This is the 18067th most frequent Polish word.
żużlowego
"Żużlowego" means "speedway" or "related to speedway" in English.
The word 'żużlowego' here functions as an adjective describing the type of track, specifically a speedway (żużlowy) track.
Tor żużlowego jest przygotowany do zawodów.
The speedway track is prepared for the competition.
'Żużlowego' is used as an adjective modifying 'zawodnika' (rider), specifying that the rider is one participating in speedway.
Sprzęt żużlowego zawodnika musi być zawsze w idealnym stanie.
A speedway rider's equipment must always be in perfect condition.
In this case, 'żużlowego' is an adjective modifying 'klubu' (club), indicating that the club specializes in speedway activities.