Is there any difference other than the engine between the 883 and 1200 sportsters? Do they use the same frame?

 

-317

 

Some guys will of course say about 317 cc difference.. That is about it though. Same frame and lower end. I think the 1200 has a larger bore and stroke and a lot more torque and hp and an air cleaner that looks like a can of ham.

 

Other than the obvious mentioned 317cc, the other difference is in transmission gearing I believe. The frame of the two are the same. Drive pulley (gear) on the rear wheel is different by a couple of teeth too, I think.

 

about 15 to 20 hp. look almost identical. steeper gearing in 883.

 

I also am curious. Specifically as it relates to the clutch. I am seriously thinking of doing the 883 to 1200+ conversion on my 08 sportster but never have heard if one has to upgrade the clutch or not.

 

The stroke is the same, the 883 has a 3.00 inch bore and 3.81 stroke the 1200 has a 3.5 inch bore and a 3.81 stroke. The 883 comes with a 27 tooth countershaft sprocket/pulley and the 1200 comes with a 28 tooth in the US. European models come with 30 tooth countershaft pulleys.

 

How does the number of teeth in the countershaft pulley make a difference?

Would it benefit a U. S. bike to switch to the 30 tooth pulley?

Is it done regularly?

Is it simple to do?

 

The Euro bikes engines turn at a lower rpm for a given road speed than ours do, the 27 tooth on the 883 enhances its acceleration but increases its engine rpm for a given road speed. Using the 27 tooth on a 1200 would increase its acceleration ability but reduce fuel economy. Any change to the CS pulley requires a speedo recalibration.

Unless you're a drag racer and timing your acceleration runs, pulley changing is not going to do much for the seat of the pants feel.

 

I thought it was a can of ham. Now I'm bummed. Lunch was sounding pretty good till I read this