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#1
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Tubes marked wrong size...
Just got a couple of Kenda tubes from the LBS - in boxes marked 26x1-3/8, also marked that way on the tube itself - and they are clearly 27 inch tubes - there's no way they will fit in the tire (yes, definitely a 26, which fits correctly on the definitely 26 inch wheel) without folding. Anyone else seen this? Irritating, at the very least - bike was supposed to be up and running today, the old tube is shot and not reusable. -- Cats, coffee, chocolate...vices to live by |
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#2
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Tubes marked wrong size...
On Apr 24, 2:35*pm, Ecnerwal
wrote: Just got a couple of Kenda tubes from the LBS - in boxes marked 26x1-3/8, also marked that way on the tube itself - and they are clearly 27 inch tubes - there's no way they will fit in the tire (yes, definitely a 26, which fits correctly on the definitely 26 inch wheel) without folding. Anyone else seen this? Irritating, at the very least - bike was supposed to be up and running today, the old tube is shot and not reusable. -- Cats, coffee, chocolate...vices to live by I've had some tubes act like they would only go in folded, but by inflating them a bit first and making sure to work the tube out into the casing as I worked my way around the wheel, it went in without folding. Others go in with no hint of folding. Don't know if that is the case with yours now. Joseph |
#3
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Tubes marked wrong size...
Ecnerwal wrote:
Just got a couple of Kenda tubes from the LBS - in boxes marked 26x1-3/8, also marked that way on the tube itself - and they are clearly 27 inch tubes - there's no way they will fit in the tire (yes, definitely a 26, which fits correctly on the definitely 26 inch wheel) without folding. Anyone else seen this? Irritating, at the very least - bike was supposed to be up and running today, the old tube is shot and not reusable. 26 x 1 3/8 wheels are not the same size as mountain bike 26" wheels 590mm or 597mm vs 559mm diameter. Perhaps this is the problem. Reference http://sheldonbrown.com/tire-sizing.html Marcus |
#4
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Tubes marked wrong size...
In article
, " wrote: I've had some tubes act like they would only go in folded, but by inflating them a bit first and making sure to work the tube out into the casing as I worked my way around the wheel, it went in without folding. Others go in with no hint of folding. Don't know if that is the case with yours now. Joseph That's what I thought at first - but when lightly inflated and worked in with great care, still very much too long. I had bought two and have returned one. I left the box for the other in the garage, and will either return it later or use it on a 27 inch, if I have a 27 inch that needs one in the pile of bikes to fix up - perhaps I'll take a picture of it installed in a 26 inch tire and put it up somewhere. It's almost comical when it's not screwing up plans to get a bike on the road now (then it's both infuriating and puzzling). Followup: returned to LBS#1 - they tell me to just stuff the tube in folded. 30 years of cautions against pinching tubes cause me to think they are delusional and full of it. They claim to have a better-fitting tube in Presta (I'm a Schrader user by preference and long habit). I take the precaution of trying it (and hey, it's Presta, it costs almost twice as much!) before leaving the store - too long as well, though not by as much. I go to LBS#2, they have a tube (in Schrader) that actually fits correctly, as I expect one to, without folding. LBS#2 may become my new default LBS. Bike is on road. -- Cats, coffee, chocolate...vices to live by |
#5
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Tubes marked wrong size...
On Apr 24, 11:30 am, Marcus Coles wrote:
Ecnerwal wrote: Just got a couple of Kenda tubes from the LBS - in boxes marked 26x1-3/8, also marked that way on the tube itself - and they are clearly 27 inch tubes - there's no way they will fit in the tire (yes, definitely a 26, which fits correctly on the definitely 26 inch wheel) without folding. Anyone else seen this? Irritating, at the very least - bike was supposed to be up and running today, the old tube is shot and not reusable. 26 x 1 3/8 wheels are not the same size as mountain bike 26" wheels 590mm or 597mm vs 559mm diameter. Perhaps this is the problem. Yup. the dweebs at LBS #1 are the problem. Bull**** flows like sewage at bike shops, just recently I've heard, "nice wheels ya built, but the spokes should be looser to act as suspension." and "We don't have that Schwinn oddball size." in reference to a 1/2" pedal. |
#6
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Tubes marked wrong size...
In article ,
Marcus Coles wrote: 26 x 1 3/8 wheels are not the same size as mountain bike 26" wheels 590mm or 597mm vs 559mm diameter. LBS#1 handed that size (26x1-3/8) tube to my wife (along with the tire) when I asked her to drop in and pick up one 26x1.5 tire and 2 26x1.5 tubes. Price of gas is silly and she was going to a store next door to them anyway. They sell the tire, but don't have a correct size tube to fit it? And their solution is to fold up the excess length? Not encouraging. The Presta tube they had was in fact, marked 26x1.5-1.75 - and was still too long by a significant, though lesser, amount. LBS#2 wins. -- Cats, coffee, chocolate...vices to live by |
#7
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Tubes marked wrong size...
In article ,
Ecnerwal wrote: In article , Marcus Coles wrote: 26 x 1 3/8 wheels are not the same size as mountain bike 26" wheels 590mm or 597mm vs 559mm diameter. LBS#1 handed that size (26x1-3/8) tube to my wife (along with the tire) when I asked her to drop in and pick up one 26x1.5 tire and 2 26x1.5 tubes. Price of gas is silly and she was going to a store next door to them anyway. They sell the tire, but don't have a correct size tube to fit it? And their solution is to fold up the excess length? Not encouraging. The Presta tube they had was in fact, marked 26x1.5-1.75 - and was still too long by a significant, though lesser, amount. LBS#2 wins. Look on the tire. What is the ISO mm reading. Does the writing read 622 _anywhere_? How about 559? 597? Come on, we're trying to help. Any number between 559 an 635. -- Michael Press |
#8
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Tubes marked wrong size...
In article ,
Michael Press wrote: Look on the tire. What is the ISO mm reading. The tire size chart mentioned by Marcus already made all things clear including what bozos LBS#1 were being. http://sheldonbrown.com/tire-sizing.html LBS#1, being asked for a 26x1.5 tire and two 26x1.5 tubes, sold a 559 tire with tubes appropriate (per Mr. Brown's chart) for about a 590-597 rim. I suspect there might reasonably be enough slop in the tube to fit either of those sizes well enough. But not to fit a 559. Their solution for the extra (roughly 3.8 inches, per calculation - a significant chunk, per observation) tube was to fold it up inside the tire. Their second try at a tube was marked in a manner that should have fit, but was also too long (but not by as much). LBS#2 had a tube marked the same as LBS#1's second try, of a different brand, which actually fits. Done. 3x more difficult that it should have been, but done. -- Cats, coffee, chocolate...vices to live by |
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