Sub-plate, for 1 1/8” tubes, American spacingThese sub-plates allow mounting of any of our engine mounting platforms to American style (2.75 inch spaced) frames. The sub-plate is CNC milled from 6061-T6 aluminum. It comes complete with our two bolt billet clamps and all hardware. FK 550 and FK 558 fit standard 1 1/8” tube diameter. The 1558 is machined to fit a 1 ¼” tube diameter.
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Sub-plate, for 1 1/8” tubes, International spacingThese sub-plates allow mounting of any of our engine mounting platforms to International style (3.5 inch spaced) frames. The sub-plate is CNC milled from 6061-T6 aluminum. It comes complete with our two bolt billet clamps and all hardware. 550 and 558 fit standard 1 1/8” tube diameter. The 1558 is machined to fit a 1 ¼” tube diameter.
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Sub-plate, for 1 ¼” tubes, International spacingThese sub-plates allow mounting of any of our engine mounting platforms to American style (2.75 inch spaced) or International style (3.5 inch spaced) frames. The sub-plate is CNC milled from 6061-T6 aluminum. It comes complete with our two bolt billet clamps and all hardware. 550 and 558 fit standard 1 1/8” tube diameter. The 1558 is machined to fit a 1 ¼” tube diameter.
