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#7
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Excellent pics, Totte86!
#8
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Yes, for sure! Made it easy to see what is going on!
If you plan to keep the bike, and I'm not sure why not, decent conventional headsets are not a bad investment. You don't have to go all the way to Chris King, but Tange probably has something in its catalog which is durable and servicable. I'd hate to have that one and have to go through this over and over.
If you plan to keep the bike, and I'm not sure why not, decent conventional headsets are not a bad investment. You don't have to go all the way to Chris King, but Tange probably has something in its catalog which is durable and servicable. I'd hate to have that one and have to go through this over and over.
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Those are replaceable bearings, I would have no qualms popping those seals out for service or replacement. I have serviced that type with solvent and mushing grease into.
You are probably better off with a new bearing set for the lower cup.
You are probably better off with a new bearing set for the lower cup.
#10
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As long as you have the cups out of the frame you might as start with a completely new headset. If the bike has a 1" steerer, Velo Orange sells a 1" threaded headset with excellent cartridge bearings and a split crown race that installs with no tools.
If it's a 1-1/8" steerer, threaded headsets are less common but available.
If it's a 1-1/8" steerer, threaded headsets are less common but available.
#11
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I probably would have pried out the steel retainers, or at least see how they react when prying. They don't really serve a function during operation of the headset beyond holding things in during assembly. Wouldn't need to be perfect for re installation.
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#12
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Your tip to use their catalog is a good one. I always found their web site to be tedious to navigate when trying to compare products, and recently, it doesn't even seem to be working correctly (like, diagrams showing dimensions seem to be missing).
I downloaded a PDF version of their 2017 catalog, and that really helps.
#14
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I get the want to be able to rebuild and reuse a thing indefinitely, but what you’ve got is a 30-year old, recreational-grade hybrid bike; it has far outlived its expected design parameters.
Like posted above, you can probably get that retainer out, or flush and smoosh some new grease in there, but failing that, a new headset is a small price to pay for being that far out on the durability bell curve.
#15
Keefusb
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A lightly used Shimano 600/Ultegra sealed bearing headset can be had for $50 or so on eBay if you have a 1" threaded steerer. I have this headset on all 5 of my 1" threaded steerer bikes, two of them were installed new in the 90's and just cleaned and lubed every few years. I have a Chris King on my one threadless steerer bike. Both types of headsets are bulletproof and can/should last the life of the bike with only occasional cleaning/re-greasing servicing.