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The Tuning Works
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300cc Power-Valves Cougar
SPECIAL 300cc Version of the Cougar Valves - NOT for 250cc bikes -

Pulley set is an OPTIONAL extra - select yes or no below.
Pulley alters timing for standard ignition - pulleys are not required with a programmable valve controller such as Zeeltronic or Ignitech etc.

Version 3 - now re-designed to improve sealing at low and mid-range openings while maintaining excellent top end flow.

Made from very high grade CNC billet aluminium that is renowned for its toughness at extreme high temperatures.



The original and best after-market solution. Beware cheap imitations that are appearing. Material, profiles and coatings may not be the same.


The design incorporates the power-valve 'pin' that is much larger and made as part of the centre blade meaning that it is impossible for the pin to fall into the cylinder, treated with a hard, self lubricating, ultra low friction coating.
Superior life expectancy and operation.
In some of our tests we monitored a 6hp increase with good mid-range stability on a standard motor. Results may vary depending on your state of tune and condition of current valves & ports etc.
Uses the original spring.
See http://www.rgv250.co.uk/index.html/_/articles/power-valves-r24 for further set up info.
The price here is for a 250cc set of 4 valves, 4 caps and 6 screws.
RACING PART - See terms and conditions.---VAT is deducted for countries outside the EC



Special clause for parts made by Cougar Red: These parts or kits are designed and manufactured for competition use and are sold "as-is without warranty". The entire risk as to performance and quality is with the with the buyer. It is a condition of our making these parts available that it is solely the decision of each individual, rider, team member or team whether they choose to use any parts supplied and in doing so this absolves The Tuning Works & Cougar Red of any claims including and not exclusively for; inconvenience, damage to equipment and/or injury to personnel irrespective of how caused. Parts are sold strictly for motorsport use. Use on road may violate local laws and parts are therefore fitted to road going vehicles entirely at the owners risk. If you wish to return this product for a refund you must notify TTW within 7 days of receipt and the parts must be in original unused condition. It is assumed when ordering or fitting these parts that you accept these terms.
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Available Options:

Pulley Set Required?: