Powerhobby 7075 Aluminum Roto Lock Motor Mount FOR Hobao VTE VTE2 GTB Universal fit for motors with 25, 25.4 and 30mm motor mount spacing and up to 58mm diameter Pinion / Spur adjustments: 30mm: 72 to 90 total tooth count 25mm: 66 to 94 total tooth count Notes: Hobao VTE2 top brace will require two 3mm holes Recommend to use with Center Spools only