Universal 15 Degree Tribar Extension Wedges


Designed by Revolver these neat Tribar Extension Wedges (or angled shims) are the simplest solution to convert a factory stock horizontal Tribar position into the increasingly popular aero “Mantis” TT/Tri position.

Attention! Compatible with M5 bolting systems only. Will not work with M6 bolts.

CNC machined Aluminium alloy, Black Anodised.

Supplied as a pair.

Angle 15 Degree

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These wedges mount directly to the underside of your existing Tribar mounts converting your horizontal setup into the angled forearm or “Mantis” TT position without the need to change your existing extension poles, add armrest wedges or remove and reroute gear cables etc. These are only compatible with M5 bolting systems but may not fit every M5 system. The wedges are offset in design so have a left and right part. This offset means the wedges will slightly narrow or slightly widen the original mount width when fitted. Visually the wedges will compliment some systems more than others but this should have no bearing on functionality.

Almost anyone with a basic mechanical knowledge can carry out this simple 3 step conversion but if unsure we recommend this task is carried out by a bicycle mechanic.

STEPS 1, 2 and 3

  1. Undo your Tribar stack bolts, usually accessed from beneath the base bars and remove your Tribar mount. Your extension poles may be left attached.
  2. Bolt the wedge onto the top of your Tribar stack with your original manufacturer supplied bolts of various lengths to achieve your desired height. We recommend that if a stack brace plate is being used that you mount the wedges directory on top of the brace. Tighten up to 6Nm.
    *Note that the wedges may be suitable to sit directly onto your base bars if you require a very low Tribar arrangement.
  3. Fir your Tribar mount onto the angled face of the wedge using the various bolts and washes supplied. Tighten up to 6Nm
    *Note that the longest bolts supplied that do not foul your Tribar mount should be used.*In some cases depending upon which was the wedges are mounted step 3 may need to be carried out before step 2 for ease of Allen Key tool accessibility.*With some systems bolts may require fitting from above as opposed to from beneath.


Universal Wedge
Material 6082 T6 Aluminim Alloy, Black Anodised.
Front to Read 51mm
Width 31mm
Front Height 25mm
Rear Height 10mm
Angle 15 Degree
Bolts Supplied A2 Stainless Steel – M5

2 x 16mm

2 x 20mm

2 x 25mm

2 x 30mm

2 x 25mm

4 x M5 spring washers

Nuts Supplied A2 Stainless Steel

2 x 10mm M5 rod connector nuts with rubber O rings (to connect from stack bolts into wedges through the front countersunk hole)

2 x M5 Square nuts (to connect rear stack bolts into the wedges using rear countersunk slot)

Delivery and Returns

Lead Time

There is a 1 to 3 weeks lead time for all Revolver Wheels. There is a 1 to 10 days lead time on all accessories.


We are happy to offer an exchange or refund. Perhaps the item is not what you want, it doesn’t fit, or maybe you’ve just changed your mind. As long as your items are unused, in their original packaging and returned within 28 days of receipt, just send it back. Please note, unwanted items are returned at the buyers expense. If you return an item because it is not as described or it’s damaged, we will replace the item or issue a full refund by the payment method that was received.


Extent of Limited Warranty warrants its products to be free from defects in materials or workmanship for a period of two years after original purchase. This warranty only applies to the original owner and is not transferable. Claims under this warranty must be made through the retailer where the wheel was purchased or direct to the Wave Lenticular Ltd via e-mail. Original proof of purchase is required.

Limitations of Liability

To the extent allowed by local law, except for the obligations specifically set forth in this warranty statement, in no event shall Wave Lenticular Ltd. or its third party supplies be liable for direct, indirect, special, incidental, or consequential damages.

Limitations of Warranty

  • This warranty does not apply to products that have been incorrectly installed and/or adjusted.
  • This warranty does not apply to damage to the product caused by a crash, impact damage, abuse of the product, non-compliance with manufacturers specifications of usage or any other circumstances in which the product has been subjected to forces or loads beyond its design.
  • This warranty does not apply when the product has been modified.
  • This warranty does not apply when the serial number or production code has been deliberately altered, defaced or removed.
  • This warranty does not apply to normal wear and tear. Wear and tear parts are subject to damage as a result of normal use.
  • This warranty shall not cover damages caused by the use of parts of different manufacturers. This warranty shall not cover damages caused by the use of parts that are not compatible, suitable and/ or authorized by Wave Lenticular Ltd.