Sugino crankset heirarchy
08-31-10 | 01:03 PM
#1
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2k miles from the midwest
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From: Washington
Bikes: ~'75 Colin Laing, '80s Schwinn SuperSport 650b, ex-Backroads ti project...
Sugino crankset heirarchy
I picked up a donor mtb this morning at the GW, mainly for the cranks and rack. I got me thinking, over the years I've had Sugino MP, GP, GLP, and I think something with an R for good measure. They alwasy seemed fairly identical. Was there ever a difference or was it just all marketing?
08-31-10 | 01:17 PM
#2
PanGalacticGargleBlaster
Joined: Apr 2009
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From: Smugglers Notch, Vermont
Bikes: Upright and Recumbent....too many to list, mostly Vintage.
I own Sugino cranksets of varying quality.
Maxy with the drive side arm swaged to the big chainring, Super Maxy with the drive side arm swaged to the spider and Mighty/Super Mighty/Mighty Tour with a forged arm/spider.
Maxy with the drive side arm swaged to the big chainring, Super Maxy with the drive side arm swaged to the spider and Mighty/Super Mighty/Mighty Tour with a forged arm/spider.
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08-31-10 | 02:52 PM
#5
08-31-10 | 03:06 PM
#6
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From: Scranton, PA, USA
Bikes: '77 Centurion "Pro Tour"; '67 Carlton "The Flyer"; 1984 Ross MTB (stored at parents' house)
I had a bike that came with a non-drive-side aero maxy. It was an awesome crank. I wish I had its drive side brother, too.
08-31-10 | 06:24 PM
#7
Gone World Hepster
Joined: Oct 2005
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From: Lincoln, NE
I think you are right about that JYB, I stand happily corrected. They're still Very Nice Cranks even if they are SR.
08-31-10 | 07:59 PM
#8
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From: Chicago, the leafy NW side
Bikes: 1974 Motobecane Grand Record, 1987 Miyata Pro, 1988 Bob Jackson Lady Mixte (wife's), others in the family
I traded with a local guy who had a 165 and needed a 170; I'd gotten a 170 thrown in with something else so it was essentially free. The 165, which I have used on the petite Lotus SS I am building, turned out to be a Sugino Mighty Competition which is apparently an in-demand crankset among the fixie set. The 170 that I traded though was a Sugino 75 which turns out to have been a special anniversary edition, and as miamijim notes, a very nice crankset in its own right! Oh well, maybe I can trade back for it some day.
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Last edited by Chicago Al; 08-31-10 at 08:28 PM.
08-31-10 | 08:03 PM
#9
Phyllo-buster
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From: Nova Scotia
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I always though SR was SR Ringyo which was also Sakae? same company?
Oops...Sugino...yes different
Oops...Sugino...yes different
Last edited by clubman; 08-31-10 at 08:11 PM. Reason: oops
08-31-10 | 08:12 PM
#10
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A slippery abbreviation, with two different meanings:
* As a trade name, it is an alternate form of Sakae Ringyo, a major Japanese maker of aluminum parts, particularly cranks and seat posts. In the 1990's, S. R. bought what was left of the bankrupt Sun Tour, and the combined companies are now known as SR-Sun Tour.
* The abbreviation "S.R." is also commonly used in want ads for older racing bicycles, where it refers to the old top-of-the-line Campagnolo Super Record gruppo.
https://www.sheldonbrown.com/gloss_sp-ss.html
08-31-10 | 08:19 PM
#11
PanGalacticGargleBlaster
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From: Smugglers Notch, Vermont
Bikes: Upright and Recumbent....too many to list, mostly Vintage.
08-31-10 | 08:20 PM
#12
I think the Sugino Mighty is mighty nice.
08-31-10 | 08:30 PM
#13
PanGalacticGargleBlaster
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From: Smugglers Notch, Vermont
Bikes: Upright and Recumbent....too many to list, mostly Vintage.
especially purty with just the single ring 
(btw, nice job getting the 'mighty' in focus in that pic)
(btw, nice job getting the 'mighty' in focus in that pic)
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03-26-18 | 09:27 PM
#14
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From: Minneapolis,MN
Bikes: 2011 Surly Cross Check, 1990 Rock Hopper
I picked up a donor mtb this morning at the GW, mainly for the cranks and rack. I got me thinking, over the years I've had Sugino MP, GP, GLP, and I think something with an R for good measure. They alwasy seemed fairly identical. Was there ever a difference or was it just all marketing?
03-27-18 | 12:46 AM
#15
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From: Port Angeles, WA
Bikes: A green one, "Ragleigh," or something.
Swagged vs. forged is a pretty big difference. Apart from that, finish, BCD of the chain rings and overall appearance due to the evolution of style over the years. Sugino, like all the major component makers, made a wide range of parts over a wide range of price points.
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● 1971 Grandis SL ● 1972 Lambert Grand Prix frankenbike ● 1972 Raleigh Super Course fixie ● 1973 Nishiki Semi-Pro ● 1979 Motobecane Grand Jubile ●1980 Apollo "Legnano" ● 1984 Peugeot Vagabond ● 1985 Shogun Prairie Breaker ● 1986 Merckx Super Corsa ● 1987 Schwinn Tempo ● 1988 Schwinn Voyageur ● 1989 Bottechia Team ADR replica ● 1990 Cannondale ST600 ● 1993 Technium RT600 ● 1996 Kona Lava Dome ●
03-27-18 | 08:08 AM
#17
Old fart
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From: Appleton WI
Bikes: Several, mostly not name brands.
The "Maxy" models were entry-level, swaged cranks. Above that came "melt forged" (aka "cast") cranks like the LP and GLP, with a tumble-polished finish. The Mighty series and AT were cold-forged and satin anodized. "Guines" was a limited production model seen mostly on show bikes and wall hangers.
03-27-18 | 11:14 AM
#18
Extraordinary Magnitude
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From: Waukesha WI
Bikes: 1978 Trek TX700; 1978/79 Trek 736; 1984 Specialized Stumpjumper Sport; 1984 Schwinn Voyageur SP; 1985 Trek 620; 1985 Trek 720; 1986 Trek 400 Elance; 1987 Schwinn High Sierra; 1990 Miyata 1000LT
The "Maxy" models were entry-level, swaged cranks. Above that came "melt forged" (aka "cast") cranks like the LP and GLP, with a tumble-polished finish. The Mighty series and AT were cold-forged and satin anodized. "Guines" was a limited production model seen mostly on show bikes and wall hangers.
The biggest differences are how it’s made, the level of finishing and the specs (BCD etc.)
https://www.sheldonbrown.com/dp-forging.html
I read that cold forged parts are “hundreds” of times stronger than cast pieces. Don’t know if that’s true- I just don’t want a crank breaking on me. And I just happen to think the Sugino AT is the prettiest crankset- so I’m in luck.
You’ll also see parts that aren’t polished or finely finished or painted or coated in plastic-
Check out the Sugino catalogs on Velobase: Sugino brochures early to mid 1980's
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Commence to jigglin’ huh?!?!
"But hey, always love to hear from opinionated amateurs." -says some guy to Mr. Marshall.
03-27-18 | 11:24 AM
#19
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From: Los Angeles
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In the current line up, the Sugino 'Mighty' crankarms are supposed to be forged from 2000 series aluminum. (which one not specified) The price reflects that. So along with forging vs casting, there's a matter of how fancy an alloy you get.
I'd venture a guess that the old Sugino Mighty's from the 70s and 80s were 6061 or similar, which is fairly conventional.
I'd venture a guess that the old Sugino Mighty's from the 70s and 80s were 6061 or similar, which is fairly conventional.
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