Are Threadless quill adapters any good?
05-12-06, 04:42 PM
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Are Threadless quill adapters any good?
I have a 1990 Trek 8500. The 1996 rockshox judy xc that's on it is shot. My steertube is 1 1/8 in. and it is threaded. All decent suspension forks are threadless now, and I want to put a used judy tt on it. My options are to replace the headset and stem with a threadless model for 52$ (parts and labor). (Aprx-$20 for headset, $5 for stem, $25 for labor.) or.....buy a quill adapter that allows me to use a threadless fork and stem for 15$. ( $10 for adapter, 5$ for a threadless stem.) Does anyone know anything about these adapters? How do they work? Do they hold up? Will this adapter actually allow me to mount a threadless fork on a threaded headset? I hear there are even adapters to go from 1" threaded, to 1 1/8" threadless, which would come in handy on my girlfriend's Raleigh M60. Is it worth saving $37, or should I "fork" out the extra money? (pun intended.) Any help would be greatly appreciated. Thanks...
05-12-06, 05:38 PM
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Originally Posted by manmountain
I have a 1990 Trek 8500. The 1996 rockshox judy xc that's on it is shot. My steertube is 1 1/8 in. and it is threaded. All decent suspension forks are threadless now, and I want to put a used judy tt on it. My options are to replace the headset and stem with a threadless model for 52$ (parts and labor). (Aprx-$20 for headset, $5 for stem, $25 for labor.) or.....buy a quill adapter that allows me to use a threadless fork and stem for 15$. ( $10 for adapter, 5$ for a threadless stem.) Does anyone know anything about these adapters? How do they work? Do they hold up? Will this adapter actually allow me to mount a threadless fork on a threaded headset? I hear there are even adapters to go from 1" threaded, to 1 1/8" threadless, which would come in handy on my girlfriend's Raleigh M60. Is it worth saving $37, or should I "fork" out the extra money? (pun intended.) Any help would be greatly appreciated. Thanks...
Your old stem won't fit the threadless fork, so you need a new stem too.
You don't need the quill adaptor with a threadless fork, the quill adaptor is to let you use a threadless-type stem with a threaded fork. In fact, the adaptor generally will not fit into a threadless fork.
Don't feel bad...lots of folks are confused by this stuff.
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05-12-06, 08:41 PM
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So let me get this straight. The adapter would only allow me to use a threadless stem with my threaded headset, but not a threadless fork? Let me ask you this then. Does $52 sound fair for a threadless headset and stem (including labor to install)? and also....is there a solution for my girlfriends bike? She has a 1" threaded steertube. Rst are the only threaded forks I can find, and I'm not really interested in them. If I replaced her headset and stem with a threadless model, are there any 1" threadless forks available, or is there an adapter that would allow a mount of a 1-1/8" fork on her bike? I've seen adapters that claim this is possible, but obviously I don't understand how it works. Thanks for your help.
05-12-06, 08:59 PM
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If you DON"T replace the 1" threaded headset on your girlfreinds bike, you can purchase a threaded fork from NYCbikes.com. He sells a Suntour 3000 for $29 plus shipping. I've purchased and installed this fork on an older MTB. Its not a great fork, but it is sturdy. If you have cantilever brakes, you will have to fashion your own bracket/brace to hold the brake cable. This is an inexpensive way to convert a bike to a suspension bike. Be aware that such a change alters the geometry of the bike by lifting the front of the top tube about 1.5 inches and will have an effect on handling.
EDIT: I re-read your post. If you don't like RST shocks because their 1" threaded version is low end, you will hate the Suntour. It too is a low end shock. FYI
EDIT: I re-read your post. If you don't like RST shocks because their 1" threaded version is low end, you will hate the Suntour. It too is a low end shock. FYI
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05-12-06, 09:20 PM
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Originally Posted by manmountain
So let me get this straight. The adapter would only allow me to use a threadless stem with my threaded headset, but not a threadless fork? Let me ask you this then. Does $52 sound fair for a threadless headset and stem (including labor to install)?
The quill adaptor connects a threadED fork to a stem made for a threadLESS headset.
$52 sounds very reasonable to me.
Originally Posted by manmountain
and also....is there a solution for my girlfriends bike? She has a 1" threaded steertube. Rst are the only threaded forks I can find, and I'm not really interested in them. If I replaced her headset and stem with a threadless model, are there any 1" threadless forks available, or is there an adapter that would allow a mount of a 1-1/8" fork on her bike? I've seen adapters that claim this is possible, but obviously I don't understand how it works. Thanks for your help.
The industry has pretty much settled down to two, and the other systems are going the way of the Betamax.
The viable systems are 1 1/8" threadless, and 1" threaded.
Converting your girlfriend's bike to 1" threadLESS would not be doing her a favor. There is no way to install a 1 1/8" fork in a frame made for a 1" fork.
If it ain't broke...
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05-13-06, 12:24 PM
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Thanks for the info. I'm going to go ahead and have a threadless headset and stem installed, so I can put on a used judy tt. I'm buying a used one for $50 so the total will be $102.00. My girlfriend is just going to have to settle for an rst. She doesn't ride that hard anyway. Do you have any suspension fork recommendations for a 1" threaded steertube? Thanks again.
