| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 1268.1 | | MEMORY::GOODWIN | in a spasm of lucidity... | Tue Aug 01 1989 09:13 | 13 |
| re: .0
See if you can find a copy of "THE BICYCLE WHEEL" by Jobst Brandt. The
book has a section on the uses of High and Low Flange hubs. The book is
about $10.00 and your local bike shop should be able to get it.
From what I recall the High-Flange makes a stiffer wheel due to shorter
spoke length and is commonly used for track wheels. I'll look it up
tonight and see what it says.
Paul
|
| 1268.2 | HIGH FLANGE HUBS ARE OUT...FOR NOW | AKOV11::FULLER | | Tue Aug 01 1989 09:50 | 7 |
| Colorado cyclist had a real special on Campy Record high flange
hubs built up.
My first Campy hubs were high flanged, circa 1974. The rear hub
cracked circa 1985.
steve
|
| 1268.3 | curious phenomenon | SUSHI::KMACDONALD | Is there life after drywall? | Tue Aug 01 1989 10:51 | 9 |
| Not sure why hi-flange hubs aren't popular ... they supposedly make
stiffer wheels, but a lot of folks buy lo-flange then go to a lot of
effort to make the wheels stiffer with bizarre lacing patterns, etc.
Recently acquired my first bike with l-f's, but it's hard to say what's
bike and what's wheels as I haven't done any wheel-swapping. Everything
else is Campag h-f, some of my hubs still going after 15 years or
more...
ken
|
| 1268.4 | Not for stiffness | TALLIS::JBELL | Ceci n'est pas une pipe. | | Tue Aug 01 1989 11:52 | 10 |
| The original idea of high flange was to make the wheel stiffer.
This doesn't really work, because the tire is about 100 times as
compliant as the spokes in any reasonably well built wheel.
High flange hubs are heavier too.
They are used for hubs with more spokes (40 or 48 spoke wheels)
because the holes would be too close to each other.
-Jeff Bell
|
| 1268.5 | For Stiffness & Maintainability ! | AQUA::OCONNOR | Buddy, can ya spare $1.2 mill for a Ferrari F-40? | Tue Aug 01 1989 12:54 | 8 |
| I know High flange Hubs are/were stiffer I have a pair and there
is a difference esp in the front. I had a friend back in my racing
days you went out bought himself a pair of low flange hubs and then
had them tied and soldered to improve stiffness. Another supposed
reason for having high flange hubs was to allow the rider to change
spokes with 13-17 freewheels still on the bike!
Joe
|
| 1268.6 | $.02 | NOVA::FISHER | Rdb/VMS Dinosaur | Tue Aug 01 1989 13:11 | 6 |
| I have some low flange 40 hole hubs.
High flange hubs for changing spokes with 13-17 freewheels is not
a problem I can relate too. :-)
ed
|
| 1268.7 | lateral rigidity is where it's at | TOOK::R_WOODBURY | why silver bullets!?!? ... | Thu Aug 10 1989 17:26 | 16 |
| re: .4, et al
> The original idea of high flange was to make the wheel stiffer.
> This doesn't really work, because the tire is about 100 times as
> compliant as the spokes in any reasonably well built wheel.
What about *lateral* rigidity? That's where the high flange wheel
really wins: in high speed manuevers, turns, etc. I've seen low flange
wheels which collapsed - sideways - becauses of that kind of stress.
> High flange hubs are heavier too.
They may be heavier, but the greater disadvantage is that they "cup"
the wind, causing greater wind resistance: a couple of grams of dead
weight won't slow you down that much.
|
| 1268.8 | | WLDWST::POLLARD | | Thu Sep 07 1989 13:02 | 7 |
| In case anyone ever comes back to read this...
Brandt's conclusion is that the extra rigidity of a high-flange
wheel is irrelevant to anything except a tandem and MAYBE a loaded
touring single. If this is general concensus among people who
manufacture bikes, it would explain the disappearance of high-flange
hubs over the last 10 years.
|