I Wanted Bigger Tires on My Doodlebug Mini Bike, heres what I found...

I just recently put a new Harbor Freight 6.5 engine on my Baja Doodlebug and I love it!! The problem is I live on a dirt road and the rear wheel bogs down into the sand. I was curious if it would be workable to put bigger tires on the bike rather then the regular 145/70-6 tires that are on there right now? There's only about two inches or so of clearance from where the tire hits the ground to where the chain is.

If you go too big you'll run into trouble between the caliper and sprocket. To avoid this problem I went with the 15X5-6...which is slightly narrower, but ended up giving me enough clearance even with the larger aftermarket hybrid caliper.

Ended up Buying These Tires

<<  Carlisle X-Trac 15X500-6 Tubeless Tires they are so freakin' cool! I can't wait to replace the old ones and get rid of the issue I've been having of bogging in the sand every time I ride it. I truthfully, haven't ridden my mini bike in about a month becuz I could not find a solution. When I installed the new engine on my mini bike, it added like 11 pounds to it plus to my 175 pound fat butt and that just made the tires even worse! However this is a way better as compared to these cheap tires that it came with. I'll most likely use the old tires for a go kart project I'm starting.

I also like these tires Carlisle Snow Hog Tire - 15/500-6 49B, they are another favorite in the mini bike circles.

Other options: are the 15/600-6 tire (also referenced as: 15X6.00-6 or 15X6-6) fits, they are a little wider than the stock tires.