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What Chainring Offset for SRAM Eagle T-Type Cranksets and Power Meters?

Written by: Josh Matthew Last updated:

SRAM XX SL, XX and X0 Eagle Transmission (T-Type) Cranksets are available in different Q-Factors (168 mm and 174 mm). The chainrings that fit these cranks come in both 0 mm and 3 mm offsets in order to fit both Boost (52 mm chainline) and Wide (55 mm chainline) bikes. Therefore, you need to be sure you order the correct chainring offset based on your cranks’ Q-Factor as well as your chainline. So we put together the following information to make it as easy as possible!

 

How to Determine Your Chainring Offset

For 168 mm Q-Factor cranks:

  • If your bike has a 52 mm chainline, you need a 3 mm offset chainring
  • If your bike has a 55 mm chainline, you need a 0 mm offset chainring

For 174 mm (Wide) Q-Factor cranks:

  • If your bike has a 52 mm chainline, unfortunately this crankset will not work with your bike and you would need a 168 mm version
  • If your bike has a 55 mm chainline, you need a 3 mm offset chainring

 

How to Determine Your Q-Factor

If you have the SRAM X0 Eagle Transmission Crankset or the SRAM XX Eagle Transmission Crankset (Non-SL Version), your Q-Factor is 174 mm.

If you have the SRAM XX Eagle SL Transmission Crankset, your Q-Factor could either be 168 mm or 174 mm. If you are not sure what it is, we suggest sending us your SRAM part number (serial number) and we would be happy to let you know what your Q-Factor is. You can find the part number on the inside of the drive side crank arm.

Josh Matthew May 29, 2023

92 Comments

  1. Liam Ellis

    I have a sram gx transmission chainring on a 2025 specialized epic 8 expert, I am wanting to get the Sram xx eagle axe transmission power meter but I don’t know if I should get a 3mm offset or a 0mm offset. I was wondering if you would be able to tell me the q-factor? My serial number is 240401 and FC-GX-D1.

    Reply
    1. Dave Harris

      Hi and thanks for your question.

      All SRAM GX Transmission cranksets have the 174 mm Q factor. You will want to get the 3 mm offset chainring with the power meter spider as this will then yield a 55 mm chainline.

      Thanks,

      Reply
  2. Martin

    Hi there, just got a new crank SRAM xx1 dub SL und try to figure out the Q factor to get a chainring with the right offset for a 55 mm CL. The serial number is:
    21T55052646
    Many thanks in advance! Martin

    Reply
    1. Dave Harris

      Hi Martin and thanks for your question.

      Your XX SL crankset is the 174 mm Q Factor wider version. Using a 3 mm offset chainring will yield a 55 mm chainline.

      Thanks,

      Reply
      1. Martin

        Many thanks for the quick reply! Much appreciated. Martin

        Reply
  3. John

    I am looking at a Cervelo ZFS-5 with an Eagle XO crankset and Boost 148 spacing. Everything I read says the ZFS has a 52mm chainline so you can run a narrower q factor but that XO transmission cranks have a 174 q factor. I see above you note that 174 won’t work with a 52 chainline. So how are they making that work??

    Reply
    1. Dave Harris

      Hi John and thanks for the question.

      The only T Type crankset that SRAM recommends for a 52 mm chainline compatibility is the XX SL 168 mm Q Factor with the 3 mm offset chainring. If Cervelo is offering a bike with something different, your best bet will be to ask Cervelo directly or your local Cervelo Dealer.

      Thanks,

      Reply
  4. Shane Steele

    Hi Dave,

    I have an XX crankset, wanting to the know the Q-factor. This is going on a 2023 Santa Cruz Blur, which I believe has a 52mm chainline.

    39T34951275
    FC-XX-P-D1

    Thanks!

    Reply
    1. Dave Harris

      Hi and thanks for your questin.

      All the SRAM XX T Type cranksets are 174 mm Q factor. The XX SL is the only one in the Transmission ecosystem that has both 174 and 168 mm Qs.

      Thanks,

      Reply
  5. Anthony

    Hi Dave!

    Can you please tell me, what is the Q-factor of this 175mm crankset? it should be 168mm i hope, i have 52mm chainline

    03T46087594
    FC-XX-SL-D1

    Reply
    1. Dave Harris

      Hi and thanks for the question.

      Yes indeed. You have the 168 mm Q factor crankset.

      Thanks,

      Reply
  6. Tomas

    Hi!

