Robotics Education & Competition Foundation
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Official Q&A: VRC 2020-2021: Change Up

Usage Guidelines All Questions

Flex Wheels Legality in VRC


Ryan Tang (Event Partner)
11 months ago

I was reading through the VEX products and discovered that for the Flex Wheels, it states in the description, "Flex Wheels are made of a super tough custom blend of silicone rubber- different than any other flexible or compliant wheel used by VRC teams. Both VRC-Compatible wheel diameters are offered in 3 different durometers;..." From what I am seeing this product description is stating that Flex Wheels are legal for use in VRC High School. Would it be the case that VRC HS and MS can use flex wheels in their competition robots or are they only allowed in VEX U still.

Answered by Game Design Committee

Please review the Q&A Usage Guidelines, specifically point 3, "Quote the applicable rule from the latest version of the manual in your question.".

Rule R6 reads as follows:

><R6> Robots are built from the VEX V5 or Cortex system. Robots may be built ONLY using official VEX V5 and Cortex components, unless otherwise specifically noted within these rules. Teams are responsible for providing documentation proving a part’s legality in the event of a question. Examples of documentation include receipts, part numbers, official VEX websites, or other printed documentation.

a. Products from the VEXpro, VEX IQ, or VEX Robotics by HEXBUG product line cannot be used for Robot construction, unless specifically allowed by a clause of <R7> or cross-listed as part of the VEX V5 or Cortex Product lines. For example, the Rubber Shaft Collar (228-3510) is a VEX IQ component that can be found on the VEX “Shafts & Hardware” page, and is thus legal: www.vexrobotics.com/shafts-and-hardware.html

The Flex Wheels were originally released as part of the VEXpro product line. They were recently cross-listed to the VEX V5 portion of the VEX website, with appropriate modifications to the product page.

Rule R15 states the following:

<R15> New VEX parts are legal. Additional VEX components released during the competition season on www.vexrobotics.com are considered legal for use. Some “new” components may have certain restrictions placed on them upon their release. These restrictions will be documented in the official Q&A forums, in a Game Manual Update, or on their respective product web pages.

When the wheels were cross-listed, if there were to be restrictions placed on them for VRC use, they would have been noted on the new product page. Thus, they are legal.

When new products are added to a VEX product line, they are typically documented on either VEX's Coming Soon page, or on the VEX Forums.