Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

dangers of assumption/ odd erd for 26x1 3/8 steel rim

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

dangers of assumption/ odd erd for 26x1 3/8 steel rim

Reply

Old 12-18-15, 05:27 PM
  #1  
winston61
Junior Member
Thread Starter
 
Join Date: Nov 2015
Posts: 7
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
dangers of assumption/ odd erd for 26x1 3/8 steel rim

The problem has resolved. A previous poster suggested trying a 26x1 3/8 tire on the new rim. Sure enough, too large. I measured the old rim I am replacing(clearly marked Araya 26x1 3/8) the outside diameter is 602mm, the smaller new rim measures 575mm. I was awake when I placed my order and I know what I selected. Never discount that vendors can make a mistake same as anyone.
winston61 is offline  
Reply With Quote
Old 12-18-15, 10:08 PM
  #2  
Andrew R Stewart 
Senior Member
 
Andrew R Stewart's Avatar
 
Join Date: Feb 2012
Location: Rochester, NY
Posts: 10,039

Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Raleigh Pro, Trek Cycle Cross, Mongoose tomac ATB, GT Bravado ATB, JCP Folder

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1220 Post(s)
Welcome to the world of bike size labeling. There are a number of rim bead seat diameters whose tires might be labeled as 26x1 3/8. The common 590 ISO diameter (most Eng., non Schwinn USA and many Asian 26 x 1 3/8) is about a 602mm rim outer diameter (not bead seat). the 576 outer rim diameter is close to what Southerland's manual lists as a 561 ISO diameter (575mm outer rim diameter). In over 40 years of doing this shop wrench stuff I can't remember ever dealing with this size. Southerlands lists this as a 25 x 1 3/8 BTW. At 573 outer rim diameter is the common 559 ISO (or mountain 26). Who knows what you really got but I suspect the 559. Which is the frequent error we see often. Andy.
Andrew R Stewart is offline  
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service