Octopus Rear Hub Nut

Octopus special rear hub nut (with18mm internal thread) for use with multi-splined layshaft X75 and the Octopus rear hub. This nut has a larger 18mm inner thread but still has a (standard Lambretta) 27mm external spanner size.
Please note that as there is no cone used on the Octopus hub, torque settings are less than a standard Lambretta. Tighten the nut to 85ft/lb - 115nm