ISO 630 27 inch
This is the size used on most older 10- and 12-speed road bikes made in the 60s, 70s and 80s. Not to be confused with the "new" ISO 584 / 27.5" name. NOTE: These will fit old 27" Schwinns. Schwinn did not make a proprietary 27" size.
Highly-regarded touring/rough stuff/city tire. Features reflective sidewalls for visibility. With puncture resistance belt. Wire bead.
Basic, good quality replacement tire. Black with gum sidewall 90 psi Wire bead.
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