Panaracer GravelKing SK 27,5" x 1,9" on 27"
#1
Senior Member
Thread Starter
Join Date: Nov 2003
Location: Soviet of Oregon or Pensacola FL
Posts: 5,342
Bikes: Still have a few left!
Mentioned: 48 Post(s)
Tagged: 0 Thread(s)
Quoted: 466 Post(s)
Liked 527 Times
in
266 Posts
Panaracer GravelKing SK 27,5" x 1,9" on 27"
Haven't shopped new 27" tires for a long time. My Super Course with 27" concave weinmanns needs tires. Unfamiliar with the size: Panaracer Grave lKing SK 27,5" x 1,9" Knobby Tread Tire, Black & Brown Sidewall
Really like my 700c Gravel Kings on other bikes, Question is, can these mount on the 27" rims of my Super Course?
Really like my 700c Gravel Kings on other bikes, Question is, can these mount on the 27" rims of my Super Course?
#3
Mr. Anachronism
Join Date: Jan 2013
Location: Somewhere west of Tobie's
Posts: 2,087
Bikes: fillet-brazed Chicago Schwinns, and some other stuff
Mentioned: 29 Post(s)
Tagged: 0 Thread(s)
Quoted: 526 Post(s)
Liked 256 Times
in
165 Posts
The 26"/27"/27.5"/28"/29" nomenclature is pretty obsolete, as it's supposed to refer to the OUTSIDE tire diameter. These days the ISO number (559/622/630) is the only one that you can depend on.
__________________
"My only true wisdom is in knowing I have none" -Socrates
"My only true wisdom is in knowing I have none" -Socrates
#4
Partially Sane.
Join Date: Jan 2016
Location: Sunny Sacramento.
Posts: 3,559
Bikes: Soma Saga, pre-disc
Mentioned: 22 Post(s)
Tagged: 0 Thread(s)
Quoted: 972 Post(s)
Likes: 0
Liked 643 Times
in
468 Posts
Aha, I’ve been wondering about that. I’ve been seeing 27.5 mentioned, a lot more recently, and have been curious, but didn’t want to ask, because I might sound like an idjit. 😁😉 I think I’ll stick with the more common sizes, until someone proves these oddball sizes have any real benefits. 🤔
#5
Senior Member
Join Date: May 2011
Location: Seattle WA
Posts: 2,841
Bikes: 2009 Handsome Devil, 1987 Trek 520 Cirrus, 1978 Motobecane Grand Touring, 1987 Nishiki Cresta GT, 1989 Specialized Allez Former bikes; 1986 Miyata Trail Runner, 1979 Miyata 912, 2011 VO Rando, 1999 Cannondale R800, 1986 Schwinn Passage
Mentioned: 72 Post(s)
Tagged: 0 Thread(s)
Quoted: 796 Post(s)
Liked 522 Times
in
367 Posts
as others have said look for the ISO sizes, tires sizes can be confusing ISO helps compare apples to apples also for 27" tires check out the dedicated thread here
#6
verktyg
Join Date: Jul 2006
Location: SF Bay Area
Posts: 4,030
Bikes: Current favorites: 1988 Peugeot Birraritz, 1984 Gitane Super Corsa, 1980s DeRosa, 1981 Bianchi Campione Del Mondo, 1992 Paramount OS, 1988 Colnago Technos, 1985 RalieghUSA SBDU Team Pro
Mentioned: 207 Post(s)
Tagged: 0 Thread(s)
Quoted: 1036 Post(s)
Liked 1,237 Times
in
653 Posts
Not sounding like a noobee
Aha, I’ve been wondering about that. I’ve been seeing 27.5 mentioned, a lot more recently, and have been curious, but didn’t want to ask, because I might sound like an idjit. 😁😉 I think I’ll stick with the more common sizes, until someone proves these oddball sizes have any real benefits. 🤔
For example: "I've been around bikes for a long time but I'm not familiar with this fill in the blank. Likelihood of getting an intelligent respectful answer are pretty good.
The old saying in school was, "The only stupid question was the one not asked"...
verktyg
__________________
Don't believe everything you think! History is written by those who weren't there....
Chas. ;-)
Don't believe everything you think! History is written by those who weren't there....
Chas. ;-)
Likes For verktyg:
#7
Senior Member
Join Date: Jun 2019
Location: Portland Oregon
Posts: 996
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 457 Post(s)
Liked 462 Times
in
270 Posts
This!
