Thinking of buying some Marzocchi 55 forks with a 1.5" steerer that a friend has for sale.I believe there are headsets available so I can fit the forks into the tapered headtube of my Orange five.
Could someone please recommend a headset for this,a link would be even better.Thanks.
i'm doing the same for a nukeproof mega, have same forks but no headset. is there a major difference between the main brands?
What are the specs of the curent head tube on the Orange?
i don't know the frame but it may be possible.
For the Mega it is a 44mm head tube so you will need this headset
http://www.chainreactioncycles.com/Models.aspx?ModelID=60616
The mega should accept the extended cups without modification. Having a look at the hope web site i can not see if they do a 44mm external top cup like nuke proof do.
[edit] it seems odd it is not advertised as they do the (H) cup which is the lower so I cant see why they would not do an upper version. May be worth an email to them to see if it is made. [/edit]
Here's the link for my bike,headset size should be on there..Frame is 20",if that makes any difference.
http://www.google.com/url?sa=t&source=web&cd=1&ved=0CDkQFjAA&url=http%3A%2F%2Fwww.orangebikes.co.uk%2Fbikes%2Farchive%2F2011%2Ffive_am%2F&ei=MTR4UKbxHqO70QXKkoHQDA&usg=AFQjCNECPAmU1KbARzv1gNJBC-SIbjBVcw&sig2=uqBb5JjU6kvHpORGbZOLOA
The zerostack headset is a 44mm headset so esentially you would want the same top half of the above nuke proof headset. However that headset has extended insertions so you may need to trim it down to get it to fit. I have a nuke proof lower cup cut down in my bike and it has been fine for the last year and a bit.
If you don't fancy modifying the nuke proof headset you could try emailing Hope and ask if they do a top cup version of their "H" lower cup.
You would be looking for a Top - 1.5" Traditional (43.95 dia) from them
S.H.I.S. : EC44/38.1
See document below for where i am getting these figures from
cheers for that rusty
You may have already found this out but you need a 44mm or proper 1.5" heat tube for 1.5" steerers.
If you have a tapered headtube then it is 1 1/8 or tapered only.
1.5" is 38.1mm. The ID of top of tapered headtubes is normally 40mm ish I think so you would need a headset with a cup thickness of ~1mm. Not going to happen.
edit: actually you may be in luck if the headtube is actually 44mm at the top. Just trying to find the specs of the Cane Creek headset and will be back...
Can't find anything for that headset but I think I may have been getting mixed up with integrated and the ID of the tapered head tube for zero stack taper will be 44mm and might be compatible with external cup top cups for 44mm headtubes. Obviously this will increase stack height so you will need to remove spacers etc but you could be in luck.
Does it come with a crown race?
Thanks for the answers but I'm still none the wiser,I've sent Hope an email asking the same question,,fingers crossed they'll send me an answer
Might be worth sending Orange a email as well to confirm the spec of the head tube. From the picture on that link you posted earlier it looks like it is Tapered zero stack being like either the Tapered/E2 or the Tapered Scott / Lapierre like in the hope link i posted earlier.
If that is the case and you currently have tapered forks in it then the only change would be to the top cup.
You will then need to establish whether Hope sell one like I described above or go for the nuke proof one and sell the bottom cup to someone looking to fit tapered forks in a strait zerostack headset.
[edit] From [url= http://singletrackworld.com/forum/topic/zero-stack-tapered-headset ]this thread[/url] it looks as though the head tube is tapered/e2 type [/edit]
Cheers Rusty,the headtube is tapered,rang Orange today and they said it couldn't be done.Looking at the link to the nukeproof,it looks like It's possible,I will send Orange a link to see if the headtube will fit,,it may be a surprise to them.Still haven't heard from Hope.
I got sent a replacement upper headset for my C456 due to the head tube being too short for some tapered forks. The C456 is tapered zero stack upper and this cup is external with a large bearing like in the bottom cup and then it has a reducer top cap with compression ring for the 1.125" steerer.
andyl
I would think that if you got a 1.5 crown race for that headset you would be able to fit straight 1.5 steerer forks.
This is much the same as what vermillion is looking for.
Now i don't know the exact design of the hope headsets but there doesn't seem to be much different between an upper and lower cups and bearings, to the naked eye they look exactly the same. I can't see it being that difficult to take the H lower cup and bearing and pairing it with a 1.5 crown race, 1.5 shims and a 1.5 top cap apart from the Hope logo being upside down.
I did think about a crown race but won't work as the bit on forks that the crown race attaches too is larger diameter than the rest of the steerer.
I would need a compression ring thingy off a 1.5" headset and machine the top cap. Have no desire to fit a 1.5" fork though, would need a new stem etc.
Sorry for the confusion "I would need a compression ring thingy off a 1.5" headset" that is what i meant by crown race, i kind of know them as upper and lower crown races but maybe i should call it a compression ring.
Reply received from Hope,they also said it can't be done and I'll be lucky if the steerer will even go through the headtube.
Looks like my first response was right then. 🙁
Bummer, just seen this.
I guess the taper must be manufactured different to a regular zerostack head tube.