[asphaltgambler]

For starters: Sportsters began using rubber mount engine in 2004 so definitely should not consider anything prior unless it is a 'giveaway'. They have made slight but good improvements in frame, suspension and engine since then. So any version 5 years or less old is a decent bike considering their humble beginnings.

883's are fine around town and local highways and can be Ok on long hauls depending on the riders height and weight. Best thing is to sit on it and if the owner will let you, take it on a short ride. It is big torquey engine in relatively compact, light frame as cruiser bikes go. It is a very different experience than say a sport metric cruiser.

As with anything else, the 883 is an entry level bike. The 1200 is a big difference in stock power and torque and some models have the 21" front wheel which does make the bike feel more like a big twin. But the price for the top level 1200 is approaching $$$ on an entry level big twin. even used.

To convert the 883 to 1200 is very basic. The cylinders can be bored to accommodate the new pistons, but to achieve the best results (as you can imagine) you have to replace cams, do some basic head work with valve springs, exhaust, air cleaner and have the ignition and fuel injection tuned to match
the new combination. On some models you may have to replace the ignition module with an aftermarket to really set the best timing curve.

For those who may poo-poo the Sportster, you should ride one with an open mind. It is a very good, big torque hot rod bike.