Bike Forums - View Single Post - Wide 24" (520) tires

02-06-20 | 04:14 PM

#4

Russ Roth

Senior Member

Joined: Dec 2019

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From: South Shore of Long Island

Bikes: 2010 Carrera Volans, 2015 C-Dale Trail 2sl, 2017 Raleigh Rush Hour, 2017 Blue Proseccio, 1992 Giant Perigee, 80s Gitane Rallye Tandem

Quote:

Originally Posted by BlazingPedals

There are basically three versions of 24" wheel:
ISO 507 - used on kids' bikes and mountain bikes. This has the wider tires available.
ISO 520 - 'road' version of 24" generally limited to 1 1/8"
ISO 540 - wheel chairs. Narrow only - good luck finding anything other than 1".

All are rare in recumbents. Your fractional sizing implies either 520 or 540. Read your sidewall to be sure. If it's 520, the fattest tires I know of that are available are the Terry Tellus 24x1 1/4 or the Vee Rubber 24x1 3/8 Micro Knobby. With the 507 size, the big trouble might be finding a tire as narrow as 1 3/8".

I've got sizing down, unfortunately neither bike will easily fit a 507 sized wheel.
Appreciate the two options, my son runs the Vee tire in a 20 1 3/8 and it isn't as wide as they claim. Supposedly its a 35mm tire but kinda like the Maxxis cross tire we've got the tires don't measure out much wider then a 28mm.

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