Road Bike, Cycling Forums banner
1 - 20 of 33 Posts

·
Cranky Old Bastard
Joined
·
2,337 Posts
The spacers look good but have you considered that you have too many?

Most forks list a maximum steerer tube height above the headset. Yours looks to be too long, too high.
It's dangerous; you're putting a lot of bending stress on that steerer and it might snap.

If you flip your stem you could put your bars in the same place and be able to shorten the steerer a little more, but even that might not be enough. You may have to get one of those +17 or +25 degree stems to get that bar height with a safe steerer tube.

I'm not being harsh or giving you grief, just trying to help you be safe.

Edit: I think most companies recommend no more than 40mm of spacers but obviously the fewer the better.
 

·
Banned
Joined
·
443 Posts
Discussion Starter · #4 ·
What are the spacers made from?
Why do you have all those spacers, then have your stem flipped? You could have the same handlebar position without flipping the stem and use less spacers.
I have a new uncut fork and I'm determining the height that I want. We'll see how it goes. I think there may be quite a bit of torque on that steerer so it will probably be cut down in the future.

The spacers are sch40 pvc pipe
 

·
Registered
Joined
·
14,713 Posts
I agree with Randy, though I think he means "steerer" where he says "head tube".

You did an impressive job, though the whole setup reminds me again how ugly (IMO) threadless stems are compared to the old quill stems. I'm curious why you switched it. I assume it's because you needed a new fork?
 

·
Cranky Old Bastard
Joined
·
2,337 Posts
I agree with Randy, though I think he means "steerer" where he says "head tube".
Thanks JC, you're right, I'll do the edit.

OP, again, sorry to rain on your parade, but you made the situation worse by using plastic. It can bend, allow the steerer to flex and will wear on the bottom and change the preload on the bearings.

Good headset spacers are snug-fitting Al or carbon.
 

·
Banned
Joined
·
443 Posts
Discussion Starter · #8 ·
I'm not being harsh or giving you grief, just trying to help you be safe.

Edit: I think most companies recommend no more than 40mm of spacers but obviously the fewer the better.
I don't think you are being harsh but I agree it looks unsafe. It has 55mm of spacers so it's got to be cut down for sure.
 

·
Banned
Joined
·
443 Posts
Discussion Starter · #9 ·
Not a good idea. Plastic is compressive. You might not keep consistent pressure on the bearings.

What size did you use?
1-1/4" PVC has a 1.380" ID. Too big.
1" PVC has a 1.049" ID. Too small.
Yeah I didn't know what roll the spacers play in this I was thinking they were cosmetic only. Not the case I guess.

The pvc I used were the couplers for 1" pvc which have an ID of 1 1/8 which is what most steerers are today. I have a 1" steerer with a converter to 1 1/8 to accept the stem.
 

·
Banned
Joined
·
443 Posts
Discussion Starter · #10 ·
You did an impressive job, though the whole setup reminds me again how ugly (IMO) threadless stems are compared to the old quill stems. I'm curious why you switched it. I assume it's because you needed a new fork?
I like the changeability of the stem and more options that are readily available with these stems as well.
 

·
Registered
Joined
·
23,036 Posts
Yeah I didn't know what roll the spacers play in this I was thinking they were cosmetic only. Not the case I guess.
Nope, not the case. The spacers are used to adjust the preload on the bearings.

The pvc I used were the couplers for 1" pvc which have an ID of 1 1/8 which is what most steerers are today. I have a 1" steerer with a converter to 1 1/8 to accept the stem.
Now I'm confused. Is your steerer tube (the fork) 1" or 1 1/8".

Did you use one of these? If so then yes, the spacers are just cosmetic. In fact you don't even need spacers.
 

·
25.806975801127
Joined
·
9,790 Posts
Nope, not the case. The spacers are used to adjust the preload on the bearings.

Now I'm confused. Is your steerer tube (the fork) 1" or 1 1/8".

Did you use one of these? If so then yes, the spacers are just cosmetic. In fact you don't even need spacers.

My brain hurts....
 

·
Cranky Old Bastard
Joined
·
2,337 Posts
Did you use one of these? If so then yes, the spacers are just cosmetic. In fact you don't even need spacers.
Yes, that changes everything! If you've got that extension, forget everything I said! :D
 

·
Banned
Joined
·
443 Posts
Discussion Starter · #14 ·
Yes that is what I used. I have a 1" threaded steerer converted to 1 1/8. If you look closely at the bottom of the shims you will see the headset is the old style and has a screw on shim to preload the headset bearings.

So I can keep the pvc shims then?
 

·
Registered
Joined
·
23,036 Posts
Yes that is what I used. I have a 1" threaded steerer converted to 1 1/8. If you look closely at the bottom of the shims you will see the headset is the old style and has a screw on shim to preload the headset bearings.

So I can keep the pvc shims then?
Ahhh now it makes sense. It was hard to tell in the original photo.
You can keep the pvc spacers. No harm will come to you. Except perhaps by the fashion police.
 

·
Registered
Joined
·
14,713 Posts
So you still have a threaded headset? Then, as the others have said, your spacers are non-functional. So no worries.

Though now I'm really puzzled at the reason for the conversion, since you didn't get the one functional advantage of the threadless headset (simple bearing adjustment).

Oh well, different tastes, I guess.

The colors are nice :)
 

·
Banned
Joined
·
443 Posts
Discussion Starter · #17 ·
So you still have a threaded headset? Then, as the others have said, your spacers are non-functional. So no worries.

Though now I'm really puzzled at the reason for the conversion, since you didn't get the one functional advantage of the threadless headset (simple bearing adjustment).

Oh well, different tastes, I guess.

The colors are nice :)

Yeah that's one thing I didn't get. Also trying to keeping that nut that keeps the bearing and fork in place from getting mangled up when removing it is a tough job. The threadless steerer eliminates that.
 

·
Banned
Joined
·
443 Posts
Discussion Starter · #18 ·
Ahhh now it makes sense. It was hard to tell in the original photo.
You can keep the pvc spacers. No harm will come to you. Except perhaps by the fashion police.
Ok you guys know it's pvc but I shouldn't have told you so let's keep it our little secret and they'll never know.
 

·
Registered
Joined
·
23,036 Posts
Ok you guys know it's pvc but I shouldn't have told you so let's keep it our little secret and they'll never know.
Post #2. Question #1: "What are the spacers made from?"

While the material wasn't known, it was obvious something wasn't normal. As well as the number of spacers and color scheme. The fashion police monitor stuff like that.
 
1 - 20 of 33 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top