Sportster Models 883, 883 Custom, 1200 Custom, 883L, 1200L, 1200S, 1200 Roadster, XR1200, and the Nightster.
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1200 vs 1250

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Old Dec 22, 2009 | 11:38 AM
  #1  
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Default 1200 vs 1250

Hi all again,
Interested to see opinions on upgrading an 883 to either a 1200 or 1250 kit. Any real difference with the extra 50cc's? Also can you give me an idea of how much the upgrade cost you. (I'm planning on having a shop do it)
//Thanks,
Rob
 
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Old Dec 22, 2009 | 03:20 PM
  #2  
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There's either a lot to the 50cc or not much at all. Depends on what you want to do with the bike or whats your budget?

Hard to judge cost effectiveness or possibility of a bore because you left out info about your bike.
 
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Old Dec 22, 2009 | 04:05 PM
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It's 3 cubes and I think it's a gimmick to get you to spend more money.
 
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Old Dec 22, 2009 | 05:24 PM
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upgrade to the 1250...new pistons, heads and cams...
 
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Old Dec 23, 2009 | 01:46 AM
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The only problem that I know of is that at 1250cc there really is no more room left to go bigger on the cylinders if you ever need to. That being said, I bought a 1250 kit myself. After all, there IS no substitute for Cubic Inches! Ha!
 
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Old Dec 23, 2009 | 09:33 AM
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Thanks all, still kind of learning on this end but want to know what my options are down the road, seems like you can sink a ton of money into these things.
 
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Old Dec 23, 2009 | 09:54 AM
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I dunno about the difference. My 1250 conversion kit arrived yesterday. Costs for pistons, cylinders, rings and gasket set was $700 plus shipping. I will do the install sometime during the next few days. Ordered from NRHS, Dan the owner, is very helpful there.

I got an estimate from the Harley Dealer that is running a special on engine upgrades. They quoted me $1,250, plus any incidental clamps etc that might be needed. That included labor, and was 25% off (both parts and labor) what they would normally charge.
 
Attached Thumbnails 1200 vs 1250-engine.jpg  

Last edited by SportyPig; Dec 23, 2009 at 10:00 AM.
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Old Dec 23, 2009 | 10:32 AM
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The only advantage I've read about the 1250 is that it helps unshroud the valve and helps the heads breath better with the larger 1200 valves.
 
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Old Dec 23, 2009 | 11:24 AM
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There is no replacement for displacement!
 
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Old Dec 23, 2009 | 12:25 PM
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Originally Posted by dirty keith
There is no replacement for displacement!
Then why don't we all have the Boss Hoss with the Chevy V-8???
 
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