后轮轴螺母(M38*1.5*15*45) — compatible motorcycles

This genuine OEM part (OE 5010-38150-YH01) fits the following 6 motorcycles:

• 2025 350RR 单摇臂版
• 2023 321RR
• 2024 321RR 新玩家
• 2024 321RR-S
• 2023 321R 街车版
• 2023 525X