    Can you tell me what is the Q-factor for this crankset please?

    29T34104019
    FC-XX-SLP-D1

    Reply
    1. Dave Harris

      Hi and thanks for your question.

      You have the 174 mm Q factor version.

      Thanks,

      Reply
  7. Tomas

    Hi,

    i just purchased a new crankset without chainring, apparently according to SRAM part number, it is a crank from a quarq power meter, but can you tell me what is the Q-factor of the crankset please? Thank you for your help!

    29T34104019
    FC-XX-SLP-D1

    Reply
  8. Tobias Lundmark

    Hi
    I’m swapping cranksets between my bikes.
    On my Scott Spark 2023, i think has 55mm chainline will have a xx sl transmission with powermeeter. Number om crankset is 01T45927662
    Also FC-XX-SLP-D1

    What chainring do I need for that setup?
    I will buy 32,34,36 chainring.
    Thanks/ Tobias from Sweden

    Reply
    1. Dave Harris

      Hi and thanks for your question.

      Your crankset has a 168 mm Q Factor so a 0 mm offset chainring will yield the 55 mm chainline you’re looking for.

      Thanks,

      Reply
      1. Mattia

        Buongiorno, sto valutando di cambiare guarnitura, volevo sapere che fattore q ha questa guarnitura xx sl?
        35741687620
        FC-XX-SL-D1

        Grazie

        Reply
        1. Mattia

          Buongiorno, sto valutando di cambiare guarnitura, volevo sapere che fattore q ha questa guarnitura xx sl?
          35T41687620
          FC-XX-SL-D1

          Grazie

          Reply
          1. Dave Harris

            Ciao e grazie per la domanda.

            La tua guarnitura XX SL ha il fattore Q più stretto, 168 mm.

            Grazie,

            Hi and thanks for the question.

            Your XX SL crankset is the narrower 168 mm Q Factor.

            Thanks,

  9. Armo

    Hello.
    I have Trek Rail 9.8 GX which i want to upgrade to XO Transmission.
    The bike frame has a 148 boost standard and currently has GX AXS installed which is 52 mm chainline using X sync chainring.

    I bought XO Ebike groupset for bosch gen 4.
    This set apparently has 55 mm chainline. The chainring that comes with the set cant be used on my bike because its 36T. My bike has max 34T ring.
    I bought Hope bosch gen 4 chainring that comes with 52mm CL and 3 mm offset.
    I understand this standards are mostly for manual bikes. But what about Ebikes? What is the q factor on XO Isis crankarms?

    Can i put this 52 mm CL and 3 mm offset ring with XO or do i need to buy another ring that is 55 mm and 0 offset?

    Reply
    1. Dave Harris

      Hi and thanks for the question,

      For Ebikes, please consult the bike manufacturer for Q Factor and spec on the builds. The addition of a motor between the cranks and the differing chainstay lengths makes this something only they can help with.

      Thanks,

      Reply
  10. radek

    Hi,
    Do you know te q factor of 32t34399099 FC-XX-SL-D1 ?
    Thanks

    Reply
    1. Dave Harris

      Hi and thanks for the question.

      Unfortunately, SRAM is currently experiencing an IT issue so we’re not able to check the Q Factor with them.

      We may be able to figure this out differently, though. Please contact me through our Support channels and we’ll give it a try.

      Thanks,

      Reply
    2. Dave Harris

      Thanks for your patience on this. SRAM is finally back up and running.

      Your crankset has a 174 mm Q factor.

      Thanks,

      Reply
  11. Rawley

    Hi,
    Do you know what TRek Supercaliber Gen 2 SLR bikes come with Q-factor wise if an ML frame SL and Sram XX SL crankset? Is the Q-factor 168 or 174? How do I know whcich one is best for me?

    Reply
    1. Dave Harris

      Hi and thanks for your question,

      SRAM makes two different Q Factors of the XX SL crankset. To find out which your bike has, please let me know the serial number of the crankset itself. This will be laser-etched into the crankset near the pedal spindle. I can then contact SRAM to find out which your bike has. The only reliable way to find out which Q Factor is best for you is to visit a good bike fitter.

      Thanks,

      Reply
  12. David Bennefield

    I have a 2024 Scott Spark with a 55mm CL.
    Interested in the 170mm crank arms with a 36T chainring.
    Which setup for Q factor and offset would you recommend.
    My current crankset’s serial number is:
    19T32913200
    PG-XX1-D1

    Reply
    1. Dave Harris

      Hi David and thanks for the question.

