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Is today’s 883 Sportster anything like the original?

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Old 12-22-2018, 02:14 PM
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Default Is today’s 883 Sportster anything like the original?

Just wondering if anyone has ever spun the wheels of a 57 or any of the early model sportsters. From what I read the displacement was similar. Were they about the same as today’s 883? Faster? Slower?

I have a 2017 Iron and I sometimes find myself cruising down the road wondering if this is what it felt like to be on one of the baddest bikes in town in 1957...
 
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Old 12-22-2018, 03:41 PM
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They are the same capacity, but were born in a different age. I recommend reading this article if you haven't done so, which sets the scene nicely at the time the bike was first introduced. Note the small pipes, drum brakes and easier style. No they weren't faster!



They were actually developed from a sidevalve design, the KL, which was 740cc:

 
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Old 12-22-2018, 04:18 PM
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Last two years of the K model flat head was 883. The 57 Sportster was over head valves on the K model lower end.
 
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Old 12-22-2018, 04:59 PM
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So the ‘58 XLCH would have been a bit closer to today’s model? With the compression ratio I mean
 
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Old 12-23-2018, 12:09 PM
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Originally Posted by XL1982
Just wondering if anyone has ever spun the wheels of a 57 or any of the early model sportsters. From what I read the displacement was similar. Were they about the same as today’s 883? Faster? Slower?

I have a 2017 Iron and I sometimes find myself cruising down the road wondering if this is what it felt like to be on one of the baddest bikes in town in 1957...
Mention of the old Sporsters just brought a grin! No they are not fast by today's standards, but in their day ( I had a '62 and a '66 XLCH) the Norton's and Triumphs would run away from them . It was 40 cubic inch British stuff against 53.9 American Iron. That is UNTIL you tweaked the Sporster just a little such as bored carb (Linkert) and add the last "P" cam, and a set of straight "comp pipes" That with a little port and polish would wake up the beast and some of my CH riding friends "stroked" the engine for more Cu in.--but the sifton cams made an already hard to start kick only even harder and balkier at low speeds. We have the best of both worlds with today's bikes--smoother power, better handling and more reliability. My right heel has never recovered.
 
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Old 12-23-2018, 12:22 PM
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Originally Posted by arkyleo
.... the sifton cams made an already hard to start kick only even harder and balkier at low speeds. We have the best of both worlds with today's bikes--smoother power, better handling and more reliability. My right heel has never recovered.
Being British I had British bikes back in the '60s and 70s. One of my favourites was a Velocette Venom Thruxton, which had it's own way of biting when kick-starting it. On back-firing it hurled the inside of the knee into the oil-tank filler cap - which sometimes drew blood and always left a blue bruise and turned the air blue.

Those were the days - when men were......
 

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Old 12-23-2018, 05:42 PM
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My Wife and I have the best from both eras. Her - 2004 XLH 1200 Custom, Me 0977 XLH 1000. My 77 Ironhead has P cams, S&S Super E, digital single fire ignition, ported heads and baffled drag pipes. The 77 Ironhead Sportster keeps up with my Wife's 04, even with her right wrist affliction (severe twisting motion.) LOL, just makes riding with her more fun.
 
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Old 12-24-2018, 03:39 PM
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In '68 I had a Harley 125cc 2 stroke. I know it was AMF breeding, but it had the name. . Anyway, on my way to work in the mornings I always passed a guy with a Sportster. No idea what year but he was constantly kicking it over to TRY and start it. Usually I would hear a back fire and him cussing, but one day I head the backfire and a loud ooomph! I looked over to see him lying over the handlebars. Seriously, about a week later I saw him getting on a Triumph. No more sportster.

Those things were beasts to start. Heck I know the Sprints I later owned were not much better. Nowhere near as powerful, but still cantankerous.
 
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Old 12-24-2018, 04:39 PM
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Originally Posted by handirifle
In '68 I had a Harley 125cc 2 stroke. I know it was AMF breeding, but it had the name. . Anyway, on my way to work in the mornings I always passed a guy with a Sportster. No idea what year but he was constantly kicking it over to TRY and start it. Usually I would hear a back fire and him cussing, but one day I head the backfire and a loud ooomph! I looked over to see him lying over the handlebars. Seriously, about a week later I saw him getting on a Triumph. No more sportster.
Those things were beasts to start. Heck I know the Sprints I later owned were not much better. Nowhere near as powerful, but still cantankerous.

I had a Aermacchi Harley-Davidson Sprint 350 (single cylinder) for a couple
of years ('77-'78). Mine would kick over pretty consistantly, but I never did
get used to the left-side brake/right-side shifter....

T.
 
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Old 12-24-2018, 11:08 PM
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Mine was a 350 also. Got it for $100. Needed a valve job so I did it by hand. Was pretty darn poor in those days so there was no choice. Kept it a out a year after rebuild till I joined the Army in '72 and sold it.
 


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