Clamp Size Guide

Optitec recommends a heavy duty double clamp for moving trailers and caravans over 1500kg.   There are numerous clamps available to fit different size drawbars. 

Finding your perfect clamp:

Step 1.  Locate the best position on your drawbar to place the bracket; the Optimover is effective anywhere on the front drawbar where space allows. 

Step 2.  Measure the drawbar  height.

Step 3.  Measure the drawbar width.

Step 4.  Use the size guide below to select your bracket.

 

To Fit

Clamp Dimensions

Additional Notes

Clamp

Name

Drawbar Height (mm) 

DrawbarWidth (mm)

Total Width
(mm)

Front Plate height x width
(mm) 

Width between U-bolts (mm)

  

OW-15

Large Compact Duel Clamp 150mm

150

50

160

150 x 140

140

Most common fit for caravans

OW-14

Small Compact Duel Clamp 100mm

100 to 130

50

  

150 x 140

140

Most Jayco caravans (not the all-terrain) 

OW-6

Large Duel Clamp 150mm

150 

50-150

  

237 x 200

195

Alternative to OW15 where drawbar width is larger than 50mm.

U-bolts from the back fit better.

OW-7

Small Duel Clamp 100mm

100 

50-100

  

235 x 170

195

Ideal for boats (can go back-to-back with existing jockey wheel)

OW-8

Medium Duel Clamp 130mm

130

50-130

  

237 x 200

195

Ideal for boats (can go back-to-back with existing jockey wheel)

OW21

X Small Duel Clamp 75mm

75 

50-75

  

235 x 170

195

Ideal for boats (can go back-to-back with existing jockey wheel)

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