Evolve Prorok Carbon Fibre Tribar Arm Rests


Improved for 2020 the ProRok is a versatile anatomical arm rest which lends itself to all Tribar positions from a traditional level forearm to the currently popular upright or ‘Mantis’ position.

Designed with both professional and amateur athletes in mind the ProRok are available in two models, a fully UCI compliant version with a maximum permitted length of 125mm and its big brother the XL version boasting a maximum length of 156mm, designed with longer distance Triathlon in mind.  Both models benefit from our asymmetric cradle support design allowing maximum control and comfort without the need to go too high sided which can adversely effect aerodynamics around this area.  Each have a pre-drilled flat central mounting platform to allow a good range of movement an compatibility with almost all tribar mounts.

Lead time: 1 to 10 days. Contact for availability.

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ProRok – UCI/TT model

Designing an armrest with the maximum permitted length of 125mm has its advantages beyond delivering a high degree of comfort, it can also greatly assist in adopting the Mantis TT position.  A longer armrest when fitted correctly can extend the armrest central measurement point further forward at your angle of trajectory.  This allows a higher extension grip and hand height to be achieved while remaining within the UCI rules.  A clever marginal gains trick used by Pro Teams to achieve maximum aerodynamics.

ProRok XL – TRI/TT model

Designed without restrictions at 156mm the ‘XL’ is the longest tribar armrest available.

With middle and long distance Triathlon in mind, this fluid elongated design benefits from even more comfort and control thanks to its longer ‘not higher’ asymmetric cradle support…. Developed by Triathletes for Triathletes.


Rests 100% Carbon Fibre 3k 2/2 Twill
Length ProRok: 125mm ProRok XL: 156mm
Width 95mm
Height Outer support radius:45mm

Inner support radius: 31mm

Wall 3mm to 1.8mm taper wall
Bolts Micro head steel M5 Allen bolts x4
Pads Left & Right 10mm Neoprene adhesive backed foam, black
Weight (pair, rests only) ProRok: 100g

ProRok XL: 110g

Additional information


ProRok UCI, ProRok XL

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.


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