stock XR650R BHP?



4 replies to this topic
  • rb929rr

Posted September 11, 2003 - 07:41 PM

#1

does anyone know what the stock HP is for a 2002 XR650R?
(Ca. bike)
thanks

Rich

  • smashinz2002

Posted September 11, 2003 - 08:21 PM

#2

Yes, Stock HP is reported to be 43. Uncorked, the bike puts out a reported 55. Torque values are actually more impressive than the HP values, since the high torque output is what really propels the bike up to speed in a hurry, very similar to a CR500 but without the "hit". However, it's still not close to the power of a CR500 (65+ HP and much lighter), it just feels similar is all.
L.L.

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  • rb929rr

Posted September 11, 2003 - 09:17 PM

#3

thanks
i was wondering why i've been smoking KTM LC4's :) :D

  • rvl

Posted September 12, 2003 - 08:50 AM

#4

Actual rear wheel hp on
Dirt Bike's dyno:

uncorked XR650R: 50
CR500R: 56

  • qadsan

Posted September 12, 2003 - 09:01 AM

#5

The key to the puzzle is torque and how much torque there is at the rear wheel at given RPM's in relation to the gearing being used. HP is calculated from torque as follows: HP = torque x rpm / 5252





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