2025 SKUSA RuleBook Current Version: 4/17/2025
	Engine Spec: IAME SKUSA Shifter Engine (SSE) Current Version: 2/25/2025
	Engine Spec: IAME X30 Current Version: 2/25/2025
	Engine Spec: IAME KA100 Current Version: 2/25/2025
	Engine Spec: IAME Mini Swift Current Version: 2/25/2025
	Engine Spec: IAME M1 Bambino Current Version: 5/25/2025 Supplemental Rules Current Version: 5/30/2023HS-325A Carb Specs Current Version: 5/25/2025
	Local Option FZ Regulations Current Version: 5/1/2025 PKC Round 4 Supplemental Current Version: 5/1/2025
	Legacy Spec Honda Shifter Rules Current Version: 01/01/2022

Rulebook Updates & Clarifications

The updates below generally contain revisions that will be included in the next rulebook update, but didn't warrant an update to the rulebook on their own. When in doubt, please refer to the date the update and the rulebook were published.