s50

I have a 2007 S50 and I've been wondering what the largest size tires width wise I can fit on the factory spoke wheels? I still want it to be rideable. Best tire choice for minimal distance driving? I might even like to get white walls since my bike is white. Might look cool? Original sizes are...

Just joined the forum. Hoping to get some advice.Had my 2007 S50 for almost 4 years now, bought it brand new in 2009. Always had to choke my bike hard to get it warmed up. Had some electrical problems initially and replaced the battery (which required extending my leads, neither here nor there)...