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  1. #1
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    SS crank weights

    Ok, there have been quite a few threads on here in the past asking about different cranks and weights. I would like to see if you guys would be willing to post up the following:

    Crank:
    Brand
    Model
    Size
    weight

    For the weights, I am trying to put a list together of weights that you guys have actually measured on your scales and not some claimed corporate BS weights. I think it would be a good idea for cranks that are considered 3 pc or use a traditional style BB (ie square, octi link...) that you should post the weight of your crank (arms) and the bb seaparately. For those using an external cup style, you can list them together or separately but please be clear as to how you measured it.

    I'm not looking for weights with chain rings though I can see where an overall weight would be nice to post up, so if that is all you have then go ahead and I can figure that part out later (just make a note of it).

    I figured it might be nice to sorta have a listing since there are so many folks that seem to ask questions about a light weight SS crank this...or that. Since mine is off the bike at the moment I will try to get a measurement of it toghether this evening. I figure the weather is crappy enough that it is probably a great time to take the ring off and really clean the thing up. (hell I might even be sending it out to get recoated in flat black).

    So fire away! Post up pics as well if you like as this could become a good resource down the road for other SS new comers.

  2. #2
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    Ironically, I just happened to have mine apart last night and threw it on the scale...
    Shimano M960 modified for single ring.
    Weight is 560 grams with blackspire mono veloce 32 tooth ring and all hardware but does not include the XTR bottom bracket which should weigh about 95g. Total would be ~655g for the whole setup.

    Edit: I have a second modded M960 that is currently sitting on the workbench, so I weighed that one as well...515 grams with preload and pinch bolts only. NO chainring, chainring bolts or BB.

    Both are 175mm arms.
    Last edited by BShow; 11-30-2011 at 06:42 AM.

  3. #3
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    Awesome, that saves me from having to weigh mine! (also have M960's). I'm running a HB 32t ring though and an XT BB for the moment.

  4. #4
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    X-7 with HBC Ti ring, 175 mm - 756. I'll weigh the cranks and bottom bracket alone soon.
    <a href="https://s128.photobucket.com/albums/p167/nmanchin/?action=view&amp;current=3b2d0a09.jpg" target="_blank"><img src="https://i128.photobucket.com/albums/p167/nmanchin/3b2d0a09.jpg" border="0" alt="Uploaded from the Photobucket iPhone App"></a>
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  5. #5
    miwuksurfer
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    Overly sarcastic comment deleted.
    Last edited by miwuksurfer; 06-25-2013 at 08:52 AM.

  6. #6
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    Actually there is a thread over there for this as well. I figured if anyone knew weights on parts they would. None the less, I'm not doing this in an effort to figure out what the lightest weight set up is. I am trying to do this so that there is a bit of a guide out there and perhaps help save some people some research time. If you don't like it or don't care then GTFO!

  7. #7
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    I approve of this thread. If you're not worried about crank weights, then just stay out.


    Crankset - Shimano LX m571 (no chainring) - 447
    Crankset - Shimano XT m751 (no chainring) - 449
    Crank bolts - Shimano - 35
    Bottom Bracket - Shimano ES-70 - 250

  8. #8
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    Crank - Truvativ AKA 1.1G Singlespeed
    Weight - 546g (arms/spindle, without spider)
    Spider - 61g
    Size - 175mm
    BB - Truvativ GXP (stock with cranks) - 108g
    Chainring - HBC Spiderless, 28T - 52g

    If I recall correctly, these weights do not include the 3 spider/ring mounting bolts.

  9. #9
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    Thanks for posting up some data guys! Via your help and a link provided to me over in another thread, I now have about 46 or so cranks listed in a spread sheet. It would be great to get some documented weights for the following if they are out there:

    White Industries
    Middleburn
    X9
    Cannondale Flash
    Surly
    and anything else you guys can think of

  10. #10
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    SS Crank Weights

    Here's a few SS crank weights for your list 1SP.
    Attached Thumbnails Attached Thumbnails SS crank weights-2.jpg  


  11. #11
    miwuksurfer
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    One day you are weighing your cranks and the next day you become anorexic and quit carrying water on your rides because it weighs too much!

    Just kidding guys, carry on.

  12. #12
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    Quote Originally Posted by miwuksurfer View Post
    Jesus, who cares? Please take this over to the weight weenies forum.
    I'd be willing to bet that a lot of people in the SS forum don't care about your Rapha/CX/tatoo post, but they're not flaming you for it...

    If you don't like a post, just move a long... no need to waste you're energy spreading negativity. All you gotta do is point, click and just like that you're looking at another thread.

  13. #13
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    Quote Originally Posted by crazy8 View Post
    Here's a few SS crank weights for your list 1SP.
    Damn... How do you get yours so light? I've taken away about as much material as I think is possible and it looks like you've still got a good 20-30g on my M960s.

  14. #14
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    Light SS960's

    I fill the hollow void in the arms with helium

  15. #15
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    I weighed my arms only last night. No bolts no rings and got 469g. I suspect with my ti pinch bolts and the spindle bolt that they are right around 480ish. (m960 from crazy8)

  16. #16
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    Quote Originally Posted by 1SPD View Post
    I weighed my arms only last night. No bolts no rings and got 469g. I suspect with my ti pinch bolts and the spindle bolt that they are right around 480ish. (m960 from crazy8)
    Wow. I'm gonna have a good look at mine when I get home tonight. I'm at 515g with the standard steel pinch bolts and aluminum preload bolt. That likely puts me just under 500g for the arms only. ~30g difference for the same set of arms is a lot of extra aluminum.

  17. #17
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    Quote Originally Posted by crazy8 View Post
    I fill the hollow void in the arms with helium
    Ima try hydrogen, that way I'll be light and explosive out there on the race course, whereas you'll be light and talking funny.

