gearing

[andy]

can somebody tell me the gearing for the nosram storm evolution 6.5 on a 81 spur on the b4 ,and also for a xx4 with kit spur thanks.

[bigred5765]

ba at a good guess 81-20 xx4 kit spur purple=84-19/20 yellow spur 81-18

[MikePimlott]

I ran 19/20t pinion on my B4 81t spur with a 6.5 nosram storm. Never had any problems with heat

[matdodd]

I run a 19/84 on my XX4 & a 20/81 on my B4 with a Nosram 6.5 & ive never had a problem!

[andy]

thanks for the info