Hello,
What is the widest tire i can put on a stock rear rim and what is the thinnest front tire?
what is the widest tire you can put in the rear with out any mods other then tire and rim if needed.
Thank you.

 

Well. that would depend on exactly what you're putting them on. Lots of Sporty models and changes over 50 years.

 

The thinner Dunlop 400 series, like my 1200C had, follow tar snakes and wiggle on pavement irregularities something awful. For best results you probably want something with tread like sportbike tires, like Avons or Pirellis. They'll give you better traction, too, something to think about with skinny tires.

Here's a chart for tire/rim fit, but there's more to it than just that, the fattest that will fit your rear rim may not have enough clearance in the bike, that's something you'd have to determine, too. Most manufacturers have dimension info, and you could measure the bike to see how wide a tire will fit.
https://ridewrightwheels.com/pages/m...-fitment-chart

 

I find that any front tire with a center groove that runs along the diameter of the rubber has the tendency of following the cracks and lines on the road. For example: the Shinko 712 front tire.

 

Sorry about that. I have a 2016 iron 883