rim and tire size Q

[Big Lou]

I want a more aggressive tread. it has rained a week and my driveway is up hill and red mud ,,gravel is still slick after a week

 

16 inch tires dont have what i am looking for ,,

 

what other types of bikes will fit my back wheel ???????

 

maybe a 15 inch wheel , or a 17 would be able to find something that will work in mud and still go on interstate..

 

the tail end outrun the front yesterday coming home ,,spent 2 hours fixing a side box and washing mud off motor.. slid around going up hill and was pointing down hill upside down,, and stayed running ,,, never did that before,, just to heavy to lean it up and jump on it going back down hill,,,, fell back on me again when i tried,, 2 times was enough,,hit a gully where the rain had washed across the road once it leaned.. just had to ride it.. mud was too slick,,NOT FOR OFF ROAD USE

 

I have looked at mickey thompson. and other sites ,even considered a tire off the front of a dragster, ,,, if it keeps raining , I will have to park at the bottom and walk a mile up hill to the house

[reddevilmedic]

I havnt been able to find a rear tire with a more knobby tread for a first gen. the sizes have been to small.