The Exotek Tekno EB48 and NB48 2.2 Aluminum HD Front Spindle Hubs are an optional upgrade intended for use on the Tekno EB48 2.2 or NB48 2.2 platforms. Made from heavy-duty (HD) 7075 alloy, these precision-machined spindle hubs are built to deliver consistent suspension performance and reliable handling under the most demanding conditions.