Can You Dyno a Dirt Bike with a Dirt Tire on it

6 replies to this topic
  • HareAndHound98

Posted January 26, 2003 - 07:40 PM


I am not a numbers junkie, however I have made some real performance strides with my machine over factory power. I was curios what sort of numbers my bike would make. Havy any of you put a dirt bike on the dyno?

  • yamafreek_hawaii

Posted January 26, 2003 - 10:42 PM


For tuning purposes you could but you will clean out your tire and the numbers will be less than expected due to slippage.

  • Wrench

Posted January 27, 2003 - 01:51 AM


Depends on the drum. Most Bike Dynos can be bought with 2 drums one for street tires and one for dirt tires. You can always put a street tire on for test if they don't have the dirt drum

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  • Talonboy

Posted January 27, 2003 - 04:05 PM


I ran my XR650 on the dyno. No problems, didn't wear the tire. This was on a dynojet dyno, I think they ran it in 5th gear, strapped the back of the bike down with straps so slipage wasn't a problem.

  • proud_2_ride

Posted December 06, 2006 - 06:57 PM


the bike should be fine aslong as it is strapped

  • 642MX

Posted December 06, 2006 - 07:17 PM


You will want to swap your knobby for a slick if you want to see accurate numbers from the dyno. Knobbies spin on a dyno, strapped or not.

  • Thumper_Bloke

Posted December 07, 2006 - 12:56 PM


If you plan to do alot of tuning on the dyno drum, the knobbies to wear fast. But a couple of "pulls" won't be much wear.


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