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RTR Upgrade
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Image 1

TR4 Roll Over Bar (ROB) Competition, for use with the Revington TR fibreglass backlight frame. Rear hoop with backstays, removable diagonal RHD

Revington TR's competition bars are designed for those who desire the extra rigidity of a diagonal brace for competition or track day use. The bars are handed so that the strongest point is above the drivers head, this ROB has a diagonal running from top right to bottom left. The removable diagonal gives you the best of both worlds: the convenience of a non-obstructed rear view and better use of the rear shelf, for general road use and the safety of a diagonally braced ROB for competition. For those who have no need for a removable diagonal or wish to save some cost then the fixed diagonal is for you RTR9148-2 series.
This ROB kit includes a removable diagonal and has the option of a supplementary transverse harness bar (RTR9148HB). Many owners, whether using their car on the road or the track, will find the use of a harness both comfortable and reassuring. If you have chosen to fit a ROB it is generally considered better that in the unfortunate event of the car rolling over it is preferable to be firmly strapped in. A full harness will achieve this with much greater effect then a lap and diagonal arrangement. It is important to note that this ROB will not interfere with the operation of the hood on soft top cars.

The Revington TR ROB Backlight Frame Arrangement

Revington TR has produced an ingenious backlight and Surrey or hardtop arrangement with an integral roll over bar suitable for TR4, 4A, 5 and 250. This arrangement has been successfully fitted to many TR6's as well. See RTR7122 series for details of the full kit. These bars have been cleverly designed with sliding feet to accommodate different shapes and sizes of car; this will allow the main hoop of the ROB to fit neatly up inside the 'top hat' section of the backlight frame. Once the correct height has been established the sleeve is bolted firmly in place. This is a very tidy solution which results in the rearward vision not being impaired.
Note that as the wheel arches on TR4 s are round and those on TR4A-6 are flattened, we supply different backstay feet for the TR4 (letter A in the part number denotes this) and TR4A-6 (letter B in the part number denotes this)
Whilst intended for use with our fibreglass backlight frame, the basic ROB's can be bought separately so they can be fitted under the original aluminium backlight frame or other fibreglass backlight frames available on the market.
Unlike our fibreglass backlight frame for which these ROB's were designed, the original aluminium version has two bosses cast into the under face through which the hard top centre panel or surrey top would be attached. As the ROB will sit directly below these access holes the main hoop incorporates two hollow ferrules to enable the hard top panel or surrey top to be fastened through both the ROB and the backlight frame. Longer bolts are required to fit the hard top centre panel or surrey top.

This ROB includes:

  • Rear Hoop with sliding feet
  • 2 Angled Back Stays with sliding feet
  • RHD Removable Diagonal Cross Brace
RevingtonTR supply a full range of Roll Over Bars (ROB) and Full Roll Cages for the TR range. All ROB's allow the hood to be folded and unfolded unless specified otherwise. The following descriptions are used to describe the style of bars in our range.

ROAD BARS have no diagonal brace and have the option of an integral, transverse harness bar (RTR9148-1 series).

COMPETITION BARS are supplied with fixed (RTR9148-2 series) or removable (RTR9148-3 series) diagonal brace, and have the option of a transverse harness bar.

Please see below for other ROBs available for your car.

Our range of Roll Over Protection (ROP's) is extensive, to help you decide what is best for you we have compiled an information sheet in an easy to follow tablature format. Please see IS0040 here or via the 'Product Data Sheets' tab above.

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