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SRAM Red 10/11 speed crankset questions

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SRAM Red 10/11 speed crankset questions

Old 02-17-21, 09:31 AM
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SRAM Red 10/11 speed crankset questions

I have a SRAM Red 10 speed 50/34 GXP 110 BCD 175 mm Exogram crankset.
(the newer one with the one hidden bolt under crankarm)

Can I put the 10 speed 50/34 chainrings (from Exogram crankset) on an 11 Speed SRAM Red 22 GXP 110 BCD
Exogram crankset?
(Shifters, cassette and chain will still remain 10 speed)

The reason is that the 11 speed crankset has 170 mm
cranks for use by another person

Last edited by bike_boy; 02-17-21 at 09:34 AM.
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Old 02-17-21, 09:43 AM
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Don't bother. 11 speed chainrings will work on a 10 speed setup.

But if I missed something about what you're needing to do... yeah they'll work. The crank is near meaningless in this regard. Same with Front Derailleurs.
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Old 02-17-21, 10:29 AM
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Originally Posted by Psimet2001 View Post
Don't bother. 11 speed chainrings will work on a 10 speed setup.

But if I missed something about what you're needing to do... yeah they'll work. The crank is near meaningless in this regard. Same with Front Derailleurs.
Kinda the reverse need. Can the 10 Speed chainrings work on 11 speed crankarm?
(Bearing in mind that the 10 & 11 speed are both Exogram 110 BCD)
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Old 02-17-21, 10:37 AM
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Originally Posted by bike_boy View Post
Kinda the reverse need. Can the 10 Speed chainrings work on 11 speed crankarm?
(Bearing in mind that the 10 & 11 speed are both Exogram 110 BCD)
Like I said - yes they can but you can also just leave the 11 speed chainrings on it.

So - if you are planning on using the 11 speed crank then just leave the rings on it. If the rings are damaged and you need to run it on the 10 speed system then sure - slap the 10 speed rings on it.

In general - step back and explain what you're trying to do as the answer is most likely more simple than where you're going. A "sure it works but that's not the question you should be chasing...why are you switching" kind of thing.
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Old 02-20-21, 07:57 PM
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Per SRAM Red 50/34 BCD 110 Crankset GXP 11-Speed C2, and knowing that it can work on threaded or 86mm press-fit bottom brackets bikes -

I saw on a site where it indicated that it's spindle having a 22/24mm taper will not work with 24mm outboard bearing bottom brackets.

Does that mean a SRAM/Truvative Team GXP Bottom Bracket English 68/73 mm will not be be compatible? Is this type bottom bracket considered an outboard bearing one ?

Last edited by bike_boy; 02-20-21 at 08:14 PM.
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Old 02-20-21, 08:14 PM
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Originally Posted by bike_boy View Post
Per SRAM Red 50/34 BCD 110 Crankset GXP 11-Speed C2, and knowing that it can work on threaded or 86mm press-fit bottom brackets bikes -

I saw on a site where it indicated that it's spindle having a 22/24mm taper will not work with 24mm outboard bearing bottom brackets.

S, does that mean a SRAM/Truvative Team GXP Bottom Bracket English 68/73 mm will not be be compatible? Is this type bottom bracket considered an outboard bearing one ?

GXP bottom bracket- the one with 24mm& 22 mm bearings will work with GXP crank, so if your frame has English threads then you're good.
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Old 02-20-21, 08:56 PM
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Yes, my frame is Engish threaded. I don't know what bearing sizes are in SRAM Team GXP bottom bracket . I just know it is supposed to work with 68/73 mm English-threaded frame shells.

