yz 450f rear sprocket

racer369
Posts
631
Joined
4/1/2008
Location
MO US
10/23/2018 7:41am
Why did they go to a 49 tooth(19) rear over a 48 tooth on 18 model?

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kb228
Posts
6170
Joined
1/31/2018
Location
Mansfield, OH US
10/23/2018 8:54am
More torque if im guessing
10/23/2018 9:11am
Smoother transition between 2nd and 3rd, and makes 3rd more usable. I did it on both my YZ450’s and use 3rd almost everywhere.
mx317
Posts
4249
Joined
4/1/2008
Location
TN US
10/23/2018 6:27pm
They read MXA
2

The Shop

swtwtwtw
Posts
1287
Joined
4/16/2008
Location
Apple Valley, CA US
10/28/2018 5:14am
mx317 wrote:
They read MXA
Lol, true and add Keefer, racerx, and TWMX.
1

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