KX Riders

Maintenance & Technical => KX500 Original => Topic started by: AFASTboy on August 10, 2004, 05:16:17 AM

Title: top speed with 15 tooth front
Post by: AFASTboy on August 10, 2004, 05:16:17 AM

I right now have 13/47 gearing and just would like to now what kind of top speed I could expect with 15/47and if I could go to a 16 tooth front if I wanted and would the stock chain except it just wanting to play around as i havent ridden a dirt bike at over 100mph but would love to just once,    Thanks.

Title: top speed with 15 tooth front
Post by: Paul on August 10, 2004, 06:10:27 AM

Somewhere aroudn 110 - 112 the bikes aerodynamics stop it from getting anymore speed. With 15/45 and 15/42 both, I've run 111. No reason to go any smaller than a 45 rear. I would imagine 93 - 95 is attainable with a 15/47 combo.

Title: top speed with 15 tooth front
Post by: AFASTboy on August 14, 2004, 11:46:18 AM

What would a 16t front do?I mean with a 47 rear just wanting to swap out the countershaft for right now seems easier.

Title: top speed with 15 tooth front
Post by: Paul on August 15, 2004, 02:02:28 PM

A 16? Probably eat the case area around the countershaft

Title: top speed with 15 tooth front
Post by: AFASTboy on August 15, 2004, 03:36:44 PM

scratch that then.What would be ideal gearing to put me over 100mph on my bike?

Title: top speed with 15 tooth front
Post by: AFASTboy on August 15, 2004, 03:38:44 PM

Never mind ill just try the combo that you ran 111 with Paul thanks for the help.

Title: top speed with 15 tooth front
Post by: KXKID on August 20, 2004, 05:18:03 PM

:idea:  Might not be a bad idea throwing a balance job on those nobs before breaking the sound barrior..  Things happen FAST when going FAST!
the KID  :wink: