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

Can I switch from 26x1.75 wheels to something wider?

Notices
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.

Can I switch from 26x1.75 wheels to something wider?

Old 05-08-15, 09:55 AM
  #1  
itp78
Newbie
Thread Starter
 
Join Date: May 2015
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Can I switch from 26x1.75 wheels to something wider?

I have 26"x1.75" tires on my mountain bike. Can I switch to wider wheels and bigger tires? I still want 26" tires, but wider.
itp78 is offline  
Old 05-08-15, 10:02 AM
  #2  
FastJake
Constant tinkerer
 
FastJake's Avatar
 
Join Date: May 2010
Location: Wisconsin
Posts: 7,952
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 184 Post(s)
Liked 87 Times in 73 Posts
You probably don't need wider rims. How wide are your rims now? I bet you can easily go with a 2" or 2.2" wide tire. How wide do you want to do?
FastJake is offline  
Old 05-08-15, 10:47 AM
  #3  
nfmisso
Nigel
 
nfmisso's Avatar
 
Join Date: Mar 2011
Location: San Jose, CA
Posts: 2,991

Bikes: 1980s and 1990s steel: CyclePro, Nishiki, Schwinn, SR, Trek........

Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 384 Post(s)
Likes: 0
Liked 5 Times in 5 Posts
Yes.

YOU have to measure what you have, and how much clearance you have to make them larger.

On rim width, you need to measure the inside width - remove the tire, measure in the inside width. See: Velocity Wheels - Hand Made in USA The inside width is 25mm in this picture.

IF you have clearance, then the maximum tire width should be governed by the width of your rims, a good rule of thumb for MTB is no more than 2½ x the inside rim width (please note people exceed this rule of thumb quite often). So if you have Velocity Cliffhangers; that would be 25 x 2.5 = 62.5mm. So you'd be looking for 62-559 tires or narrower.
nfmisso is offline  
Old 05-08-15, 10:58 AM
  #4  
RubeRad
Keepin it Wheel
 
RubeRad's Avatar
 
Join Date: Aug 2011
Location: San Diego
Posts: 9,862

Bikes: Surly CrossCheck, Krampus

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 22 Post(s)
Liked 2,355 Times in 1,705 Posts
Almost certainly you can switch to wider tires. Just look at how much space around the tire in the front fork, and around the rear tire at the chainstays and seatstays.
RubeRad is offline  
Old 05-08-15, 11:04 AM
  #5  
Wilfred Laurier
Señor Member
 
Wilfred Laurier's Avatar
 
Join Date: Feb 2013
Posts: 5,063
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 647 Post(s)
Liked 283 Times in 207 Posts
The frame and fork limit the width of tire you can fit. Rim brakes can also make very wide tires difficult, especially on narrower rims.
As mentioned, there are guidelines for how wide a tire is acceptable to run on different widths of rims, but people vastly exceeded these recommendations all the time with no/little negative effects.

For example, I have a 22mm rear rim with a 2.1" (approx. 53mm) tire, and an 18mm wide front rim with a 2.4" (61mm) tire. The ratio of the tire width/rim width on the front is 3.4:1, which is considerably outside the 2.5:1 guideline mentioned above, and I have not had any problems with that tire in the two years I have run it like that.
Wilfred Laurier is offline  
Old 05-08-15, 02:10 PM
  #6  
Cross Creek
Senior Member
 
Cross Creek's Avatar
 
Join Date: Nov 2009
Location: Fayetteville, NC
Posts: 346

Bikes: 2013 Rivendell Sam, 1996 Bianchi Milano, 1994 Trek 820

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
Likes: 0
Liked 6 Times in 4 Posts
When checking for frame clearance, remember that a wider tire is also taller (bigger around). Rear brake bridge position is usually the limiting factor, but caliper brakes (on a road bike) could also be a limiting factor.
Cross Creek is offline  
Old 05-08-15, 02:17 PM
  #7  
khuon
DEADBEEF
 
khuon's Avatar
 
Join Date: Aug 2002
Location: Catching his breath alongside a road near Seattle, WA USA
Posts: 12,234

Bikes: 1999 K2 OzM, 2001 Aegis Aro Svelte

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 3 Times in 1 Post
Also be aware that especially for MTB tyres, the tread blocks can add substantially to the overall width. So for example, a 2.2" tyre with very thick and large treads may actually be effectively wider (and have a larger diameter) than what it says the tyre casing. You'll need to take that into account for chainstay, seatstay and fork clearance.
__________________
1999 K2 OzM 2001 Aegis Aro Svelte
"Be liberal in what you accept, and conservative in what you send." -- Jon Postel, RFC1122
khuon is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
FlashBazbo
Road Cycling
27
05-14-18 07:46 AM
PoorBob
Bicycle Mechanics
29
02-03-18 07:57 AM
hazben1
Road Cycling
21
09-13-17 03:46 PM
Syncmaster
Cyclocross and Gravelbiking (Recreational)
12
12-10-13 11:36 AM
Invisibl
Bicycle Mechanics
9
05-15-10 08:47 PM

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 - Do Not Sell My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.