5 mm for the vacuum connection — the mini seal at the impulse fitting

Tools for installation included

Rotax DD2 should use part no 7276 for a perfect fit

Tachometer cable

testing and engine tuning applications

Visir Bell SE077 3 mm DSAF ML Irridium Smoke New 5 mm for the vacuumBell SE077 3 mm DSAF visor is a premium original accessory from Bell Racing, specifically designed for HP77 helmets. It provides outstanding visibility and comfort thanks to its advanced Double Screen Anti Fog (DSAF) construction, effectively reducing fogging in demanding conditions. Manufactured in optical grade material with a durable 3 mm thickness, this visor ensures both safety and long lasting performance. It is available in a wide range of