  18. #18
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    I will reweigh mine when they return. I will get weights for the following:

    Arms alone
    Arms with pinch bolts (ti) and alu preload (which is actually lighter than my ti one)
    Arms, ring, ring bolts and all above hardware
    BB (its an XT but that will change by spring probably)
    And all of it together as it would be on the bike

    I think RD (crazy8) could probably pull a little more out of them by grinding down the small ring mounts on the back side. He did not touch those on mine. I don't know if it was a strength issue or what but I really have no need for them. I don't think it would shave alot mind you, maybe a few more grams anyway.

  19. #19
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    DaVinci:



    Cranks: 175mm; 462g (181g L arm / 281g R arm w/ ring)
    BB: Token Ti; 160g

    622g w/o crank bolts, of which I use steel lol.

  20. #20
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    Light SS960 Mod

    I remove the granny ring post only if requested which is about -5 grams, but leaving the post you have the option of going to a 2X set up.

    1SPD: at 469g your arms must be 170mm since that's max reduction of my mod's, but I can get you a few grams on the inner post removal.

    BShow: Remember the Hindenburg

  21. #21
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  22. #22
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    E.13 XC SS Crankset w/BB 180mm w/o Chainring


  23. #23
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    Crazy8-no I'm not worried about it. 5g isn't going to make any difference and you can't see them anyway. Yes they are 170's.

  24. #24
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    Here's another one. I picked up a set of 170mm AKAs to help with pedal strikes.

    Crank - Truvativ AKA 2.1AM
    Weight - 527g (arms/spindle, without spider)
    Spider - 64g
    Size - 170mm
    BB - Truvativ GXP (stock with cranks) - 109g

    PM me if anyone needs a set of 175s.

  25. #25
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    x0 175's with 32t spiderless ring, bottom bracket, all spacers, and hardware. even pedal spacers. 652g

    XTR M985 with 32t ring, bottom bracket and all hardware. 648g

    Those are the only 2 i remember weighing.

  26. #26
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    Hey 1SPD. Thanks for starting this thread.

  27. #27
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    Here are a couple of mine:

    XTR M960, Crazy 8 mod, 170mm
    arms and bolts: 534
    w/BB: 631
    w/BB & chainring (HBC 32T): 660

    SRAM X0 spiderless 170
    arms and bolts: 456
    w/BB: 558
    w/BB & chainring (HBC 32T): 626

    Didn't include spacers in either.

  28. #28
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    Crank:XTR M985 Race cranks
    Brand: Shimano

    Size: 170mm
    weight: 526g for cranksarms + stock XTR middle chainring + Middleburn single chainring bolts

    EDIT: Pictures:





    Had the cranks raceshield-ed. Process was really simple with a thick card, soapy water and some patience.



    My plan next is to change to a Homebrewed Ti chainring using the festive discount on the site now. I hear the XTR rings wear fast.
    Last edited by TheGenTwo; 12-16-2011 at 01:05 PM.

  29. #29
    dru
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    Just to resurrect an old thread: I have Middleburns but don't know if they are RS 7s or RS 8s, so I'll list the heavier weight.

    RS7 with 5 arm spider and 30 T, 541 grams

    SKF BAS 600 BB, 240 grams.

    Not light but apparently indestructible.

    Drew
    occasional cyclist

  30. #30
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    Cannondale SL SS

    175mm Hollowgrams complete, with 110mm spider, 32t HBC Ti, Token BB 30 Tiramic bearing, Token ring bolts, axle, bolts, shims, spacers, and baggy, 534g total.
    Attached Thumbnails Attached Thumbnails SS crank weights-061.jpg  


  31. #31
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    ^^^^ Just ridiculous! I love those cranks but they simply won't work on my old school standard BB Vassago! But for the record, My XTR M960's you coated are still going strong along with my HBC 32t ring! Light enough for me at this point!

  32. #32
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    Quote Originally Posted by 1SPD View Post
    ^^^^ Just ridiculous! I love those cranks but they simply won't work on my old school standard BB Vassago! But for the record, My XTR M960's you coated are still going strong along with my HBC 32t ring! Light enough for me at this point!
    What wouldn't work? I had those cranks on my Jabber and they worked fine.

  33. #33
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    SS crank weights-009-2-.jpgHey 1SPD, You've been running them for several years, a testament to the strength and durability of the mod 960 for SS. To date those are the lightest I've tuned. The bare arms weighed 466g on my scales.

  34. #34
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    Shimano Saint. I don't know what mine weighs, but it's heavy. lol.
    Ghisallo Wheels

    I'm really good looking.

  35. #35
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    Quote Originally Posted by crazy8 View Post
    Click image for larger version. 

Name:	009 (2).jpg 
Views:	210 
Size:	122.9 KB 
ID:	809051Hey 1SPD, You've been running them for several years, a testament to the strength and durability of the mod 960 for SS. To date those are the lightest I've tuned. The bare arms weighed 466g on my scales.
    Yep, still going! Only issue I have had so far is the loss of one chainring bolt! Other than that, no creaking (running an xt bb as I was going to replace/upgrade that when it blew out but the damn thing is still going as well!)

    Not too stressed about upgrading my cranks though I would love to do something carbon with a chain wheel rather than just a ring/spider set up. Something like the Specialized, Sram... I just like the way they look and the weight is the same or less. But until mine break, I don't think I'm going to be too worried about it.

  36. #36
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    Well said! This is something that interests me a lot. Every time I build up a new SS I want to make it as light as possible whilst not sacrificing weight. And cranks/BBs come in so many different flavors....big from me

    In saying that, I'll have to get mine on the scale and reply to this post with decent info. I have a relatively unique setup.

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