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Discussion Starter · #1 ·
Hey all!

I have a 2012 Tallboy Carbon with SRAM XX group set. I have kept it stock, so to this point if something broke or wore out I replaced it with the original.

My rear Derailleur brake (only 2nd time in 7 years) and I am having trouble finding a replacement XX. I have found some on ebay…

My question is do I have any other options besides:

1) finding a XX on ebay or
2) replacing the entire groupset.

If I replaced the groupset I would go XTR.
My full bike spec is below. Thanks for any advice.

FRAME: Santa Cruz Tallboy Carbon with selected components from XX package Matte Carbon/Red Medium
Front Suspension Fork: FOX 32 FLOAT 29 120 FIT RLC Fork 15QR 1.5 Taper
Brake: Avid XX Disc Brake Set 160F 160R
Cassettes: SRAM XX Cassette 11/36
Chain Guide: None
Chains: SRAM PC-1091 Chain
Bottom Bracket: SRAM GXP/BlackBox Ceramic Bottom Bracket 68 English
Cranks: Truvativ XX Crankset - 166 Q-Factor 175mm 39/26
Front Derailleurs: SRAM XX High Clamp Front Derailleur Top Pull 34.9mm
Grips: WTB Dual Compound Grip
Handlebars: Easton EA70 Monkeybar Low
Headset: Chris King InSet Mixed Tapered Headset w/ GripLock Black
Pedals: None
Rear Derailleurs: SRAM XX Rear Derailleur Medium
Rear Shock: 2012 FOX FLOAT RP23 Adaptive Logic w/Kashima Rear Shock
Saddles: Selle Italia SL Kit Carbonio Saddle Black
Seatpost: Easton EA70 Zero Setback Seatpost 400mm 30.9mm
Shifter: SRAM XX Trigger Shifter Set
Stems: Easton EA70 Stem 100mm
Tires - Front: Schwalbe Rocket Ron Performance 29 Tire 2.25
Tires - Rear: Schwalbe Rocket Ron Performance 29 Tire 2.25
Tubes: Q-Tubes 29" x 1.9-2.3" 32mm PV Tubes
Wheels: Easton EA70XC Disc Wheelset Black - 29" - 2011 Rear Quick Release 15mm



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Discussion Starter · #2 ·
I guess my post was too long for anyone to read...

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I'm not a real drivetrain expert so hopefully someone else will pipe up if I lead you astray, but I would have thought you just need any SRAM 10 speed MTB RD with the same actuation ratio of your old XX. I suspect that if you can't find an exact vintage XX replacement one of the GX 2x10 rear derailleurs that SRAM still sells would work (but I'd check with your LBS or whoever you're ordering from to make sure).
 
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