Why convert? soo many issues, just find a good used and sell your 883, then you have a solid foundation to build your dream sportster without all the warranty etc issues, gears are correct etc much to consider during conversions and sometimes the mec just gets it wrong so you end-up with more headaches.

My advice, start with a 1200. IMO.

 

A stage 1 would be a big help also. Best way to get the full advantage of the 1200 kit is to do some head work also. You'll already have the heads off and you can get a basic port and polish job for only a few hundred bucks in most cases. That's where you're gonna unlock the power is in the heads.
If you want your sportster to be a street terror some head work, 1250 Big bore kit, Good 2-1 exhaust, High flow AC, dyno tune and then you can take that thing out and wait for some poor soul to challenge you at a stoplight.

 

I've ridden a 1200 and a 1250 converted 883 and the 883 gearing is definately funner to ride than the 1200 IMHO. I have no problem on our freeways with the 883 gearing cruising at about 120 kmh It still pulls hard at that speed in 5th with lots of speed left.

 

They may have done in the past, but not these days. The only difference is that 'World' XL1200s have 30T trans pulley compared with 29T for US models, all others are US spec. Here in the UK we get the same owners manual as you do in the USA, so you can see this data for yourself.

 

That's where I read it, manual for my 2005 883R.

 

I quoted my 2011 manual! Things have obviously changed.

 

My '07 manual shows faster gearing for euro 883. I wonder when this changed.

 

So say u got a 883 iron with power commander V specific for the 883 and tuned good. Do I need to buy another pcv or can the 883 commander just have a new map downloaded? I already have pipes ac and tuner. Does a new map come with the 1250 kit or do u gotta go to fuel moto ect......?

 

Awesome. Thanks for the fast response. I plan on upgrading to ur 1250 kit this winter. :-)

 

We would be more than happy to help out if needed.