Bel-Ray Thumper Friction Modified Racing 4-Stroke Motor Oil
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Bel-Ray Thumper Friction Modified Racing 4-Stroke Motor Oil

Our price: $11.99

MSRP: $13.95 - You save up to $1.96 (14% off)

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    Bel-Ray® Friction Modified Thumper Racing 4T Engine Oil is a 4-stroke motorcycle racing oil formulated specifically for motorcycle applications using separate engines and transmissions. Friction modifiers reduce engine temperature, increase horsepower and extend engine life. Meets API SM and JASO MB requirements. Suitable for air-cooled/liquid-cooled 4-stroke engines.
  • Do not use in wet clutch applications.
  • Reduces friction and increases horsepower.

Bel-Ray Thumper Friction Modified Racing 4-Stroke Motor Oil Reviews

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NOT FOR WET CLUTCH APPLICATIONS

Comments On Sep 18, 2013:Purchased some for my YZ450F. After reading the bottle realized it was not for wet clutch applications.

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great engine oil

Comments On Sep 17, 2013:great engine oil! of course you can only really use it in the engine side of a crf or somting without a wet clutch... but it still does excellent. lasts a long time and keeps your engine running fast and smooth.

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4-Stroke oil

Comments On Oct 10, 2012:Only oil I'll use in my Honda CRF

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does its job

Comments On Jul 23, 2012:best oil i've found so far

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