      Nice bike!

      Your current XX crankset is a 174 Q Factor so if going to use that crankset, you could add the single-sided XX Transmission Left Arm spindle power meter. Or you could add one of a couple 8 bolt power meter spiders. If you want to get in touch through our Support channels via email, livechat or phone, we’d be super happy to sharpen this pencil.

      Thanks,

      Reply
  13. Juan

    Hello
    My bike has a 55mm chainline, I want to buy the sram xx sl groupset with 170mm cranks, Which factor do you recommend? thank you

    Reply
    1. Dave Harris

      Hi and thanks for the question.

      The XX SL is unique in the SRAM Transmission Ecosystem. This is the only level where you get a choice of Q Factor with the crankset. If your bike has a 55 mm chainline, the 174 Q factor crankset in the groupset will come with a 3 mm offset chainring. The 168 Q Factor crankset can be ordered separately with either 3 mm (for 52 mm chainline) or 0 mm offset rings (for 55 mm chainline).

      Thanks,

      Reply
  14. Anthony

    Hey Dave!

    2024 Santa Cruz Blur with XX SL crankset FC-XX-SL-D1 Serial 43T35195262. Q factor please?

    Looking to buy the SRAM XX SL Eagle AXS Transmission Power Meter Spider Crankset in 3mm offset, 52 mm chainline from you guys which states it is a Q168.

    Appreciate the help!

    Reply
    1. Dave Harris

      Hi and thanks for your question.

      Your current crankset is the narrower 168 mm Q factor. Our current offerings are also the 168 so if going with the 3 mm offset chainring, this will yield a 52 mm chainline.

      Thanks,

      Reply
      1. Anthony Capelli

        Appreciate it Dave

        Reply
  15. Marco

    Hi Dave, I’m guessing my crankset is 174mm but to double check? SRAM only gives the chainline (55mm)…
    Serial number is 46T26473485
    Thanks in advance!!! Marco

    Reply
    1. Dave Harris

      Hi Marco,

      Your crankset is the narrower 168 Q Factor. If running this on a 55 mm chainline frameset, please use the 0 mm off chainring. The 3 mm offset will yield 52 mm.

      Thanks,

      Reply
      1. Marco

        Thanks for that Dave!

        Reply
  16. cziomekPMC1

    Hi Dave,
    I have two SRAM XX SL Eagle cranksets for 55mm chainlines: FC-XX-SL- D1
    SNs: 10T35016360 and 45T35331241
    What are my Q-factors for both?
    Thank you for your help!
    Chris

    Reply
    1. Dave Harris

      Hi Chris,

      SRAM couldn’t find a serial number matching the 360 unfortunately. 241 is a 174 mm Q. Would you able to try to double check the numbers in the first one?

      Thanks,

      Reply
      1. cziomekPMC1

        Hi Dave,
        That first number of the first SN is hard to read due to wear.
        Perhaps it is 40T35016360.
        Thanks for your help!
        Chris

        Reply
        1. Dave Harris

          Yahtzee!

          174 mm Q factor on that one too.

          Thanks,

          Reply
          1. cziomekPMC1

            Awesome – thanks Dave!

  17. Ace Anderson

    Hey there,
    I have the SRAM XX SL transmission crankset in a 170mm and I’m thinking about getting the spider based power meter but I’m not sure what chainring offset I need?

    The crank serial number is
    16T32545642
    FC-XX-SL-D1
    I’m running this on a 2023 Cervelo ZFS-5
    And I currently have a 3mm offset non power meter chainring on it right now.

    Reply
    1. Dave Harris

      Hi and thanks for the question.

      You have the narrower 168 Q factor version of the XX SL crankset. A 3 mm chainring offset will match the 52 mm chainline frames and the 0 mm offset the 55 mm chainline frames.

      Thanks,

      Reply
  18. Cal Marshall

    I have the SRAM XX SL Transmission 175mm 34T crankset, serial 02T30583873, FC-XX-SL-D1, with an existing 3 mm offset non-power chainring on a 2023 S-Works Epic. I’d like to add the SRAM XX Eagle AXS Transmission Power Meter. What power meter and chainring specs should I order? Thank you for your help!

    Reply
    1. Dave Harris

      Hi and thanks for the great question.

      Your XX SL crankset has the wider 174 mm Q factor. When adding the XX Transmission Power Meter spider, please opt for the 3 mm offset chainring. This will yield a 55 mm chainline.

