I've got a 27" wheel and it won't be true...
06-16-19, 09:31 AM
#1
Senior Member
Thread Starter
I've got a 27" wheel and it won't be true...
... according to the LBS mechanic. I took it in the other day and he said he wasn't able to get it round.
Here's a video:
It seems good laterally, but it has a couple low spots.
Is this anything to be concerned about? My inclination is just to keep riding on it.
This is a rear wheel on a mid 70's Dawes Galaxy. It is a Weinmann rim (aluminum, or at least non magnetic) on a Shimano large flange hub.
Here's a video:
It seems good laterally, but it has a couple low spots.
Is this anything to be concerned about? My inclination is just to keep riding on it.
This is a rear wheel on a mid 70's Dawes Galaxy. It is a Weinmann rim (aluminum, or at least non magnetic) on a Shimano large flange hub.
06-16-19, 09:35 AM
#2
Senior Member
Join Date: Jun 2010
Location: Medford MA
Posts: 2,089
Bikes: Ron Cooper touring, 1959 Jack Taylor 650b ladyback touring tandem, Vitus 979, Joe Bell painted Claud Butler Dalesman, Colin Laing curved tube tandem, heavily-Dilberted 1982 Trek 6xx, René Herse tandem
Mentioned: 80 Post(s)
Tagged: 0 Thread(s)
Quoted: 964 Post(s)
Liked 1,451 Times
in
723 Posts
The braking might be a little lumpy, but as long as the pads don't go into the tire, there's no reason not to just use it. I've used much worse for various amounts of time.
Likes For scarlson:
06-16-19, 09:42 AM
#3
Senior Member
I'm sure someone much smarter than me can speak more intelligently, but unless you are going to the Salt Flats to break a land speed record, take it for a ride and use your best judgement. You may never reach speeds to notice the imperfections. If you do - re-evaluate
06-16-19, 09:45 AM
#4
Senior Member
Thread Starter
I'm not terribly concerned about speed - I'm more concerned about catastrophic failure. I take it that isn't really an issue?
06-16-19, 10:03 AM
#5
Senior Member
In my non-expert opinion, it's all about speed. The wheel is sound until the speed is reached which reveals the imperfection. I don't know what speed that is. Your best judgement should be good enough. If you start feeling weirdness - it's too fast for that wheel. I think it's splitting hairs though.
06-16-19, 10:08 AM
#6
Catching Smallmouth
Join Date: Oct 2013
Location: In a boat
Posts: 590
Bikes: 1990 Specialized Sirrus Triple, 1985 Trek 460, 2005 Lemond Tourmalet, 1984 Schwinn LeTour 'Luxe, 1988 Trek 400T, 1985 Trek 450, 1997 Lemond Zurich, 1993 Diamond Back Apex, 1988 Schwinn Circuit, 1988 Schwinn Prologue, 1978 Trek TX700, Sannino
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 88 Post(s)
Liked 134 Times
in
79 Posts
A song popped into my head as soon as I read the title.
I wouldn't worry about that. You won't even feel it.
I wouldn't worry about that. You won't even feel it.
Likes For BradH:
06-16-19, 10:14 AM
#7
Very Senior Member
Join Date: Mar 2018
Location: Always on the Run
Posts: 1,211
Bikes: Giant Quasar & Fuji Roubaix
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 413 Post(s)
Liked 343 Times
in
244 Posts
I've got a worse wheel on the front of one of my bikes right now. It appears the rim is literally bent. I've gotten over 30 MPH coming down a hill with it and never noticed any wobble or wumping. It's annoying to watch though as you ride and it makes me want to tweak on it all the time. But as far as catastrophic failure, what are you expecting to happen?
06-16-19, 11:48 AM
#8
Extraordinary Magnitude
Join Date: Aug 2009
Location: Waukesha WI
Posts: 13,646
Bikes: 1978 Trek TX700; 1978/79 Trek 736; 1984 Specialized Stumpjumper Sport; 1984 Schwinn Voyageur SP; 1985 Trek 620; 1985 Trek 720; 1986 Trek 400 Elance; 1987 Schwinn High Sierra; 1990 Miyata 1000LT
Mentioned: 84 Post(s)
Tagged: 0 Thread(s)
Quoted: 2607 Post(s)
Liked 1,699 Times
in
935 Posts
I got a 27" wheel that wants to ball all day
I got a 27" wheel that stay drunk all the time
Hey, hey, what can I do?
I got a 27" wheel that stay drunk all the time
Hey, hey, what can I do?
__________________
*Recipient of the 2006 Time Magazine "Person Of The Year" Award*
Commence to jigglin’ huh?!?!
"But hey, always love to hear from opinionated amateurs." -says some guy to Mr. Marshall.
Commence to jigglin’ huh?!?!
"But hey, always love to hear from opinionated amateurs." -says some guy to Mr. Marshall.
Likes For The Golden Boy:
06-16-19, 12:06 PM
#9
Senior Member
Join Date: Aug 2017
Location: Central Io-way
Posts: 2,673
Bikes: LeMond Zurich, Giant Talon 29er
Mentioned: 17 Post(s)
Tagged: 0 Thread(s)
Quoted: 1221 Post(s)
Liked 628 Times
in
472 Posts
That's not bad at all, I wouldn't worry. Of course you could walk the town - keep a searchin' all around - lookin' for a street corner wheel.
Likes For GrainBrain:
Likes For PilotFishBob:
06-16-19, 12:57 PM
#11
Ride, Wrench, Swap, Race
Join Date: Jan 2010
Location: Northern California
Posts: 9,193
Bikes: Cheltenham-Pedersen racer, Boulder F/S Paris-Roubaix, Varsity racer, '52 Christophe, '62 Continental, '92 Merckx, '75 Limongi, '76 Presto, '72 Gitane SC, '71 Schwinn SS, etc.
Mentioned: 132 Post(s)
Tagged: 0 Thread(s)
Quoted: 1565 Post(s)
Liked 1,295 Times
in
865 Posts
Unless that rim is being made more round by means of uneven spoke tensions, It looks perfectly serviceable to me and I doubt that I would notice it ever.
In some cases, a mounted tire may either help or exacerbate a rim's out-of-round condition, depending on how the tire is positioned rotationally, so you could try moving the tire around if the out-of-round condition is worse at the tire tread than it is at the rim.
A rim's durability is hugely dependent on the uniformity of spoke tension and on the weight loading, so as the weight loading is increased then a higher standard of spoke tension uniformity should be applied. With some bent rims, a limit is reached here and the correct action would be to replace the rim, especially with single-walled or lighter weight rims and/or with lower spoke counts.
In some cases, a mounted tire may either help or exacerbate a rim's out-of-round condition, depending on how the tire is positioned rotationally, so you could try moving the tire around if the out-of-round condition is worse at the tire tread than it is at the rim.
A rim's durability is hugely dependent on the uniformity of spoke tension and on the weight loading, so as the weight loading is increased then a higher standard of spoke tension uniformity should be applied. With some bent rims, a limit is reached here and the correct action would be to replace the rim, especially with single-walled or lighter weight rims and/or with lower spoke counts.
