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Old 04-12-12, 10:04 AM   #1
martinarlaw
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How to change from a quill stem to a thread-less ?

Hello everyone I'm new here :-) I have been trying to figure out how to do this for ages Basically I have Silverfox f525 with a quill stem (one that goes into the forks) I would like to change this to a threadless stem. I need to know if its possible on my bike? Do I need to change the headset and if so what size do I need. I believe my forks wont be long enough for the new stem to bolt on to so is there an adjuster I can buy? I'm soo confuzzled at the moment:eek : Thankyou for any help you can offer. Martin p.s Heere is a link to my (crap) bike :-) http://www.amazon.co.uk/Silverfox-Bl.../dp/B0015Y7KLC
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Old 04-12-12, 10:21 AM   #2
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it would likely cost most of what you already paid for the bike to do this correctly. why do you feel the need to do this?
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Old 04-12-12, 10:46 AM   #3
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If you only want to change the stem, look for a threadless adaptor and install your choice of stems:
http://www.nashbar.com/bikes/Product...45_-1___202439

It doesn't pencil out to change anything else to threadless (headset/forks). In fact, the change above is probably pushing it a bit on the level of bike.
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Old 04-12-12, 10:53 AM   #4
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+1 not worth it, even doing it the cheap way with the threadless adapter.

Why do you want to do this?
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Old 04-12-12, 11:46 AM   #5
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The stem adapter looks like a viable answer.

Why doesn't matter and everybody has their own idea of "worth it". The op never asked for an opinion on either, only how to accomplish the change.
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Old 04-12-12, 12:04 PM   #6
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The stem adapter looks like a viable answer.

Why doesn't matter and everybody has their own idea of "worth it". The op never asked for an opinion on either, only how to accomplish the change.

Stem adapter is a viable answer... if what he wants is just to be able to use a threadless stem.
Asking why he wants to do it may reveal additional answers, or may reveal that he won't accomplish what he thinks he would with a threadless stem.
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Old 04-12-12, 12:06 PM   #7
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you can either buy a threaded to threadless adapter and a threadless stem. or buy a new threadless fork, a complete threadless headset and threadless stem. if you go the second route make sure you buy the right size headset and fork (either 1 inch or 1 and 1/8 inch most likely).
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Old 04-12-12, 12:16 PM   #8
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Thankyou so much The reason for this is because I don't feel safe with a quill stem and it generally don't look good. This bike is all I can afford at the moment so I am going to upgrade to parts hydraulic discs etc probably a new bottom bracket handlebars aswell. The bike didn't cost me all that much But I dont mind spending a bit on it considering I can use the parts on a new build some time in the future. Thankyou again
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Old 04-12-12, 12:28 PM   #9
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Thankyou so much The reason for this is because I don't feel safe with a quill stem and it generally don't look good. This bike is all I can afford at the moment so I am going to upgrade to parts hydraulic discs etc probably a new bottom bracket handlebars aswell. The bike didn't cost me all that much But I dont mind spending a bit on it considering I can use the parts on a new build some time in the future. Thankyou again
OK now we're getting somewhere.

The adapter is basically a quill stem without the stem, so it's not any safer than a quill stem is - marginally less safe. Quill stems aren't unsafe though so I think you have a perception problem. The adapter will make it look kind of like a threadless stem but not exactly since you'll still have a threaded headset, and it will give you more options in rise and length for choosing other stems.

I can't think of any justification for putting hydraulic disk brakes on that bike, or your other upgrades either. I understand having a bond to your machine but if money is tight you're really better off spending it somewhere else or saving it for a bike that is equipped how you want it.

Last edited by DiabloScott; 04-12-12 at 12:44 PM.
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Old 04-12-12, 12:31 PM   #10
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The adapter is basically a quill stem without the stem, so it's not any safer than a quill stem is - marginally less safe.
Why?
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Old 04-12-12, 12:32 PM   #11
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If your looking to put Hydraulic discs on that, think again, going that you are in the UK, as it's an Amazon UK link, a set of Hydraulic discs will cost you 100-350 for a decent set, add to that the BB and handlebar, you are throwing money into something that just isn't worth it.

