Johnny Lomax

https://www.bikeforums.net/road-cycling/395708-fork-substitution-prior-road-accident.html

mtnbiker66

Are you looking for a new fork?

rankin116

I read the other thread and I don't get it.

mtnbiker66

Looks like you need a new for fer sure. Do you have a pic of the whole bike?

elf 232

It appears that the crown has removable bolts, so replace everything below the crown, if you are unable to remove the steerer tube from the head tube. Marzocchi has forks with similar construction, i would start there for replacement parts.

mtnbiker66

If that thing has taken a lick bad anough to bend it the whole thing should be replaced as well as the frame checked for cracks. Damn dude, your stupid advice is gonna get someone hurt.

elf 232

...come back down to reality, if he wants to keep the bike and cannot find replacement parts for the steerer he has to use the old one, common sense dictates an examination for cracks, the steerer tube is braced by the head tube, the point that the fork bent at, is a higher stress point than the steerer tube to crown connection (which is why that broke rather than the stanchions) the answer to a problem is not always to trash everything and start over. Its likely that the rest of the frame is fine (depending on material) (if it is Al i would begin looking for a new frame soon, after about 10 years aluminum frames develop stress fractures from common use)

Stop gunning for me, and act mature.

xcracer13

Steerer tubes aren't supposed to come out of the fork crown, and if yours doews you may want to send it back for warranty ASAP!

elf 232

Often with older bikes strength was slightly out of proportion, while stanchions may have been made of thinner steel, the steerer may have been excessively reinforced. You wont know until you look for yourself.

mtnbiker66

Stop posting stupid crap and get some idea of what you're talking about. There should be a disclaimer about clueless groms giving out advice.

How many older bikes have you owned?

elf 232

I didnt say steerer tube from crown, i said stanchions from crown.

elf 232

Find an article proving me wrong, on any of my points and I will humbly bow before you.

kenhill3

The reality is that pinch-bolted fork crowns are a thing of the past, and a dangerous one at that. Yes, the answer is not to always trash everything and start over, but in this case it IS the answer. I guarantee that the crown is toast.

victim

He's not clueless he is delusional. Much more dangerous.

elf 232

I was previously very interested in old roadies and other older bikes and looked into them veryyy deeply and talked to many owners and vintage trek riders, after i was looking over a few of my biker buddies older treks.

elf 232

Oh, i humbly submit your right.

Now, no more cracks from the peanut gallery.

elf 232

Honestly, there is no way to know until the poster examines the frame and steerer for hairline fractures with a magnifying glass... same thing every shop will tell you about fractures.

kenhill3

'Interested' and 'looking very deeply' do not count as experience. How many pinch-bolt crowned forks have you spent any amount of time riding?

mtnbiker66

I tried to hook you up with a compact pump so you wouldn't need to use your shock pump to pump your tires up but you declined.I really owe a big "I'm sorry" to XCracer and Profail. I should not have lumped them in with you. You are in a class by yourself.

I'm wondering, how long have you been riding?

elf 232

I do have an older fuji, (really old) and i talked with people who have much experience, more experience than i could ever hope to get alone at my age, i submit that does count.

Johnny Lomax

Well I really appreciate the level of knowledge and information being dished out here, but in fact I must agree with kenhill3. Thing is, if I am to put in a new fork, where can I find one that doesnt have the crown soldered onto the vertical tube?

Here are some new photos of the bike in question:

kenhill3

Incorrect. The poster is certainly not qualified to identify stress fracture or risers- unless he is an experienced and competent mechanic.

elf 232

Apparently not long enough for the old fogeys on this forum. Im really not sure yet what you have a problem with, you just keep saying how absurd my statements are about the applying subject...

I have not seen you give any take on how to solve this problem other than to trash the whole set-up. What in your opinion should this member do about his vintage bike?

mtnbiker66

I didn't say trash the whole setup. I would give a very close inspection and at the least find a new fork.

So how long have you been riding?

elf 232

I fully agree, take it to your LBS, have them examine the steerer, and see what they recomend. It absolutely could fractured to pieces when it is examined, but it shouldnt be judged by guesses of possible outcome.

My final word on this subject.