Improve the pull and the response of your X-MAX 125 straight away with the Polini Hi-Speed. Designed for the Euro 5/Euro 5+ models, it gives smoother, stronger acceleration in everyday riding and from a standstill. What the kit includes A set of 19 X 17 – 8.2 g rollers (material: a nylon & aramid fibre compound) A chromed & ground pin A Hi-Speed variator Compatibility Yamaha X-MAX 125 4V Euro 5: 2021–2024 Yamaha X-MAX / Tech Max 125 Euro 5+: 2025