Idle headset question
10-09-11 | 07:19 AM
#1
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From: Melbourne, Oz
Bikes: https://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=152015&p=1404231
Idle headset question
10-09-11 | 07:26 AM
#2
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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 bike has an internal upper bearing, and the top cap works in a way similar to threadless systems to adjust the bearings.
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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.
10-09-11 | 07:27 AM
#3
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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!
About the only way I can think of is that there is a cartridge bearing that is a press fit into the very top of the headtube and the steerer is a press fit into the inner race of that bearing. The fits would have to be tight to keep the fork from dropping out of the bottom of the headtube if the front wheel is lifted.
Edit: I just saw FB's posting but i don't think the top cap in the photo is anything but a cover. The topcap of a threadless headset rotates with the fork and this one appears to rest on the stationary edge of the headtube. Also the cap is not at right angles to the steerer but it cocked several degrees relative to it as it looks parallel to the top tube.
Edit: I just saw FB's posting but i don't think the top cap in the photo is anything but a cover. The topcap of a threadless headset rotates with the fork and this one appears to rest on the stationary edge of the headtube. Also the cap is not at right angles to the steerer but it cocked several degrees relative to it as it looks parallel to the top tube.
Last edited by HillRider; 10-09-11 at 07:37 AM.
10-09-11 | 08:48 AM
#5
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From: Oakville Ontario
I suppose so, if you're the type that can pedal while standing on your head. Unless of course it was made for an orangutan.
10-09-11 | 07:31 PM
#11
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From: Appleton WI
Bikes: Several, mostly not name brands.
N.B. that's a Soviet-era "Tachyon" time trial bike. Nice catch!
