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Old 01-27-09, 10:37 PM   #1
Recycle
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Max tire width for 18 mm wide rim

I have a LHT with Alex Adventurer 26'' wheels. The rim width is 18mm. The bike came with 38mm (1.5 inch) tires, and there is room in the frame for 2.1 inch tires. But what is the widest tire that will fit on the rim?

There is conflicting info between Schwalbe's site (28mm to 50mm according to ETRTO)
http://www.schwalbetires.com/tech_info/tire_dimensions

and Sheldon Brown's site (25mm - 40mm)
http://www.sheldonbrown.com/tire_sizing.html

Is anyone running 50mm (1.9 to 2 inch) tires on 18mm rims?

Last edited by Recycle; 01-27-09 at 11:52 PM.
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Old 01-27-09, 10:46 PM   #2
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my 18s came with 45s, stock. Same rim.
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Old 01-27-09, 11:37 PM   #3
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if the manufacture thinks their 50mm/2.0" tyres are ok for 17mm rims, then by all means go ahead with it.
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Old 01-27-09, 11:51 PM   #4
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Yup. If it blows off and makes you crash, you can sue them!
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Old 01-28-09, 12:03 AM   #5
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not all tyre side walls are made the same, so to say
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Old 02-06-09, 12:12 AM   #6
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I just stumbled across confirmation that a 2.1" tire will fit on the Alex Adventurer 26" wheel from the FAQ page at Alex web site http://www.alexrims.com/ One FAQ reads:
Quote:
Q:I have the Adventurer 26"-545g, ERD 540.3mm, ETRTO 559X18mm rims which came with 1.9" wide tires. My question is, I want to get a pair of 2.1" wide tires. Can I do it or do I have to get different rims in order to fit wider tires. It is not a must for me to get wider tires, but it is a look that I desire. Thanks in advanced.

A:The average tire size for MTB is 1.5"~2.0". But if you have a tire in 2.1" that is also acceptable for our ADVENTURER
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