SR Stems and Stem Angles
#1
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Bikes: 1983 Ross Paragon (21",23"), 1985 Ross Signature 290S (25"), 1986 Nashbar Race SIS (23"), 1987 Peugeot Versailles (24.5"), 1999 GT Timberline (18")
SR Stems and Stem Angles
I have a SR Custom Stem and its seems like it angles down a noticeable amount.
I like this stem because there is no nut. The bolt threads directly into the body o the stem.
I used this stem to replace my stock stem which has an unsightly nut and uses the reflector bracket as the washer.
I saw a SR stem called a SR Royal which also has no nut, the bolt threads into the body of the stem also.
Can anyone tell me if the angle is the same as the Custom?
I would like the stem to be parallel with the top tube like it was with the stock stem with the nut. or maybe there are other SR stems that would be what I'm looking for. Thank you.
I like this stem because there is no nut. The bolt threads directly into the body o the stem.
I used this stem to replace my stock stem which has an unsightly nut and uses the reflector bracket as the washer.
I saw a SR stem called a SR Royal which also has no nut, the bolt threads into the body of the stem also.
Can anyone tell me if the angle is the same as the Custom?
I would like the stem to be parallel with the top tube like it was with the stock stem with the nut. or maybe there are other SR stems that would be what I'm looking for. Thank you.
Last edited by BikePower; 01-07-25 at 11:20 AM.
#2
Without seeing what you have it could be that you have a 74' headtube with a 72' stem as your replacement. I don’t recall Custom having a standard bolt.
The custom stem has a recessed allen bolt with a wedge expander. The Royal that may have a conical expander, I can’t recall.
The main difference between the Custom stem is cast, the Royals are forged.
The Royal is anodized and the Custom is not.
A track stem would have more drop than a road.
The custom stem has a recessed allen bolt with a wedge expander. The Royal that may have a conical expander, I can’t recall.
The main difference between the Custom stem is cast, the Royals are forged.
The Royal is anodized and the Custom is not.
A track stem would have more drop than a road.
#3
Thread Starter
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From: Florida, USA
Bikes: 1983 Ross Paragon (21",23"), 1985 Ross Signature 290S (25"), 1986 Nashbar Race SIS (23"), 1987 Peugeot Versailles (24.5"), 1999 GT Timberline (18")
Without seeing what you have it could be that you have a 74' headtube with a 72' stem as your replacement. I don’t recall Custom having a standard bolt.
The custom stem has a recessed allen bolt with a wedge expander. The Royal that may have a conical expander, I can’t recall.
The main difference between the Custom stem is cast, the Royals are forged.
The Royal is anodized and the Custom is not.
A track stem would have more drop than a road.
The custom stem has a recessed allen bolt with a wedge expander. The Royal that may have a conical expander, I can’t recall.
The main difference between the Custom stem is cast, the Royals are forged.
The Royal is anodized and the Custom is not.
A track stem would have more drop than a road.


i admit in this photo they look like the same angle. Btw .833. diam
#4
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From: Florida, USA
Bikes: 1983 Ross Paragon (21",23"), 1985 Ross Signature 290S (25"), 1986 Nashbar Race SIS (23"), 1987 Peugeot Versailles (24.5"), 1999 GT Timberline (18")
Without seeing what you have it could be that you have a 74' headtube with a 72' stem as your replacement. I don’t recall Custom having a standard bolt.
The custom stem has a recessed allen bolt with a wedge expander. The Royal that may have a conical expander, I can’t recall.
The main difference between the Custom stem is cast, the Royals are forged.
The Royal is anodized and the Custom is not.
A track stem would have more drop than a road.
The custom stem has a recessed allen bolt with a wedge expander. The Royal that may have a conical expander, I can’t recall.
The main difference between the Custom stem is cast, the Royals are forged.
The Royal is anodized and the Custom is not.
A track stem would have more drop than a road.
The stock SR stem was 72 degrees and the SR custom was 70 degrees. But what is the SR Royal? If it is 72 degrees I would buy one. If I cant find a .833" I would get a 22.2 and have it turned down to .833. (yes my ocd really is that bad)
The head tube measured at 74 deg
Do you know what the angle is on a Royal? And if there were different varieties of Royal? Im surprised the stem angle is not engraved on the stem shaft like the length and year are.
Last edited by BikePower; 01-07-25 at 03:51 PM.
#5
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From: Earlville, IL
Bikes: 50s mystery English bike, some Schwinns, Raleighs, Crescent, 66 Sears Sport Racer, 41 Wards Hawthorn