      Thanks,

      Reply
  19. Kristian Fletcher

    Hi Matt,

    I have just bought the 10661 – 175 XX SL EAGLE T-type dub chainset -2023 / 34 / 175 12 speed. – serial no on arm is 50T20089669 – FC – XX SL – D1.

    I was hoping to replace the 2024 GX crank which came on my 2024 Specialized Epic World Cup Expert. I’ve realised that this is Dub wide which comes with 2 different sized spacers. It also has a chain guide and the bottom bracket is SRAM DUB threaded Wide. Will the Crank I’ve purchased above be compatible with a certain combo of smaller spacers to loose the 6mm ? I’ve tried taking the 4mm from non drive side and putting this on the drive side which seems to keep the chain ring centre of the chain guide but i obviously loose a few mm between the crank arms and chain stays which I’m guessing is the case on the S-works version. Any help will do!

    Kindest,

    Kris

    Reply
  20. Eric Lessard

    If I have an XX SL crankset with a regular dub spindle, can I purchase a wide dub XX power meter spindle and combine them? In other words, are the actual cranks different or is it just the spindle (with regard to q factor)? I have an Epic 8 and specialized says I can use either a 52 or 55 chainline. thanks, Eric

    Reply
    1. Dave Harris

      Hi and thanks for the question,

      The crankarms are exactly the same. The difference in length is only in the axle itself. SRAM does not considering using the XX spindle meter paired with the XX SL driveside as compatible even though the mounting points are identical. Besides the weight (XX is foam core, XX SL is hollow) and aesthetic difference, you may run into Warranty issues down the road if ever needed.

      Thanks,

      Reply
  21. Ben

    Hi guys I have a xxsl group to install. My question is around the dub wide bottom bracket. What spacers would I require? My xxsl power crank is Q-174 3cm offset 55 cl. Thanks

    Reply
  22. Mat

    I have the xxsl eagle crank arms 10T46522888. Going to use these with a sram xxl transmission chainring.

    What is the Q-factor?

    I have an new Epic 8, that has spacers on both sides. Came with an Eagle GX crankset. Do I need to keep these spacers?

    Reply
    1. Dave Harris

      Hi and thanks for the great questions,

      The Q Factor of your crankset is the narrow 168 mm Q. Your Epic has a 73 mm BSA bottom bracket so adding the 168 XX SL crankset will require no spacers on the non-drive and one 4.5 mm spacer on the driveside. Please check the current spacers on the crank for dimensions.

      Thanks,

      Reply
  23. Will

    Hi. I have the FC-XX-SL-D1 crankset with serial number 03T46026936. Can you please let me know the Q Factor? Thanks!

    Reply
    1. Dave Harris

      Hi Will and thanks for the question.

      Your crankset is a 174 Q Factor. If running this on a 55 mm chainline frameset, you will need the 3 mm offset chainring.

      Thanks,

      Reply
  24. Lenka

    Hi, I have an SRAM XX SL Eagle Transmission Groupset with crankset Serial number 06T46348941 (model number FC-XX-SLP-D1), cranks are 175mm. Could you please let me know what is the Q factor? Thank you so much, Lenka

    Reply
    1. Dave Harris

      Hi and thanks for the question,

      Your XX SL Crankset has the 174 Q Factor. If using a 55 mm chainline frameset, please mate a 3 mm offset chainring to achieve this chainline.

      Thanks,

      Reply
  25. Scott

    Hello,

    I have a Specialized Epic 8 expert and just bought XX SL Crankset serial #24T33685291 FC-XX-SL-D1. Could you tell me what offset chainring I need? If I’m right it looks like mine is the 55mm version crankset and I believe my chainline is 55mm with the factory GX Transmission? Just want to confirm before ordering.

    Thanks,

    Scott

    Reply
    1. Dave Harris

      Hi Scott,

      You’re crankset is the 174 Q Factor version of the XX SL. To run this on a 55 mm chainline frameset, please use a 3 mm offset chainring.

      Thanks,

      Reply
  26. Tory Taglio

    I just bought SRAM XX SL cranks for Pivot frame with a 52mm chainline. I didn’t know they came in 174mm Qfactor also. Not sure if mine are 168 or 174.
    24T33610498
    FC-XX-SL-D1

    Thanks!

    Reply
    1. Dave Harris

      Hi and thanks for the question.

