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  1. #1
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    42t (or>36t) Cassette sprocket/adaptor for Shimano 10 speed?

    Hi all,

    I was trying to change my current 3 x 10 drive train to a 1 x 10.

    To get a low enough gear for the hills around my area I figure a 30 x 42 should be enough.

    I was going to use a Wolf Tooth Cycling 30t which is compatible with the XTR cranks.

    What I was tring to find was an aftermarket 42/40 tooth for the XTR cassette.
    Basically I want to remove the 11t and replace it with the 42t.
    I saw they had one of these that worked for SRAm but could not find one that worked with Shimano.

    Any ideas (Other than buy XX1!)?

    Cheers.

  2. #2
    Always Learning
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    Quote Originally Posted by October26 View Post
    Hi all,

    I was trying to change my current 3 x 10 drive train to a 1 x 10.

    To get a low enough gear for the hills around my area I figure a 30 x 42 should be enough.

    I was going to use a Wolf Tooth Cycling 30t which is compatible with the XTR cranks.

    What I was tring to find was an aftermarket 42/40 tooth for the XTR cassette.
    Basically I want to remove the 11t and replace it with the 42t.
    I saw they had one of these that worked for SRAm but could not find one that worked with Shimano.

    Any ideas (Other than buy XX1!)?



    Cheers.
    41 Tooth Cog for Mountain Bike Cassette 41T Sprocket | eBay

  3. #3
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    Looks spot on, anyone used one?

  4. #4
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    I have used the "rev A" version of that cog in 38 tooth version. I bent it. I run a 29 middle tooth chainring and was climbing some pretty steep stuff with it.

    I've had great luck with the Action Tec Ti. Their website isn't the greatest but emailing them will get info you need. They are super helpful.

    Action Tec Home Page

  5. #5
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    Hi,

    You have pictures of the TEC action 39 teeth?
    it is compatible 10-speed?
    it is good?

    thank you

  6. #6
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    Sorry, I don't have any pictures of the 10 speed stuff. I'm running 9 speed. My buddy in CA has been running this (the 38t Action Tec) for several years now. He got a 10 speed spacer to replace the 9 speed spacer.

  7. #7
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    I ran the 41T option as mentioned above fine for a few rides before I just ended up switching entirely over to XX1. The quality is pretty good. Mine never bent during usage.

  8. #8
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    Quote Originally Posted by drrider View Post
    Hi,

    You have pictures of the TEC action 39 teeth?
    it is compatible 10-speed?
    it is good?

    thank you
    OK, so here's some pictures of the set up on my 9 speed. Like I said earlier, my friend's running the same up except with 10 speed and the 10 speed spacer. 42t (or>36t) Cassette sprocket/adaptor for Shimano 10 speed?-dscf2392.jpg42t (or>36t) Cassette sprocket/adaptor for Shimano 10 speed?-dscf2393.jpg42t (or>36t) Cassette sprocket/adaptor for Shimano 10 speed?-dscf2394.jpg42t (or>36t) Cassette sprocket/adaptor for Shimano 10 speed?-dscf2395.jpg

  9. #9
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    If you're going to remove the 11T, why wouldn't you just change your chainring instead? The whole point of the 42T, is to gain a larger gear RANGE. You negate this by removing your 11T. All you're doing is adding weight. You could install a smaller chainring for $50 and accomplish the same thing. Please correct me if I'm wrong.

    It would make more sense to remove the 17T cog. Then you would have a 11-42T cassette

  10. #10
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    Quote Originally Posted by gooded View Post

    It would make more sense to remove the 17T cog. Then you would have a 11-42T cassette
    And, if you (or any friends) have any road cassettes laying around, replacing the 15t with a 16t will give you a somewhat better jump. (I haven't tried it, but have been playing with the 1x10 notion for a while)

  11. #11
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    Hi,

    I makes this sytem and it works well though.








  12. #12
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    That's a damned fine idea. I must have several 42 chainrings in the garage sitting redundant so they're might be a use for them after all. Is the centre piece laser cut? Do you have the dimensions by any chance? I use AutoCad so if there's a drawing available I'd be a very happy man. Regardless, I'm still interested to know how you've made it.
    Cheers and a prosperous new year,
    pojic

  13. #13
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    Thank you for your compliments.
    Yes it is done with a laser.
    I work in solid works.
    Leave me your address I will send the part.
    cordially

  14. #14
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    That's very good of you Malarky. I live in South Wales, UK so I don't know what the postage would be. I can pay for the postage by PayPal. I will send you a private message with my address if that's what you want to do.
    I can understand if you don't want to send me the drawings, but if you do, could you send dxf or dwg files?
    Thanks,
    pojic

  15. #15
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    Quote Originally Posted by melarkry View Post
    Hi,

    I makes this sytem and it works well though.







    Excellent use of recycling parts that would otherwise be unused! I cant even remember how many 42T rings I have removed from my cranksets and sent off to the big recycling bin in the sky.

  16. #16
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    42t (or>36t) Cassette sprocket/adaptor for Shimano 10 speed?

    Quote Originally Posted by 006_007 View Post
    Excellent use of recycling parts that would otherwise be unused! I cant even remember how many 42T rings I have removed from my cranksets and sent off to the big recycling bin in the sky.
    This is a great idea!!!


    Bikes I currently have. 2014 Trek Fuel EX 8 29er. 2013 Trek Mamba 29er.

  17. #17
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    I found this today, I can't afford it and my hub probably can't take the torque. OneUP Components 42-tooth sprocket ? first look - BikeRadar and here is the link to the website itself. OneUP Components 42-tooth sprocket ? first look - BikeRadar

    Cheers
    So Cal Rod

  18. #18
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    Quote Originally Posted by teachndad View Post
    I found this today, I can't afford it and my hub probably can't take the torque. OneUP Components 42-tooth sprocket ? first look - BikeRadar and here is the link to the website itself. OneUP Components 42-tooth sprocket ? first look - BikeRadar

    Cheers
    Sending my adapter in the U.S. can

  19. #19
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    44T !!!!!!!



  20. #20
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    I did both of these about 3 months ago and they seem to shift just fine.

    Here's a cheap do-it-yourself alternative to SRAM's 42 tooth cog

    I had the same basic idea myself, although I filed out the spiders to fit the freehub body by hand. I have alot of practice with that kind of thing so it came out pretty clean.

    Here's a pic of my own spider-adapter with a ramped 36t ring, and a 42t largest 'cog'. The 2nd spider here is also hand-filed. I next cog down when I use this one is 34t. The shift from the 34 to the 42 is not particularly fast but it works well enough for trail riding.


    I'd love to buy a spider that is machined though. Melarky,
    How much would one of these spiders be ? It's a great idea.
    Attached Thumbnails Attached Thumbnails 42t (or>36t) Cassette sprocket/adaptor for Shimano 10 speed?-redline-spider-36-42-chainrings-cogs-conversion-2.jpg  

    42t (or>36t) Cassette sprocket/adaptor for Shimano 10 speed?-redline-spider-36-42-chainrings-cogs-conversion-3.jpg  

    42t (or>36t) Cassette sprocket/adaptor for Shimano 10 speed?-12-42-seven-speed-4.jpg  


  21. #21
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    here is my manufacturing, assembling 38 to 44 teeth


  22. #22
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    Could you sell one of these ? How much would it cost in $USD ?

  23. #23
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    adapter
    4 screws
    brace
    transport

    68 dollars.

    the adapter works perfectly with trays of 38-42 teeth and I even do a test is 44 teeth.

    thank you

  24. #24
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    Awesome idea. Could you also send me the drawing please? Will this fit shimano 9 speed?

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