#7
There are variations of SR Royal from standard, fuller cut, and fuller will drilled. I don’t know if there are different angles.
I don’t know, they may have made .833, that’s like Schwinn or BMX size. It’s not as common.
My dad would say if it ain’t broke don’t fix it.
I don’t know, they may have made .833, that’s like Schwinn or BMX size. It’s not as common.
My dad would say if it ain’t broke don’t fix it.
#8
Thread Starter
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Bikes: 1983 Ross Paragon (21",23"), 1985 Ross Signature 290S (25"), 1986 Nashbar Race SIS (23"), 1987 Peugeot Versailles (24.5"), 1999 GT Timberline (18")
#9
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Joined: Jun 2017
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From: Earlville, IL
Bikes: 50s mystery English bike, some Schwinns, Raleighs, Crescent, 66 Sears Sport Racer, 41 Wards Hawthorn
#10
Thread Starter
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From: Florida, USA
Bikes: 1983 Ross Paragon (21",23"), 1985 Ross Signature 290S (25"), 1986 Nashbar Race SIS (23"), 1987 Peugeot Versailles (24.5"), 1999 GT Timberline (18")
#11
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Joined: Jun 2017
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From: Earlville, IL
Bikes: 50s mystery English bike, some Schwinns, Raleighs, Crescent, 66 Sears Sport Racer, 41 Wards Hawthorn
#12
Ride, Wrench, Swap, Race

Joined: Jan 2010
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From: Northern California
Bikes: Cheltenham-Pedersen racer, Boulder F/S Paris-Roubaix, Varsity racer, '52 Christophe, '62 Continental, '92 Merckx, '75 Limongi, '76 Presto, '72 Gitane SC, '71 Schwinn SS, etc.
Some of the stems from back then seemed to be made to fit Varsity clones having 70-degree HT angles and .833" (21.1mm) steerer ID.
I notice that one such stem, branded "Compe Forged", has a very noticeable downward tilt even when fitted to my American/Nishiki Kokusai with it's 72-degree HT angle.
It's the original stem as I recall, I recall having bought the rough, old bike for $20 just to use it's 110mm stem on my Schwinn Supersport, but found the bike's style and configuration as a rider too compelling to part it out!


I notice that one such stem, branded "Compe Forged", has a very noticeable downward tilt even when fitted to my American/Nishiki Kokusai with it's 72-degree HT angle.
It's the original stem as I recall, I recall having bought the rough, old bike for $20 just to use it's 110mm stem on my Schwinn Supersport, but found the bike's style and configuration as a rider too compelling to part it out!


#13
Old fart



Joined: Nov 2004
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From: Appleton WI
Bikes: Several, mostly not name brands.

#14
Thread Starter
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From: Florida, USA
Bikes: 1983 Ross Paragon (21",23"), 1985 Ross Signature 290S (25"), 1986 Nashbar Race SIS (23"), 1987 Peugeot Versailles (24.5"), 1999 GT Timberline (18")
How can I tell a road from a track when looking at SR Royal stems on ebay?
#15
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From: Appleton WI
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N.B. Looking more closely at the catalog scan I posted, the track stem angle is specified as 65°
#16
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#17
Thread Starter
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From: Florida, USA
Bikes: 1983 Ross Paragon (21",23"), 1985 Ross Signature 290S (25"), 1986 Nashbar Race SIS (23"), 1987 Peugeot Versailles (24.5"), 1999 GT Timberline (18")
My dream stem would be an SR Aerox Stem .833 if its the angle I want and says Aerox on it. That would match my crank. SR Aerox stem .833 parallel with my top tube. My dream stem!


Last edited by BikePower; 01-08-25 at 08:52 PM.







