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  1. #26
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    This here would seem like an option, a pretty good fit for a 42.
    http://www.jbi.bike/web/checking_pro...t_number=18078

  2. #27
    squish, squish in da fish
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    34 to 42 jump? idk about that.

  3. #28
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    yup sounds like a big jump

  4. #29
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    Sorry, I was thinking that it was a reasonable proportion to other jumps on the cassette, and as far as # of teeth, not as large as the 24-34 jump on a mega-range freewheel.

    I'm afraid I'm digging myself a hole here with my frequent reference to low end components...

  5. #30
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    I'm gonna try one of these e*13 40t cogs w/ my 9-speed set up.
    Ships later this month.
    First Look: e*thirteen Extended Range Cog - Pinkbike

  6. #31
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    Quote Originally Posted by client_9 View Post
    I'm gonna try one of these e*13 40t cogs w/ my 9-speed set up.
    Ships later this month.
    First Look: e*thirteen Extended Range Cog - Pinkbike
    reasonable price from E13

  7. #32
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    after 19.9mi ride last weekend

    40T sprocket on a 1X9 system.. working awesome ;)-dscf1317.jpg

  8. #33
    The Fastest of Bananas
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    Just thinking out loud, would you be able to use a 9 speed shimano shifter and derailleur? Or would the derailleur not be able to handle the 40t?

  9. #34
    The Fastest of Bananas
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    Also, just thinking again, ideally one could get a PG-970 and use thinner spacers and a one-up to make a 10 speed cassette without the nasty jumps?

  10. #35
    rebmem rbtm
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    VERY interesting! I have a 11-34 HG50, Is it possible with this one? I guess I'd have to remove one in the middle and add the 40. Is it easy to separate the bolts? Any spacers needed? I was planning to use this 40T:

    Hope 40T T Rex Rear Cassette Sprocket Range Expander Shimano SRAM Compatable | eBay

  11. #36
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    hey, nice one!!

    I am surprised you were able to use a 40t cog with zee since zee is only supposed to only have 11t - 36t range.

    That brings up a potential concern: I see in your vid you can shift to the 40t cog just fine, but when you are in your 11t, is there slack in the chain? Ie: the zee doesnt have 11t-40t range so your chain will not be under adequate tension in the 11t cog if it can shift comfortably in and out of 40t.

  12. #37
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    yes it works great, shifting is smooth and no slack on the 11t.
    im with N/W up front and no chain drop.

    i just get back from a desert ride and it still works smooth, didnt had to tune it yet

    Mountain biking

  13. #38
    fly on the wall
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    Thanks for the update and checking out unknown territory for the rest of us!
    ~Always avoid alliteration.

    Channel: http://www.youtube.com/user/NearlyFr...ew=0&flow=grid

  14. #39
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    I wounder if I can use Shimano Zee derailleur with Shimano XT shifter ?

    Thanks

  15. #40
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    Hello everyone.

    I adapt my old van change 9v X-0 to 10v
    Anyone know if I can put a 40T sprocket
    OneUp Components - OneUp Components Sprocket

    Thanks
    Name:  900678d1402607099t-40t-sram-x-0-9v-mutated-10-possible-captura.jpg
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Size:  47.0 KB

  16. #41
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    i would love to try this but i think a 32 to 40 tooth jump might be to much for my x7 derailleur? if the shimano cassette works with sram derailleur? i might try it and get the 36 tooth.

  17. #42
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    Quote Originally Posted by perebor View Post
    Hello everyone.

    I adapt my old van change 9v X-0 to 10v
    Anyone know if I can put a 40T sprocket
    OneUp Components - OneUp Components Sprocket

    Thanks
    Name:  900678d1402607099t-40t-sram-x-0-9v-mutated-10-possible-captura.jpg
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    Hello

    Could you explain how you adapted the 9speed X-0 to 10,please?

    thanks

  18. #43
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    In ForoMTB.com is a person who adapts to changing 9v 10v

  19. #44
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    Hi "client_9", did you get a chance to try the e*13 with 9 speed set up ?

    Thanks

    Quote Originally Posted by client_9 View Post
    I'm gonna try one of these e*13 40t cogs w/ my 9-speed set up.
    Ships later this month.
    First Look: e*thirteen Extended Range Cog - Pinkbike

  20. #45
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  21. #46
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    looks good...

  22. #47
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    Interesting...never heard of SUNRACE

  23. #48
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    Ha! did this with X7 short cage and two different SRAM PG970 cassettes mixed and matched. One 11-32 and a 11-34.
    40T sprocket on a 1X9 system.. working awesome ;)-wp_20140918_002.jpg
    Installed new Fouriers (Taiwanese company, do they also manufacture for One-up?) 40T ring. Got this because I live in Asia and it's reasonable price and easy to find.

    I had been thinking about exactly the setup I wanted for a while. So went 40-34-28-24-21-18-15-13-11 which gives a lovely flow to the cassette profile, because gaps are 6t-6t-4t-3t-3t-2t-2t.
    Read other reports and had previous a look at the rear derailleur B-screw and realized it needed to be wound out, also the pointy nature of the screw at full stretch was too much and digging in and causing small alloy flakes on the rear derailleur thing that sits on the hanger. Took out the b-screw and put it in backwards, near max extent but made sure some was poking through the other side, perfect. Next put on a new 9 speed SRAM chain PC991, wrapped the chain round the cogs plus 4 links.

    Works well enough, well OK some of the ramps on the different SRAM cassettes don't match up perfectly pretty worn cassettes and an old rear derailleur don't help much, and it can be a bit slow to shift up to the 40t, still rest of gears no worse than it was before.
    Pretty happy, not perfect but close enough for me. I wouldn't recommend a 42T, seems too much for this RD, it might be possible if you had a 12-36 cassette and/or maybe a different RD. Still fail to understand what cage length has to do with shifting, I thought that was to accommodate front rings.

    Just busts a few myths....

    -You must have a medium or long cage RD to run a 40T extended cog! (not true)
    -You must have a clutch type RD. (not true)
    -You can only run extended range on 10 speed. (not true)
    Longer term I might choose an SRAM 10 speed or Shimano XT cassette and 10 speed chain with a Zee RD and shifter, or it's good enough might leave it for longer.

  24. #49
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    Good job!

    good to hear

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