--- description: What does GBX mean in Formula 1? Learn what the F1 gearbox abbreviation means, what GBX components are and how the rules changed. title: "GBX Meaning in F1: What Does GBX Stand For?" image: https://www.f1-fansite.com/wp-content/uploads/2026/06/1986-Engeland-Lola-Ford-01.jpg --- [Skip to main content](#content) ![Change language](https://www.f1-fansite.com/wp-content/themes/f1fansite/images/flags-svg/gb.svg?v=2) [![F1-Fansite.com](https://www.f1-fansite.com/wp-content/themes/f1fansite/images/logo-mob.png)](https://www.f1-fansite.com/) ![](https://www.f1-fansite.com/wp-content/uploads/2026/07/2026-spa-header.jpg) [![Try F1 on Apple TV for 7 days](https://www.f1-fansite.com/wp-content/uploads/2026/07/F1-Launch_Refresh2_Static_Affiliate_728x90_US-EN.jpg)](https://www.f1-fansite.com/f1-on-apple-tv/) [![F1-Fansite.com](https://www.f1-fansite.com/wp-content/themes/f1fansite/images/logo.png)](https://www.f1-fansite.com/) [Sign in](https://www.f1-fansite.com/login/) - [Home](https://www.f1-fansite.com/) - [F1 News](https://www.f1-fansite.com/f1-news/) - [F1 2026](https://www.f1-fansite.com/2026-formula-1-season/) - [F1 2027](https://www.f1-fansite.com/2027-formula-1-season/) - [All Time](https://www.f1-fansite.com/all-time-f1-archive/) - [F1 Stats](https://www.f1-fansite.com/f1-statistics/) - [Photos](https://www.f1-fansite.com/f1-wallpapers/) - [F1 Fans](https://www.f1-fansite.com/fans/) - [F1 Quiz](https://www.f1-fansite.com/f1-quizzes/) - [F1 Tickets](https://www.f1-fansite.com/f1-tickets/) - [F1 Merchandise](https://www.f1-fansite.com/f1-merchandise/) - Add to home screen [Sign in](https://www.f1-fansite.com/login/) [Next session![Autodromo Hermanos Rodriguez](https://www.f1-fansite.com/wp-content/themes/f1fansite/images/flags-svg/mx.svg?v=2) MX Mexico City Grand Prix · FP100d 00h 00m 00s](https://www.f1-fansite.com/f1-calendar/mexico-city-grand-prix/) [Next session![Autodromo Hermanos Rodriguez](https://www.f1-fansite.com/wp-content/themes/f1fansite/images/flags-svg/mx.svg?v=2) MX Mexico City Grand Prix · FP100d 00h 00m 00s](https://www.f1-fansite.com/f1-calendar/mexico-city-grand-prix/) # What Does GBX Mean in Formula 1? [![Lola-Ford engine during the 1986 British F1 Grand Prix](https://www.f1-fansite.com/wp-content/uploads/2026/06/1986-Engeland-Lola-Ford-01-330x218.jpg)](https://www.f1-fansite.com/wp-content/uploads/2026/06/1986-Engeland-Lola-Ford-01.jpg) Lola-Ford engine with gearbox during the 1986 British F1 Grand Prix **GBX is short for gearbox. In F1 component usage tables, GBX usually refers specifically to the gearbox case and cassette.** The FIA called this component group **GBX C&C**, meaning *Gearbox Case and Cassette*. The gearbox is part of an F1 car's transmission and transfers power from the power unit to the rear wheels. The gearbox case houses the transmission components, while the cassette contains much of the internal gear mechanism. ### What does GBX mean in F1 component tables? On F1-Fansite.com, **GBX shows how many gearbox case and cassette units a driver has used during a Formula 1 season**. Under the regulations used in 2024, gearbox components were classed as **Restricted-Number Components (RNCs)**. With 24 races on the calendar, each driver was allowed to use five gearbox cases and cassettes. Using an additional unit resulted in a five-place grid penalty. ([api.fia.com](https://api.fia.com/sites/default/files/fia_2024_formula_1_sporting_regulations_-_issue_7_-_2024-07-31.pdf?utm_source=chatgpt.com "2024 FORMULA ONE SPORTING REGULATIONS")) ### Are F1 gearbox changes still limited? **Not from the 2026 Formula 1 season.** The current 2026 FIA Sporting Regulations no longer include gearbox components in the seasonal restricted-component allocation. Article B8 now contains car and power unit limitations, but no equivalent seasonal GBX limit. ([fia.com](https://www.fia.com/system/files/documents/fia_2026_f1_regulations_-_section_b_sporting_-_iss_08_-_2026-08-05_7.pdf "FIA 2026 F1 Regulations - Section B [Sporting] - Iss 08 - 2026-08-05")) This means a gearbox change in 2026 does not automatically trigger a grid penalty simply because a driver has exceeded a seasonal GBX allocation. ### GBX meaning in short **GBX = Gearbox** **F1-Fansite usage:** Gearbox case and cassette **Official FIA 2024 terminology:** GBX C&C **2024 allocation:** 5 per driver **2026 allocation:** No seasonal GBX limit Last updated: 3 Sep 2026, 16:15 ### Join our FREE weekly F1 Newsletter Enter your email address & confirm your subscription You've already signed up, Thanks! 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