Serpent have inroduced a new version of the 2-speed housing for the Natrix 748. The bell has thicker outer material, but is lightened to the max to reduce rotational mass. The new bell ensures more stable performance even in long finals. The pressed in topquality bearing will add to the performance and durability. The SL6 XLI gearbox set is also updated with the new bell and the harder 2-speed shoes.