      Your XX SL crankset has the 174 Q Factor. Using a 3 mm offset ring will yield a 55 mm chainline with these. The 168 Q Factor version with 3 mm offset ring will be applicable for a 52 mm chainline.

      Thanks,

      Reply
  27. Jim M

    So I don’t have my bike yet- I’ve ordered it and just ordered a XO power meter from you- thanks! However….. I’d like to go from a 34t to 36t. Seems like my only option is to go with an XX SL. My chain line is 55- do I order the 0 or 3mm offset?

    Reply
    1. Dave Harris

      Hi and congrats on the new bike!

      Great question. The XO crankset only comes in a 174 Q Factor so this crankset uses a 3 mm offset chainring to attain the needed 55 mm chainline.

      Thanks,

      Reply
  28. Garth

    Hi, would you be able to assist with what power meter crank would work with my current set up.

    series number:
    230110
    FC-XO-D1

    i believe its a 55mm chain line.

    Reply
  29. clive

    i have a sram XXL crankset with a power meter, the serial number is 07T04630128, what chain ring would I need to 0 or 33m offset, thank you

    Reply
    1. Dave Harris

      Hi,

      This serial number corresponds to the XX1 Eagle crankset in a 168 Q Factor. Please see the below chart for your frameset’s application:

      For 168 mm Q-Factor cranks:

      If your bike has a 52 mm chainline, you need a 3 mm offset chainring
      If your bike has a 55 mm chainline, you need a 0 mm offset chainring
      For 174 mm (Wide) Q-Factor cranks:

      If your bike has a 52 mm chainline, unfortunately this crankset will not work with your bike and you would need a 168 mm version
      If your bike has a 55 mm chainline, you need a 3 mm offset chainring

      Thanks,

      Reply
  30. Sam A

    My SRAM XXSL Transmission crankset serial #23T33398833 FC-XX-SLP-D1 and the Allied BC40 has a 52mm chainline. Will this work? Thanks for the info. Good stuff!

    Reply
    1. Dave Harris

      Hi and thanks for the question.

      Your crankset is the 174 Q Factor version. According to SRAM, even with the 3 mm thread-on chainring, this will only be compatible with a 55 mm chainline frameset.
      Please see below:
      For 168 mm Q-Factor cranks:

      If your bike has a 52 mm chainline, you need a 3 mm offset chainring
      If your bike has a 55 mm chainline, you need a 0 mm offset chainring
      For 174 mm (Wide) Q-Factor cranks:

      If your bike has a 52 mm chainline, unfortunately this crankset will not work with your bike and you would need a 168 mm version
      If your bike has a 55 mm chainline, you need a 3 mm offset chainring

      Thanks,

      Reply
      1. Sam A

        If the bike frame is spec’d w SRAM Eagle Transmission then doesn’t that mean it has to have a 55mm chainline?

        Reply
        1. Dave Harris

          Hi,

          Yes. Very likely 55 mm frameset if coming stock with Transmission. You will need to contact the frame manufacturer to find out their chainline specification for your particular bike.

          Thanks,

          Reply
  31. Sam A

    My SRAM XX SL Transmission crankset serial# 23T33398833 and the frame that I ordered has a 52mm chainline. Will this work? Thanks for all the information on your website. Good stuff!

    Reply
  32. Brett Ramdeen

    Hi. My xx-sl crank serial number is: 34T34539337

    What is the q-factor and chainring offset I will need assuming a 55mm chainline?

    Reply
    1. Dave Harris

      Hi and thanks for the question.

      Your XX SL crankset is the 168 Q Factor version. Using a 55mm offset frame, you will need the 0 degree offset chainring.

      Thanks,

      Reply
  33. simone

    What is the Q factor on my xx sl crankset?
    03T30583813
    FC-XX-SLP- D1

    Reply
    1. Dave Harris

      Hi,

      I am sorry. SRAM isn’t getting that serial number to appear in their database. Would you be able to double check that number?

      Thanks,

      Reply
  34. Stephen

    Hi,

    I have a new XX SL groupset. Is it possible to confirm the Q Factor please.

    170 Cranks
    19T32941993
    FC-XX-SLP-D1

    Reply
    1. Dave Harris

      Hi and thanks for the question.

      Your crankset is the 174 Q Factor version.

