rail extensions for a viper 137 to 144???

[rough rider]

I have a real good 144 1.75, does anyone make a extension yet for viper ltx 137 to fit a 144 track????

 

[Studroes144]

I extended my apex. Will never do it again. Just my opinion but to me it ruined all the qualities of the apex and the only thing gained was better traction but it completely ruined the ride!

 

[suprfst]

Is your144 a 2.52 pitch track? Most of them are. Your 137 is a 2.86 pitch so youd need to change drivers as well.

 

[rough rider]

Ya my track is a 2.52 pitch, wont work on viper, maybe better off putting a 1.6 or 1.75 on the 137??

 

[suprfst]

Yes that would be simplest way.