For the stem, and not being safe, we all managed to live with threaded headsets & quill stems until the mid 90's not sure what has changed so much that they are unsafe now?
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Old 04-12-12, 12:33 PM   #12
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Yeah I was thinking about going with the 2nd option but its not worth me spending tons on forks considering I wont be able to use them on a new frame in the future is there ?
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Old 04-12-12, 12:35 PM   #13
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Why?
One more clamping surface to fail.
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Old 04-12-12, 12:40 PM   #14
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here's another type adapter

http://www.somafab.com/archives/prod...apter-28-622-2
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Old 04-12-12, 12:40 PM   #15
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Hmm yeah good point jimc101 I can buy a pair of hope discs (the whole set) for 40 so thats not a problem as I allready have mechanical discs. And yes I understand that all it does is allow me to put a threadless stem on it thats what I want! I would like to change the headset and then use some kind of quill extender (as the forks wont be long enough) so I can bolt the threadless stem to it.
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Old 04-12-12, 12:42 PM   #16
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Why will it fail I'm not gonna go hard on it ?
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Old 04-12-12, 12:45 PM   #17
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Yeah I was thinking about going with the 2nd option but its not worth me spending tons on forks considering I wont be able to use them on a new frame in the future is there ?
No reason to do any of this unless the quill was just way off for your fit and you had a threadless stem already hanging around. I'd say put to rest your 'safety' concerns about the quill and get over the look. Take the money you would have spent on this (and other upgrades) and start a little account for your next bike.
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Old 04-12-12, 12:46 PM   #18
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Hmm yeah good point jimc101 I can buy a pair of hope discs (the whole set) for 40 so thats not a problem as I allready have mechanical discs. And yes I understand that all it does is allow me to put a threadless stem on it thats what I want! I would like to change the headset and then use some kind of quill extender (as the forks wont be long enough) so I can bolt the threadless stem to it.
You're missing a big picture. Your fork has a steerer that's cut and threaded for a threaded headset - an adapter lets you keep the same fork and headset but use a stem designed for a threadless setup. There's no adapter that'll let you use a threadless headset with your existing fork.

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Why will it fail I'm not gonna go hard on it ?
It probably wouldn't... but neither would your quill stem.
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Old 04-12-12, 12:47 PM   #19
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Hmm yeah good point jimc101 I can buy a pair of hope discs (the whole set) for 40 so thats not a problem as I allready have mechanical discs. And yes I understand that all it does is allow me to put a threadless stem on it thats what I want! I would like to change the headset and then use some kind of quill extender (as the forks wont be long enough) so I can bolt the threadless stem to it.
Why change the headset? (edit - diabloscott does a better job making the point...)
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Old 04-12-12, 12:48 PM   #20
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If you can get a set of Hope brakes for 40, great, but would be concerned about their condition, for any Hope brakes, for you would normally expect very little, if any change out of 300, if these are old ones, there can be issues with spares, as Hope don't support some of their older models now, and the stopping power of any old brake won't be comparable with any new brakes.
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Old 04-12-12, 12:55 PM   #21
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the quill to threadless plug things are pretty solid,
Aluminum with a hole down the middle for the Bolt.

Steel tube Quill stem raisers are another way, the tube jobs are cheap.
still need the threadless stem..

Like the jetsam that comes out of big box stores here,
I anticipate, since you have a BSO, Bicycle Shaped Object, just keep it as is.

and every time you think about upgrading it, put that money in a Jar ,
and in that way, save to get a decent Bike at a bike shop.

Last edited by fietsbob; 04-12-12 at 01:03 PM.
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Old 04-12-12, 12:55 PM   #22
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Yeah I am not planning to spend to much money on this one I am hoping for a kona stinky sometime in the future. This bike gets me from A2B. I am gonna go ahead with the stem adapter Then get a threadless stem which is shorter. I will spend no more thank 40 pounds on this. I just hate the quill stem I don't know why I just do!! Regardless of whether a quill stem is safe or not I don't feel safe with it so I will go ahead with the upgrade/change. Thanks guys is there anyway I can rep you on here ( Im new) ??
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Old 04-12-12, 12:58 PM   #23
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The hopes are from my friends kona shred but has some shimano saints now so they are just sitting there doing nothing he can probably get more they are about 4 years old and work pretty well
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Old 04-12-12, 01:00 PM   #24
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it will be fine
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Old 04-12-12, 01:07 PM   #25
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What do you think http://www.ebay.co.uk/itm/Tranz-X-St...#ht_500wt_1054
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