MegaSack DRAW - This year's winner is user - rgwb
We will be in touch
Am I right in saying that it doesn't really matter if it's too deep and doesn't totally fit in the frame?
It's that Nukeproof 22mm one, I've managed to get it in about 15mm before it hit the lip, and now it aint coming back out, its basically now part of the frame, I can still fit a stem on it though.
Do you guys reckon it's "all right" to use. I personally can't see a problem with it, but thought I'd fish for other opinions.
personally i would want that thing all the way in. not 2/3 of the way in. given that is how its supposed to be.
Remove the headset cup and ream the head tube properly. A headset cup only half in the frame is not a good idea.
I wouldn't ride it like that for sure. What I did was get the headset turned down until it fitted the end of the insertion.
Heat the frame a bit and it should come back out.
You've gone with a deep insertion headset cup. Not all frames are designed to take these and it may well be that the frame's head tube doesn't so much need reaming as it needs a regular insertion headset. (Sam's suggests isn't neccessarily the wrong it's just unlikely to be the solution as you highlight the cup is hitting a lip inside the head tube.)
You should check with the frame manufacturer if in doubt, or just remove it and see if reaming will make any difference or not.
With a deep insertion headset, all of this is something I would have a bike shop do. My experience of deep insertion headsets is that they are a bitch to get in (I've witnessed a bike shop break a Park Headsetr Presss trying) and while not impossible to get out, they need a certain amount of confidence!
I have confidence, I mean, a lot of headsets do only go 12mm in, so If mines 15-16mm in, I don't think there would be a problem! I'm trying to figure out why in terms of physics it would be a problem... it's basically just an extended frame. And it's in there pretty damn tight, plus the forks are going through the middle of it. So I can't really see what could go wrong 😛
Teh shoulder is not butted up to the top / bottom of the headtube. Your weight could drive it in further and split the headtube, it could rock and fret in the headtube as you are applying sideways / fore and aft leverage to it
I'd imagine you're more likely to damage the headtube by not having the headset fully inserted
[i]I can't really see what could go wrong[/i]
maybe nothing will, and they're you're teeth if it does.
Personally, I'd want the right thing in there and not just a bodge.
You're also assuming that the 'stop' inside the tube is parallel with the top of the tube where the top cup rests?
Yeah, my teeth are pretty important, I think I'm gunna grind the cup down at the top so it inserts fully then.
Most headsets do only insert 12mm and so most frames are only made to accomodate that amount of insertion.
I'd also imagine that there is a fair bit of load that is transfered from the headset cup to the headtube where the flat horizontal faces sit together. With the cup sitting out by a few mm I'd guess it wouldn't last long before the headset cup cracked. Depending on how big the lip is you might find the headset cup sinking slowly aswell making the headset continually come loose. Deep cup headsets should only really be used to fix oval headtubes I reckon.
Problem is.. I can't get it out.
(nor can the bike shop) Think I've ****ed it.
put the cup in a vice and use the frame as a lever to twist it out enough that you can get a tool on the lip of the cup inside the headtube.
[edit] what did the bike shop say about usign it like this?
Heat the head tube up and use a decent tool to withdraw it
^^what they said. Maybe some plusgas too
Heat the head tube up and use a decent tool to withdraw it
Can you do that with aluminium frames that have already been heat treated?
The bike shop just went ahead and put it in, it's their fault I can't get it out. I did ask em to stick it in though. It would of been nice they checked first.
The bike shop is ran by "noobs" so they wouldn't have anything clever to tell me. They just said "your choice".
I'm going to get the bench grinder out and narrow it up so It'll slot in.
Would you mind posting the name of the bike shop so we can avoid using them!
You go to an LBS because you're looking to mitigatge for your own lack of professional expertise, not so some noob who knows less than you can **** up your frame! Please tell me these are employees rather than the owner saying this to you!
Really, the bike shop should know better, that's why you pay a premium for their service! If you paid them and have the receipt for it, then basically they could be in breach of contract, i.e. the contract you took out when you asked them fit the headset. You could very convincingly argue that as the experts they should have known it was the wrong headset and advised you against it.
geetee - so long as you don't get it too hot - boiling water will do no harm and will expand ally a suprising amount - the difference between bearings that are hard to shif than bearings that just slip out.
If the shop put it in its their responsibility to sort it out.
I kind of embarressed to say which shop it was, lets just say it's not actually a bike shop, but more of a car shop... that should be easy enough for you all to guess 😛
Whereabouts are you? someone might be able to help / reccomend someone to help
really the shop that ****ed it should sort it
Oxford
Take it into Beeline and see what they say then. Not Halfords (my guess at where it was done first)
Beeline is the most over-priced store I've ever seen! Although they usually know what they are doing.
[i]Although they usually know what they are doing. [/i]
Given the state your frame's in this is the important bit...
hot water and vice as prevuisly stated will work wonders.
dont get the hot water on the headset cup though.
Don't rely on just tipping hot water over it.
Boil a big pan of water while holding the frame in it.
lol, wwaswas. That cracked me up.
Halfords said they'll get the headset back out for me. I'm going to machine it down a few mm so it actually fits ^^ then get em to put it back in, hopefully they wont break the frame getting it out.
Headsets are cheap, relative to a new frame. Why not buy one that fits?
(Once you get that one out of there obviously...)
Given Halfords messed this up in the first place are you really thinking of giving them the jobof putting it back in? I would accept the increased cost and take to a "proper" bike shop to sort out.
It's one of those things, I like what I've bought, because I like the design. I don't want another design. But I can make it fit.
I agree Lunge, but I've already exceeded my budget in building this bike, I'm going to have to grit my teeth and hope for the best.