2017 Allison XB 21 Bass Sport Pro - No Longer Available

xb03fs

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Needs a sporty to be really fast....not sure how the factory let that one out without the right lower
 

JWolff

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Some people like the extra warranty. And most dont get the pros over 85ish with a 250 anyway. Isnt mid 80’s the max for a tm lower before blowout occurs.
 

xb03fs

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Oct 17, 2008
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Some people like the extra warranty. And most dont get the pros over 85ish with a 250 anyway. Isnt mid 80’s the max for a tm lower before blowout occurs.

But they run mid 90s solo and light and 90 everyday with a sporty 5-10 mph is quite a bit
 
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