So are you saying the newer SRAM Red 11 speed C2 Crankset will work with it, then?
It's bearings then are not considered the Outboard type?
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Old 02-20-21, 11:07 PM
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if its NON AXIS rings then they should be interchangeable , they are usually the same when you go to buy replacements , the newer axs 12 speeds are not , at least i never made it that far up the food chain to know , even the red and force 22 with the removable spiders seems to all run the same rings on gxp dub and bb30/pf30 cranks , for me i have never had any issue , i have used all the rings sram made for road bikes except the newest axs rings !
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Old 02-21-21, 12:30 AM
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Originally Posted by bike_boy View Post
Per SRAM Red 50/34 BCD 110 Crankset GXP 11-Speed C2, and knowing that it can work on threaded or 86mm press-fit bottom brackets bikes -

I saw on a site where it indicated that it's spindle having a 22/24mm taper will not work with 24mm outboard bearing bottom brackets.

Does that mean a SRAM/Truvative Team GXP Bottom Bracket English 68/73 mm will not be be compatible? Is this type bottom bracket considered an outboard bearing one ?
Originally Posted by bike_boy View Post
Yes, my frame is Engish threaded. I don't know what bearing sizes are in SRAM Team GXP bottom bracket . I just know it is supposed to work with 68/73 mm English-threaded frame shells.

So are you saying the newer SRAM Red 11 speed C2 Crankset will work with it, then? It's bearings then are not considered the Outboard type?


The GXP crank is fully compatible with both . a Press fit GXP bb, And a English threaded outboard GXP bb.

''will not work with 24mm outboard bearing bottom brackets.'' sound like they were talking about a Shimano outboard bb for a 24mm shimano spindle. And that would be correct. a Shimano external bb won't work with a GXP spindle.

GXP cranks need a GXP bb which is a 22mm bearing on the non drive side. And a 24mm bearing on the drive side. So the stepped down GXP spindle matches this 22/24mm.

Shimano bb's are 24mm bearing both DS and NDS.

Last edited by trailflow1; 02-21-21 at 01:42 AM.
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Old 02-22-21, 10:27 AM
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As mentioned - GXP is GXP.

SRAM couldn't do a straight 24mm because that would be what Shimano was doing in Hollowtech II. So they put a shim on the outboard bearing to make it a 22 but the 24/22 IS GXP. That's how you call it out... "GXP".

24mm BB is generally accepted as meaning a Shimano 24mm standard. SRAM GXP is the same with a shim on the non-drive side.

Regardless...if you are putting a GXP crank on a bike then you need a GXP BB. As mentioned above they make them for all sorts of frame shell interfaces. If you have a standard road threaded BB (remember when we used to be able to say that...'standard') then most likely it's a 68mm shell width English threaded BB. Just get an english threaded GXP BB.

This stuff can be confusing for newer people but think of it like this - you have a hole in your frame...you have a spindle you want to put through it. The holes can be all sorts of sizes and the spindles can be all sizes as well. As long as the spindle is wider than the hole in the bottom of the frame (meaning it sticks out both sides) then you simply have to find the right BB. The right BB is the one that matches the spindle on the inside of it and matches the hole in the frame on the outside of it. Think of it like spraying expanding foam into something. It takes up the gap.

The inside of the BB and the outside of the BB can be completely different and are generally independent of each other.

So...GXP is GXP. If your cranks is SRAM and says GXP then it needs a GXP BB. Now you need the GXP BB that has an outside that fits the frame hole. Sounds like yours is a threaded 68mm shell. That's a pretty basic BB to need then.

Now if it says DUB.....eh...nevermind.
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Old 03-18-21, 07:39 PM
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I moved my SRAM RED 10 speed chainrings to a SRAM Red 50/34 BCD 110 Crankset GXP 11-Speed C2 Exogram 170 mm crankset as well as use the SRAM/Truvative Team GXP Bottom bracket.

I did this because I could not locate SRAM Red equivalent crankset in 10 speed that had 170 mm cranks. The original
10 speed drivetrain had a crankset that was 175 mm cranks; needed shorter cranks.

Thanks for all the info/advice.

Now I can replace the SRAM Red 11 speed chainrings on another bike with the new onesmI removed from the 170 mm cranks
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