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Old 06-09-11, 08:25 AM   #1
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Salsa Delgado Cross rim, how narrow tire can I use?

On my new to me LHT is a set of 36h Delgado Cross. They are 22mm wide, will I be alright going with 28's on them? I have 35's on them now and they are not much wider than the rim. Want something a little lighter for when I am not carrying a load.
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Old 06-09-11, 09:18 AM   #2
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28mm tire on 22mm wide rim is fine
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Old 06-09-11, 09:28 AM   #3
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http://www.sheldonbrown.com/tire-sizing.html
http://www.schwalbetires.com/tech_info/tire_dimensions
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Old 06-09-11, 11:14 AM   #4
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So, according to these sites, 35's are the narrowest I should run. I thought the tires on there now looked only marginally wider than the rims. Maybe I should scour ebay and Craigslist for a nice set of lighter, narrower wheels for use day to day and save these for loaded use. May make the bike a little more lively.
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Old 06-10-11, 07:11 AM   #5
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Originally Posted by dannwilliams View Post
So, according to these sites, 35's are the narrowest I should run. I thought the tires on there now looked only marginally wider than the rims. Maybe I should scour ebay and Craigslist for a nice set of lighter, narrower wheels for use day to day and save these for loaded use. May make the bike a little more lively.
Sheldon's tire sizing is conservative and his chart is for inside width. I'd suspect that the width Salsa lists is for outside width. A 32 should still work and a 28 shouldn't have any problems although it might look a little odd.
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Old 06-10-11, 08:43 AM   #6
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Originally Posted by dannwilliams View Post
So, according to these sites, 35's are the narrowest I should run. I thought the tires on there now looked only marginally wider than the rims. Maybe I should scour ebay and Craigslist for a nice set of lighter, narrower wheels for use day to day and save these for loaded use. May make the bike a little more lively.
22mm-24mm outside width is pretty standard for touring rims. 19mm-20 for racing rims. Folks ride 23mm tires on 20mm wide rims, that's 1.5mm on either side. Putting a 28mm tire on a 22mm rim gives you 3mm on either side. I think the prevalence of narrow rims for mtn bikes got people used to very wide tires on narrow rims. For loaded touring I'd want more give in the sidewall than what a 28mm provides but I don't see a problem with it for unloaded riding on 22mm wide rim. Once you get out to 25mm wide rims you start to run out of protection for the rim on rough surfaces with a 28mm tire. When I weighed 145lbs and toured with 25lbs I rode a 28mm front and 32mm rear on 22mm wide rims. Most of my touring was on narrow 19mm rims with 28mm tires but it was all ultralight touring. Nowadays I have to ride with 32mm just for around town.
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Old 06-10-11, 11:17 AM   #7
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You can go very narrow. I'm using a Velocity A23 rim that is 23mm wide. It is designed for 23mm wide tires.

I would use a 700x25 on a Delgado Cross rim without concern.
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Old 06-10-11, 12:36 PM   #8
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I've got 28 mm Conti 4 Seasons on my Velocity Dyad rims, which are just as wide. No problems in 2 years of commuting, several thousand miles.
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