Tyre Supply for 4 Racing Series in Japan from 2025
S1K has been newly adopted as the designated brand in 4 kart series of “MZ Senior.”
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Introduction of New Karting Tyre for Leisure Karts
Firstline Ltd. hereby introduces the additional size of its kart tyre, “S1K” to its lineup.
Tyre Supply for a Famous Endurance Event “K-TAI”
S1K has been newly adopted as one of the designated brands in the famous sports kart event, “2024 Motegi KART…
Tyre Supply for Endurance Series in Japan
S1K has been newly adopted as one of the designated brands in the sports kart series, “Enjoy Sport Kart Series”.
Tyre Supply for Endurance Series in Japan
S1K has been newly adopted as one of the designated brands in the sports kart series, “Club Panther 2&4 Series”.
Tyre Supply for Endurance Series in Japan
S1K has been newly adopted as one of the designated brands in the sports kart series “Sportkart Endurance at APG”.
Introduction of New Karting Tyres for Leisure Karts
Firstline Ltd. hereby introduces the 1st items, “S1K” and “S1L” to its lineup.
New Kart Tyre Brand “NEXXIVE”
“NEXXIVE” is a coined word, combining “next” and “-ive.” It expresses our desire and stance to aim for next stage…