440/450-21 LUCAS Olympic Tread Blackwall
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Originally made by the Olympic Tire Co in the 20’s & 30’s this tread pattern is even more popular today because of its beautiful design and eye-catching sidewall.


Balloon tires became available in 1925. They were 21 in × 4.5 in (440/450-21’s) all around. 440/450-21 LUCAS Olympic Tread BW. Balloon tires were closer in design to today's tires, with steel wires reinforcing the tire bead, making lower pressure possible – typically 35 psi (240 kPa) – giving a softer ride. The old nomenclature for tire size changed from measuring the outer diameter to measuring the rim diameter so 21 in (530 mm) (rim diameter) × 4.5 in (110 mm) (tire width) wheels has about the same outer diameter as 30 in (76 cm) clincher tires.

Wheels were wooden artillery wheels, with steel welded-spoke wheels available in 1926 and 1927.

30.13" O.D.

4.50" Section Width

3.03" Tread Width 

  • Manufacturer: LUCAS

440/450-21 LUCAS Olympic Tread Blackwall

Price: $99.00
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