      Thanks,

      Reply
  35. Chris Caamano

    I have a SRAM XX SL crankset on my 2024 Trek Supercaliber 9.9 AXS XX bike. I’m interested in a power meter spider for this crank. Based on the serial number below, what offset should I purchase? Thank you!
    43T35189158
    FC-XX-SL-D1

    Reply
    1. Dave Harris

      Hi and thanks for the question,

      Your XX SL crankset is the 174 Q Factor version. The 3 mm offset chainring is applicable for a 55 mm chainline frameset. Please see below:
      For 174 mm (Wide) Q-Factor cranks:

      If your bike has a 52 mm chainline, unfortunately this crankset will not work with your bike and you would need a 168 mm version
      If your bike has a 55 mm chainline, you need a 3 mm offset chainring

      Thanks,

      Reply
  36. Nicolas Delich

    is my q factor?

    fc-xx-sl-d1 22t33234224

    Reply
    1. Dave Harris

      Hi and thanks for your question.

      Your crankset is the 168 Q Factor. Please see the below chart for chainring offset compatibility:

      For 168 mm Q-Factor cranks:

      If your bike has a 52 mm chainline, you need a 3 mm offset chainring
      If your bike has a 55 mm chainline, you need a 0 mm offset chainring

      Thanks,

      Reply
  37. Rob R

    Hi, my serial number on my XX SL crankset is 17T32711457, FC-XX-SL-D, 170mm crank arm. What’s the Q factor and how do I figure out the chainline? The bike is a 2023 Pivot Mach4 SL.

    Thank you!

    Reply
    1. Dave Harris

      Hi! I just followed up with you in the email you sent in and we’ll have some nice options for you once I hear back from SRAM regarding your XX SL crankset’s Q Factor.

      Thanks,

      Reply
  38. Robert

    Hi. Wondering if you could help me work out which version I have please, my serial number is 09T31719068, FC-XX-SLP-D1. Thank you.

    Reply
    1. Dave Harris

      Hi and thanks for the question. Your crankset is the 174 mm Q Factor. So the below chart will apply:

      For 168 mm Q-Factor cranks:

      If your bike has a 52 mm chainline, you need a 3 mm offset chainring
      If your bike has a 55 mm chainline, you need a 0 mm offset chainring
      For 174 mm (Wide) Q-Factor cranks:

      If your bike has a 52 mm chainline, unfortunately this crankset will not work with your bike and you would need a 168 mm version
      If your bike has a 55 mm chainline, you need a 3 mm offset chainring

      Thanks,

      Reply
  39. Todd S

    Hi. I struggling to identify the Q-factor on my T-type XX SL powermeter crankset. Nothing comes up on the Sram serial number lookup. Can you help me identify what it is so I can purchase the correct chainring/offset.

    FC-XX-SLP-D1
    03T30997664

    Thank you so much.

    Todd

    Reply
    1. Dave Harris

      Hi Todd,
      Your XX SL crankset is the 174 Q Factor version. Please see the below chart for compatible chainring offset:
      For 168 mm Q-Factor cranks:

      If your bike has a 52 mm chainline, you need a 3 mm offset chainring
      If your bike has a 55 mm chainline, you need a 0 mm offset chainring
      For 174 mm (Wide) Q-Factor cranks:

      If your bike has a 52 mm chainline, unfortunately this crankset will not work with your bike and you would need a 168 mm version
      If your bike has a 55 mm chainline, you need a 3 mm offset chainring
      Thanks,

      Reply
  40. Andrew Phillips

    What is the Q factor on my xx sl crankset?
    03730952467
    FC-XX-SLP- D1

    Reply
    1. Dave Harris

      Hi Andrew and thanks for the question. Your XX SL crankset is 174 Q Factor.
      Thanks,

      Reply
  41. Matt Morra

    Thanks for the great information. I have not been able to find this amount of detail anywhere else. I have an SRAM XX SL Transmission crankset and would like to know the Q factor. The serial number is 22T33291997, C-XX-SLP-D1. Thank you for your time. The cranks are 165 mm. Matt

    Reply
    1. Dave Harris

      Hi Matt and thanks for the question. Your crankset has a 168 Q Factor. Please see the below chart for compatible chainring offset.
      For 168 mm Q-Factor cranks:

      If your bike has a 52 mm chainline, you need a 3 mm offset chainring
      If your bike has a 55 mm chainline, you need a 0 mm offset chainring
      For 174 mm (Wide) Q-Factor cranks:

      If your bike has a 52 mm chainline, unfortunately this crankset will not work with your bike and you would need a 168 mm version
      If your bike has a 55 mm chainline, you need a 3 mm offset chainring
      Thanks,

      Reply

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