My mountain biking buddies get really confused when I tell them that my 27" rims are larger than their "29er" rims.
Based on how arbitrary MTB rim/wheel size designations are its obvious that MTBers have all hit their head too many times ;-)
My mountain biking buddies get really confused when I tell them that my 27" rims are larger than their "29er" rims.
Based on how arbitrary MTB rim/wheel size designations are its obvious that MTBers have all hit their head too many times ;-)
Last edited by jackbombay; 01-10-20 at 01:12 AM.
#8
Senior Member
It's a good thing we have inaccurate inflated diameter proxy marketing gibberish to keep things simple. Imagine the chaos and confusion if wheels and tires were sold by something complicated like bead seat diameter!
27.5" refers to a bead seat diameter of 584mm. 27" refers to a larger bead seat diameter of 630mm. Similarly, 700c refers to a bead seat diameter of 622mm. The bead seat diameter of a rim and tire must match exactly for the combination to work correctly: even though 27" and 700c rims are only 8mm different, their tires are not interchangeable. Similarly, you cannot mount 27.5" tires on a 27" rim, because 27.5" rims are smaller than 27" rims.
Haven't shopped new 27" tires for a long time. My Super Course with 27" concave weinmanns needs tires. Unfamiliar with the size: Panaracer Grave lKing SK 27,5" x 1,9" Knobby Tread Tire, Black & Brown Sidewall
Really like my 700c Gravel Kings on other bikes, Question is, can these mount on the 27" rims of my Super Course?
Really like my 700c Gravel Kings on other bikes, Question is, can these mount on the 27" rims of my Super Course?
#9
Senior Member
Join Date: Nov 2005
Location: NW Ohio
Posts: 3,410
Bikes: 1984 Miyata 310, 1986 Schwinn Sierra, 2011 Jamis Quest, 1980 Peugeot TH8 Tandem, 1992 Performance Parabola, 1987 Ross Mt. Hood, 1988 Schwinn LeTour, 1988 Trek 400T, 1981 Fuji S12-S LTD, 197? FW Evans
Mentioned: 24 Post(s)
Tagged: 0 Thread(s)
Quoted: 524 Post(s)
Liked 977 Times
in
509 Posts
The only reason they chose 27.5 was because it was in between the common 26 inch mountain bike size and the 29er size. 27.5 was supposed to be a compromise between too big and too small. Like most bike tire common size names, it didn't have anything to do with actual measurements.
#10
Half way there
Join Date: Sep 2015
Location: North Carolina
Posts: 2,955
Bikes: Many, and the list changes frequently
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 985 Post(s)
Liked 879 Times
in
526 Posts
You need to be concerned about tire width as well. There is no way that 1.9 (50mm) tires will work on your Super Course. The widest I've been able to fit on my 1972 Super Course were 35mm, and they were very close to the chainstays. At present, I have Panaracer Pasela 27 x1 1/4 (32-630) on the bike. I like them a lot. The choices for 27" tires are not extensive.
#11
Senior Member
Join Date: May 2011
Location: Seattle WA
Posts: 2,841
Bikes: 2009 Handsome Devil, 1987 Trek 520 Cirrus, 1978 Motobecane Grand Touring, 1987 Nishiki Cresta GT, 1989 Specialized Allez Former bikes; 1986 Miyata Trail Runner, 1979 Miyata 912, 2011 VO Rando, 1999 Cannondale R800, 1986 Schwinn Passage
Mentioned: 72 Post(s)
Tagged: 0 Thread(s)
Quoted: 796 Post(s)
Liked 522 Times
in
367 Posts
You need to be concerned about tire width as well. There is no way that 1.9 (50mm) tires will work on your Super Course. The widest I've been able to fit on my 1972 Super Course were 35mm, and they were very close to the chainstays. At present, I have Panaracer Pasela 27 x1 1/4 (32-630) on the bike. I like them a lot. The choices for 27" tires are not extensive.
#12
Senior Member
Thread Starter
Join Date: Nov 2003
Location: Soviet of Oregon or Pensacola FL
Posts: 5,342
Bikes: Still have a few left!
Mentioned: 48 Post(s)
Tagged: 0 Thread(s)
Quoted: 466 Post(s)
Liked 527 Times
in
266 Posts
Thanks all, I know of ISO sizes, but see ads on CL and eBay that don't use them. Old enough to not worry about what people think. Was going to go with the Pasela Panaracers, but hoped there might be something fatter that would fit. Don