Minimum width clincher rim for 35-38 mm gravel tires

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LouisN
Posts: 3523
Joined: Mon Feb 19, 2007 3:44 am
Location: Canada

by LouisN

Looking for some clincher rims for my wife's gravel bike.
I'll use 35 mm tires for now, and eventuallt try 38 mm if the frameset clears them.
Questions is: What's the minimum width acceptable for rims, to have a decent fit ?
I could use some Mavic Aksium if ever...

Thanks guys, happy riding :beerchug:

Louis :)

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emotive
Posts: 615
Joined: Tue Nov 01, 2016 10:40 am
Location: Melbourne, Australia

by emotive

Anything from 15mm to 25mm inner width will be fine. 20mm and up will corner on tarmac with less roll.

NickJHP
Posts: 462
Joined: Wed Feb 14, 2018 2:22 am
Location: Canberra, Australia

by NickJHP

My touring bike has been using 37/38mm tyres on Mavic MA2 (13mm internal width) rims for many years. Less than the nominal ideal rim width, but the handling with that combination is fine - I've crossed both the Alps and Pyrenees with that setup.

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pdlpsher1
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Joined: Thu Jul 19, 2012 6:09 pm
Location: CO

by pdlpsher1

By 'clincher' I take it you meant rim-brake rims. Rim-brake rims are typically narrower than disk rims. They will be fine, but you should find the widest (internal width) rim possible for a decent fit. I have some 40mm gravel tires on 25mm and 20mm (internal width) rims. The 25mm is definitely the best fit but the 20mm rim works too despite looking very ugly (tire is shaped like a light bulb).

Hexsense
Posts: 3288
Joined: Wed Dec 30, 2015 12:41 am
Location: USA

by Hexsense

19mm internal width is the minimum I'd go for for gravel wheelset.
I already feel the difference between in tire stablity at low pressure with 19mm and 26mm internal width with 38mm tires. So, I wouldn't like anything narrower than that.

USAisDOA
Posts: 39
Joined: Fri May 21, 2021 3:39 pm

by USAisDOA

NickJHP wrote:
Sun May 23, 2021 1:11 am
My touring bike has been using 37/38mm tyres on Mavic MA2 (13mm internal width) rims for many years. Less than the nominal ideal rim width, but the handling with that combination is fine - I've crossed both the Alps and Pyrenees with that setup.
Ah.. a voice of experience. :thumbup:
I believe almost nothing I read and 'hear'

I believe roughly half of what I see with my own eyes.. in person.

I do not carbon.. anything


:nospamhere:

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MikeD
Posts: 1008
Joined: Thu Dec 11, 2014 9:55 pm

by MikeD

Check the ETRTO rim table.

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