Bel-Ray Thumper Racing Synthetic Ester Blend 4T Engine Oil

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Rating 5.00 of 5 (7 Reviews)

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Product Information

Bel-Ray Thumper Racing Synthetic Ester Blend 4T Engine Oil

Bel-Ray Thumper 4-Stroke Racing Motor Oil is specifically engineered to meet the demands of single cylinder, multi-valve 4-stroke racing engines. The high temperatures and severe loads of racing require the exceptional film strength, shear- and temperature stability of Bel-Ray Thumper 4-Stroke Racing Motor Oil.
  • Synthetic blend for racing engines
  • Maximum horsepower and consistent clutch performance
  • Wear protection for valve-trains, rings, cylinders and pistons
  • For air-cooled / liquid-cooled 4T engines with wet clutches
  • Item # 5755
  • SKU #
  • Mfr. Part #

Product Reviews 1 - 7 of 7

Overall Rating: 5.00 of 5

(7 Reviews)
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What Other Riders Are Saying...

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Great product and fast fast shipping

Fast shipping, great price, and great selection

Wes - January 26, 2017

(Kismet, KS)

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Bel-Ray always good

Noticed smoother shifting on the Husky with this oil, I like the 15-50, gonna use it in the DRZ now too.

Bill - January 13, 2014

(Mullica Hill, NJ)

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Bel-Ray Thumper Racing Synthetic Ester Blend 4T Engine Oil

Great oil. Noticeable improvement in power and clutch performance.

Chris - December 12, 2013

(Chula Vista, CA)

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Great Oil

I used this oil on my Ktm 380 2 stroke and its perfect, no problems with the clutch at all. Key to look for in the product for your bike is if it is wet clutch suitable and this product shows here online it is good for that and works awesome! thanks.

TJ - June 12, 2013

(Akeley, MN)

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Just turned 21,000 miles on my DRZ400SM

I have used this oil in my DRZ since the first oil change at 200 miles. I have changed oil every 1500 miles or so after that. No issues with seals or the stator. Using the 15-50.

Ted - April 9, 2013

(Birmingham, AL)

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This is the oil to use

Exceeds manufactures requirements a little cheaper than full synthetic It’s better to change the oil more often than to buy expensive full synthetic and leaving it in longer

KXF450 Keith - June 26, 2012

(Finleyville, PA)

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Oil

I ordered this for my husband, but he would not use this product if it weren't great. He loves his bike and would only use the best. Thanks for a great product and great service.

Sharon Sykes - April 9, 2009

(Troutman, NC)