Moving a Bertram Boat Trailer with the Optimover

Backing a big boat trailer into a tight slip or driveway is where the Optimover earns its keep. In this clip, the Optimover electric trailer dolly maneuvers a heavy Bertram into the perfect spot — one person, one remote, no drama. With dynamic braking and precise low-speed control, it handles boat trailers up to 7,700 lb. Pair it with the right clamp bracket for your tongue and you can position your boat exactly where you want it, every time.

		To Fit		Clamp Dimensions			Additional Notes
Clamp	Name	Tongue Height (mm)	Tongue Width (mm)	Total Width (mm)	Front Plate height x width (mm)	Width between U-bolts (mm)
OW-15	Large Compact Dual Clamp 150mm	150	50	160	150 x 140	140	Most common fit for RVs
OW-14	Small Compact Dual Clamp 100mm	100 to 130	50		150 x 140	140	Most Jayco RVs (not the all-terrain)
OW-6	Large Dual Clamp 150mm	150	50-150		237 x 200	195	Alternative to OW15 where tongue width is larger than 50mm. U-bolts from the back fit better.
OW-7	Small Dual Clamp 100mm	100	50-100		235 x 170	195	Ideal for boats (can go back-to-back with existing tongue jack)
OW-8	Medium Dual Clamp 130mm	130	50-130		237 x 200	195	Ideal for boats (can go back-to-back with existing tongue jack)
OW21	X Small Dual Clamp 75mm	75	50-75		235 x 170	195	Ideal for boats (can go back-to-back with existing tongue jack)
OW-18	Double Clamp Brack ALKO	NA	NA		150 x 140	NA	European & UK vans that use an Alko Chassis
OW-19	Optitec Offset Double Clamp	100 or 150	50-150		237 x 200 (150 mm plate) 235 x 170 (100 mm plate)	195	Used to get higher or lower (ie. in a carport) Raise or lower by 150mm Can be fitted to 150mm depth or 100mm depth
OW20	Zone RV Dual clamp						TBC

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