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  1. #1
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    5 Bolt Variable Tooth / Wide-Narrow / Wolftooth chainrings?

    Just this summer i updated my cranks to a new set of middleburn X8 with a 94mm BCD 5 bolt spider on my Kona Rajin with a 1x9 drivetrain (I also got a 110 spider i can switch out). I still like 5 bolt spiders because they resist bending and bolt breakage better than just 4 bolts. Right now i'm using a Bashring with a MRP XC type upper chainguide, which doesn't quite work as it should because i had to rig it a bit to not interfere with the bashring. I'm going to switch to a new type 2 derailleur and wanted to switch to a new variable tooth profile ring in hopes of losing the guide altogether, but all I can find are 4bolt rings, direct mount rings, and 5 bolt 110 in 36T+ (Cyclocross) sizes. I want a 30 or 31T if possible, or 32T max chainring in 94 bcd, or 110bcd.

  2. #2
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    Afraid you have pretty much answered your own questions.......

  3. #3
    NedwannaB
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    Quote Originally Posted by 006_007 View Post
    Afraid you have pretty much answered your own questions.......
    Right. Wait, there was a question in there?
    Wait,who did he tell you that?....

  4. #4
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    Quote Originally Posted by JMac47 View Post
    Right. Wait, there was a question in there?
    Duh! i guess i never did get to the actual question... Can I get one of those? I guess the answer is no. I guess I'll have to break down and get a 4 bolt spider from Middleburn if i want to try it.

    I also have a 2nd question. Which does the most to keep the chain on, they type-2 damped/clutch rear derailleurs, or the Variable tooth profile rings?

  5. #5
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    for starters..you wont find a variable tooth design in a 31 tooth. for enders..its a toss up on what keeps the chain on the best, some will say the chainring, and other will say the clutch. some guys run regular derailleurs with a wide narrow chain ring and drop no chains, others run just clutch derailleur on normal chainrings and don't drop any chains, me personally, i run both.

  6. #6
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    I think i'm just going to upgrade the derailleur for now, keep the 94mm 31T 5 bolt ring and try it without the guide and see how it goes. I'm using a 9sp 11-34T XO cassette. When its time for a new cassette and chain, and I can up to a wide range 36T or bigger cassette, I'll decide if its worth going with a variable tooth 32t or bigger chainring. I'm sure There will be other offerings on the market by then. I think you're right, 32T is the smallest you can probably go with 104mm 4 bolt.

  7. #7
    NedwannaB
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    Quote Originally Posted by gomestr View Post
    Duh! i guess i never did get to the actual question...
    I have to break down and get a 4 bolt spider from Middleburn if i want to try it.
    Yeah, sometimes one just needs to write something down to figure it out. As for the 5 vs 4 spiders, my understanding is the 4 arm/bolt is stronger, contrary to what is thought as more is better.

    Quote Originally Posted by gomestr View Post
    I also have a 2nd question. Which does the most to keep the chain on, they type-2 damped/clutch rear derailleurs, or the Variable tooth profile rings?
    Ditto to ryandurep on this, some even run both and a top guide of some sorts:

    Race Face Narrow/Wide Chainring Review - Page 10
    Wait,who did he tell you that?....

  8. #8
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    From my own experience with single ring setups I've had the best luck with 94mm 5 arm, which is almost impossible to find anymore. the 4 bolt setups i have used were stock oem with pretty cheap rings, so that contributed to their failure. I always use a bash ring now for impact protection, and it helps a little with chain retention. I have been trying different upper guides, but have trouble getting them to work mix n match style with different size rings and guards, plus you get something that just looks like a bulky front derailleur. I'm ordering an X9 type 2 short cage from my shop today.

  9. #9
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    Wolftooth officially announced a 94 BCD narrow wide last week. I am guessing 30t is the lowest?

  10. #10
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    Quote Originally Posted by GnarBrahWyo View Post
    Wolftooth officially announced a 94 BCD narrow wide last week. I am guessing 30t is the lowest?
    This is great! Where did you see that? They aren't up on the products page at wolftooth yet. Thanks.

  11. #11
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    Quote Originally Posted by miwuksurfer View Post
    This is great! Where did you see that? They aren't up on the products page at wolftooth yet. Thanks.
    I think they said they will start shipping mid-Feb. That is what their customer service folks told me via e-mail inquiry.

  12. #12
    dadamamabooboo
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    op, if you're gonna leave the ring alone for now, consider a jump stop. it mounts on the seat tube, is quite unobtrusive and completely effective for chain drop to the inside. i'll post a link to my thread about it. i use it for my 2x, but discovered most who are using it are using for a 1x system not running a NW ring:

    14+ teeth? Jump-Stop! Best value in the market
    2011 Trek Mamba 29er 21", SRAM 10-sp X9, X9 type 2 RD, SRAM X7 20(oval)/36 & SRAM X9 2X FD, Shimano XT M771 11-36, M525 hub

  13. #13
    dadamamabooboo
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    oh yeah..i forgot..it's all of $12..
    2011 Trek Mamba 29er 21", SRAM 10-sp X9, X9 type 2 RD, SRAM X7 20(oval)/36 & SRAM X9 2X FD, Shimano XT M771 11-36, M525 hub

  14. #14
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    Following up on my old thread: These guys: 5 Bolt 94mm BCD Chainring Now seem to offer them as an option on a "made-to-order" basis. but not cheap ($98 for an annodized ring).

    Also: I'm going back a while now but i had also heard about Wolftooth offering 94mm chainrings. As far as i know, they never did any 95mm 5 bolt rings. There is a 94mm 4Bolt BCD (for Sram), that is what (I Think) they were referring to. They did end up making 5-Bolt 130mm and 110mm CX rings down to 34T.

  15. #15
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    I had a jump stop/outer ring setup originally, and still had trouble dropping the chain. Also, i have very limited rear tire clearance for a derailleur type clamp. so most of these won't fit. I did run an MRP E-type BB mount cage type guide that worked well, but my new frame has a pressfit BB shell. I picked up a clamp type guide, but ran into a a few problems: Tire clearance, and incorrect guide angle to clear both the chain AND the chain guard. (I still run a bash ring). so for now I am running HALF of the guide (took off the outer half of the cage) to clear the bashring. It works OK, but it's clunky, and ugly.

  16. #16
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    Did they specifically say they were 5 bolt? I'm going back a while now but i had also heard about Wolftooth offering 94mm chainrings. There is a 94mm 4Bolt BCD (for Sram), that is what (I Thought) they were referring to. They did end up making 5-Bolt 130mm and 110mm CX rings down to 34T. If they were going to do 94mm 5 bolt, I'd like to know for sure.

  17. #17
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    I should have looked first! They do have them now, (But its made specifically with built in spacers for surly cranks): 94 mm BCD for 5-bolt Cranks ? wolftoothcomponents.com.

  18. #18
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    I should have looked first! They do have them now, (But its made specifically with built in spacers for surly cranks): 94 mm BCD for 5-bolt Cranks ? wolftoothcomponents.com.

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