What range tires fit a rim?
03-10-20, 11:01 AM
#1
Senior Member
Thread Starter
What range tires fit a rim?
Hi y'all
How does one determine what range of tires width fit a given rim? More specifically, I'm trying to determine if DT SWISS G 1800 SPLINE 25 rims will accept 28mm tires.
Thanks
Dell Wilson
Madison, AL
How does one determine what range of tires width fit a given rim? More specifically, I'm trying to determine if DT SWISS G 1800 SPLINE 25 rims will accept 28mm tires.
Thanks
Dell Wilson
Madison, AL
03-10-20, 11:34 AM
#2
Senior Member
Join Date: Sep 2010
Location: Roswell, GA
Posts: 8,319
Bikes: '93 Trek 750, '92 Schwinn Crisscross, '93 Mongoose Alta
Mentioned: 30 Post(s)
Tagged: 0 Thread(s)
Quoted: 1438 Post(s)
Liked 1,092 Times
in
723 Posts
Here is a chart showing suggested tore sizes for given rim widths: https://www.sheldonbrown.com/tire-sizing.html#width Note that these are guidelines which are routinely exceeded without apparent problems.
Having said that, he specs on your rim show 24mm rim width which is pretty narrow for 28mm tires.
Having said that, he specs on your rim show 24mm rim width which is pretty narrow for 28mm tires.
03-10-20, 11:43 AM
#3
Señor Member
Join Date: Feb 2013
Posts: 5,066
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 649 Post(s)
Liked 292 Times
in
215 Posts
Not sure what dsbrantjr means by 24mm rims being 'pretty narrow' for 28mm tires - that's 4mm narrower than the tire width, 2mm per side. Perhaps he means 28mm is on the narrow side for 24mm wide rims?
In general, I try to have tires at least as wide at the outer width of the rim. Above that, it doesn't matter much. In the '80s and '90s we regularly used 17mm wide rims with 2.2" (~55mm) wide tires without problems. There are a few drawbacks, including increased lateral deflection and increased likelihood of pinch flats if the pressure is too low, but these were the rims and tires available and it worked fine.
In general, I try to have tires at least as wide at the outer width of the rim. Above that, it doesn't matter much. In the '80s and '90s we regularly used 17mm wide rims with 2.2" (~55mm) wide tires without problems. There are a few drawbacks, including increased lateral deflection and increased likelihood of pinch flats if the pressure is too low, but these were the rims and tires available and it worked fine.
Likes For Wilfred Laurier:
03-10-20, 12:03 PM
#4
Senior Member
A rough guideline is rim width x 1.5 for tire width. Have you measured the inside width of your rim? Got room to run 35/40 mm tires on your frame? That tire on that rim will be really low profile, subject to rim strikes and will probably need to run really high psi.
03-10-20, 12:14 PM
#5
I'm good to go!
Join Date: Jul 2017
Location: Mississippi
Posts: 14,953
Bikes: Tarmac Disc Comp Di2 - 2020
Mentioned: 51 Post(s)
Tagged: 0 Thread(s)
Quoted: 6178 Post(s)
Liked 4,795 Times
in
3,307 Posts
Go to the tire manufacturers site and many do.... somewhere.... have what size rims they recommend for a specific model of tire they make. Or just call or email them, many will answer.
Anything else is just a kludge that may of may not apply to the tire and rim you are considering. Sure it will give some guidance, but it's not definitive.
Anything else is just a kludge that may of may not apply to the tire and rim you are considering. Sure it will give some guidance, but it's not definitive.
03-10-20, 12:18 PM
#6
Senior Member
Here is a chart showing suggested tore sizes for given rim widths: https://www.sheldonbrown.com/tire-sizing.html#width Note that these are guidelines which are routinely exceeded without apparent problems.
Having said that, he specs on your rim show 24mm rim width which is pretty narrow for 28mm tires.
Having said that, he specs on your rim show 24mm rim width which is pretty narrow for 28mm tires.
Likes For melikebikey35:
03-10-20, 12:21 PM
#7
Senior Member
Join Date: Jul 2007
Location: South shore, L.I., NY
Posts: 6,859
Bikes: Flyxii FR322, Cannondale Topstone, Miyata City Liner, Specialized Chisel, Specialized Epic Evo
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 3221 Post(s)
Liked 2,049 Times
in
1,171 Posts
And not for nothing but 26" mt. bikes ran 50mm tires on 20mm wide rims for decades, at low pressures like 30 psi. They never rolled or came off.
Likes For Steve B.:
03-10-20, 12:37 PM
#8
Junior Member
28mm is relatively narrow when you consider all cycling types. I haven't come across a rim I wouldn't put 28mm tires on without even blinking. And like Steve said, mountain bike tires are VERY often quite a bit fatter when compared to the rim than any road bike tire. Heck, I have a set of cheapo 700c road bike rims running 29x2.1 tires on a frankenbike with no problem (not that I'd recommend it).
Likes For Mitkraft:
03-11-20, 01:10 AM
#9
Senior Member
Join Date: Jun 2002
Location: San Jose, CA
Posts: 3,676
Bikes: Too many bikes, too little time to ride
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 425 Post(s)
Liked 454 Times
in
313 Posts
In the '80s and '90s we regularly used 17mm wide rims with 2.2" (~55mm) wide tires without problems. There are a few drawbacks, including increased lateral deflection and increased likelihood of pinch flats if the pressure is too low, but these were the rims and tires available and it worked fine.
In terms of what's too narrow, I think people used to run 19-22mm clinchers on 13-14mm (inner width) rims.
