Tapered Headset With Regular Fork?
02-09-12 | 11:51 AM
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Tapered Headset With Regular Fork?
So I'm thinking about purchasing a 2010 Giant Omnium (no fork) but it has integrated headset tapered 1-1/8" to 1-1/4". I'm not really familiar with tapered headsets so would I be able to use a 1-1/8" fork on this without any problems? Or would I need to get a different kind of fork or headset? Your answers would be greatly appreciated. Thank you.
02-09-12 | 12:08 PM
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From: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
No. The fork has to match the headset at both the crown bearing (1-1/4") and top bearing which fits 1-1/8". that's what's meant by a tapered headset.
If you're set on a standard 1-1/8" fork, you might find a special headset made for the application using the larger 1-1/4 lower bearing to fit the frame, but with a smaller 1-1/8" inner race (crown race) to match your fork. Or there might be an adapter shim made (haven't searched , so I don't know) made to enlarge a 1-1/8" fork's crown to the larger 1-1/4" nominal dimension.
Cane Creek is the major player in the tapered headset world, so you might start by checking their site or calling their customer service dept.
If you're set on a standard 1-1/8" fork, you might find a special headset made for the application using the larger 1-1/4 lower bearing to fit the frame, but with a smaller 1-1/8" inner race (crown race) to match your fork. Or there might be an adapter shim made (haven't searched , so I don't know) made to enlarge a 1-1/8" fork's crown to the larger 1-1/4" nominal dimension.
Cane Creek is the major player in the tapered headset world, so you might start by checking their site or calling their customer service dept.
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02-09-12 | 12:10 PM
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Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
AFAIK, you will need the OEM fork which will have a tapered (or stepped?) steerer to match the two different size headset bearings and the proper crown race. I don't believe there are any reducers that will let you use a 1-1/8" lower heasdet bearing so you could use a conventional fork. If you haven't bought the frame and the fork and headset aren't included, I'd pass.
02-09-12 | 12:14 PM
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The heatube on the Giant Omnium has a different is larger at the bottom to accept a larger (1-1/4") integrated (I assume) headset. They make reducers that would allow you to use a standard untapered fork and special headsets that include tapered headset reducers that will reduce the lower headset size.
Edit: Here is an example https://www.bike.com/item/cane-creek-...et-cup/L10294/
Edit: Here is an example https://www.bike.com/item/cane-creek-...et-cup/L10294/
Last edited by onespeedbiker; 02-09-12 at 12:29 PM.
02-09-12 | 02:51 PM
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From: Pittsburgh, PA
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
The heatube on the Giant Omnium has a different is larger at the bottom to accept a larger (1-1/4") integrated (I assume) headset. They make reducers that would allow you to use a standard untapered fork and special headsets that include tapered headset reducers that will reduce the lower headset size.
Edit: Here is an example https://www.bike.com/item/cane-creek-...et-cup/L10294/
Edit: Here is an example https://www.bike.com/item/cane-creek-...et-cup/L10294/
02-09-12 | 03:51 PM
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From: City of Brotherly Love
Bikes: Raleigh Companion, Nashbar Touring, Novara DiVano, Trek FX 7.1, Giant Upland
The heatube on the Giant Omnium has a different is larger at the bottom to accept a larger (1-1/4") integrated (I assume) headset. They make reducers that would allow you to use a standard untapered fork and special headsets that include tapered headset reducers that will reduce the lower headset size.
Edit: Here is an example https://www.bike.com/item/cane-creek-...et-cup/L10294/
Edit: Here is an example https://www.bike.com/item/cane-creek-...et-cup/L10294/
02-09-12 | 04:47 PM
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From: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
The OP is now aware of the issue and has enough info that he can do the needed research for an integrated version of the "adapter" headset.
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An ounce of diagnosis is worth a pound of cure.
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WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
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