Notices
Cyclocross and Gravelbiking (Recreational) This has to be the most physically intense sport ever invented. It's high speed bicycle racing on a short off road course or riding the off pavement rides on gravel like : "Unbound Gravel". We also have a dedicated Racing forum for the Cyclocross Hard Core Racers.

Rim size vs tire size

Old 06-09-18, 08:35 AM
  #1  
Full Member
Thread Starter
 
Join Date: Oct 2010
Posts: 266
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 128 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Rim size vs tire size

Raleigh lists the rims on my RXM as "Weinmann Impulse TL Double Wall, 28mm wide". The Weinmann site shows this for the Impulse TL:


IMPULSE TL

IMPULSE TLSIZE:559(26"),584(650B),622(700C=29ER)TYRE:28C-38C,1.95-2.20ERD:521.05,546.15,584.55SPOKE HOLES:28H,32H,36HWEIGHT:416G,437G,464GJOINT:SLEEVEDVALVE TYPE:PRESTA,SCHRADERANO. COLOR:SILVER,BLACKRAL COLORSBRAKE:DISC BRAKEEYELETSINGLE EYELET


So first of all I'm not sure where Raleigh is getting "28mm wide" from -- I measured them at exactly 25mm, matching the Weinmann diagram.

And second, what size tires can I safely use here? Weinmann shows 28-38c, but they also say 1.9-2.20". I was hoping to go up to 40mm, if not 42mm if I'm not picky about mud clearance. Using tubes, by the way.
curttard is offline  
Old 06-09-18, 09:01 AM
  #2  
Senior Member
 
chas58's Avatar
 
Join Date: Jul 2010
Location: Michigan
Posts: 4,863

Bikes: too many of all kinds

Mentioned: 35 Post(s)
Tagged: 0 Thread(s)
Quoted: 1147 Post(s)
Liked 415 Times in 335 Posts
40mm is fine.

chas58 is offline  
Old 06-12-18, 12:41 PM
  #3  
Senior Member
 
shoota's Avatar
 
Join Date: Jun 2012
Location: Stillwater, OK
Posts: 8,128
Mentioned: 33 Post(s)
Tagged: 0 Thread(s)
Quoted: 1871 Post(s)
Liked 688 Times in 466 Posts
Originally Posted by curttard
Raleigh lists the rims on my RXM as "Weinmann Impulse TL Double Wall, 28mm wide". The Weinmann site shows this for the Impulse TL:


IMPULSE TL

IMPULSE TLSIZE:559(26"),584(650B),622(700C=29ER)TYRE:28C-38C,1.95-2.20ERD:521.05,546.15,584.55SPOKE HOLES:28H,32H,36HWEIGHT:416G,437G,464GJOINT:SLEEVEDVALVE TYPE:PRESTA,SCHRADERANO. COLOR:SILVER,BLACKRAL COLORSBRAKE:DISC BRAKEEYELETSINGLE EYELET


So first of all I'm not sure where Raleigh is getting "28mm wide" from -- I measured them at exactly 25mm, matching the Weinmann diagram.

And second, what size tires can I safely use here? Weinmann shows 28-38c, but they also say 1.9-2.20". I was hoping to go up to 40mm, if not 42mm if I'm not picky about mud clearance. Using tubes, by the way.
Dude you can go up to 50mm+ but are you sure you can fit a 40mm tire on your RXM? I thought the clearances were pretty tight on those frames.
__________________
2014 Cannondale SuperSix EVO 2
2019 Salsa Warbird
shoota is offline  
Old 06-12-18, 06:35 PM
  #4  
Full Member
Thread Starter
 
Join Date: Oct 2010
Posts: 266
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 128 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
I've got 38s on with room to spare. I can fit 40s no question, the only issue is how much clearance I need in the rear to feel comfortable. In the front, there is tons of room.

edit: In the rear, with Gravelkings measuring 38.5mm, I've got 5mm of clearance per side at the narrowest point (between the seatstays at the bridge). So I guess this is as big as I'll go. In the front, I've got at least 10mm per side at the narrowest part of the fork, so I could go way bigger if I wanted to go the mismatched tire route.

Last edited by curttard; 06-12-18 at 06:44 PM.
curttard is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Climachus
Classic & Vintage
6
05-13-15 09:45 AM
katit
Bicycle Mechanics
6
06-15-14 06:00 PM
turtletop
Bicycle Mechanics
3
05-12-14 08:01 AM
rsm42
Road Cycling
13
02-15-14 09:12 AM
diff
Singlespeed & Fixed Gear
5
08-06-12 10:03 AM

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.