ISCG tabs on Transition bikes?- Mtbr.com
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  1. #1
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    ISCG tabs on Transition bikes?

    Does anyone know if Transition (Bottlerocket specifically) ISCG tabs work with the "old" version, ISCG '05, or both?

    Thanks!
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  2. #2
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    Just the new ISCG05 - fitted an e13 DRS just a couple of nights ago to one.

  3. #3
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    Quote Originally Posted by bettermanNZ
    Just the new ISCG05 - fitted an e13 DRS just a couple of nights ago to one.
    Crap.

    Thanks man. Gotta send this old ISCG guide back.
    Taking it easy for all you sinners.

  4. #4
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    I asked Transition a few month ago about their tabs and NEIL told me they use the old style mounts.

    My 07 did not work with my "old" DRS so I clamped it but I heard from someone in a German forum that a "new" DRS didn't work either.

  5. #5
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    My buddy just tried to put an LG-1 on his '06 Gran Mal witht he iscg '05 mounts and that didn't work, so he had to get the parts for the old ISCG. Honestly, your best bet is to pick up the phone and call transition, get it straight before you order anything.
    "The future belongs to those that believe in the beauty of their dreams."

  6. #6
    Disco-Superfly
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    new iscg andold iscg???
    I dont get it, is it adifferent diameter?
    Jake
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  7. #7
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    There's ISCG(old) and ISCG '05(new) dunno what the difference is but it doesn't make any sense to me as to why you would change an international standard(doesn't that defeat the purpose of having a standard in the first place?)
    "The future belongs to those that believe in the beauty of their dreams."

  8. #8
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    The BottleRocket is ISCG-Old

  9. #9
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    Quote Originally Posted by captain spaulding
    There's ISCG(old) and ISCG '05(new) dunno what the difference is but it doesn't make any sense to me as to why you would change an international standard(doesn't that defeat the purpose of having a standard in the first place?)
    That's the issue. ISCG-OLD didn't have a standard outside of saying how far the holes were apart from each other. ISCG-05 definines more than just that and makes it a lot better as far as chainguide compatibility and tighter tolerances in the complete layout of the ISCG tabs. http://www.iscg05.com/

  10. #10
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    Quote Originally Posted by mtb_biker
    That's the issue. ISCG-OLD didn't have a standard outside of saying how far the holes were apart from each other. ISCG-05 definines more than just that and makes it a lot better as far as chainguide compatibility and tighter tolerances in the complete layout of the ISCG tabs. http://www.iscg05.com/

    ah ok, that would explain it.
    "The future belongs to those that believe in the beauty of their dreams."

  11. #11
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    Quote Originally Posted by mtb_biker
    The BottleRocket is ISCG-Old
    Thanks!

    Sheesh, what a circus. I ordered some FSA BMX cranks and the E13 superstreet (ISCG-old) from Jenson. The drive side BB cup has smashed threads, so I have to return that. Thankfully, I got the E13 on closeout for something like $116!! I decided to go whole hog and ordered the Deity black cranks/BB from ride-this.com.

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  12. #12
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    i talked to kevin today on the phone cuz i had the same question for my dirtbag which is ISCG old. i would think they'd use the same mounts on all their frames.

  13. #13
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    My '07 BR has the old style tabs.
    I don't think Transition uses ISCG05 on any of their frames.

  14. #14
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    Does anyone have any feedback on the best guide. I currently have a SRS w/36T bash, I am thinking since the botom bracket is somewhat low on the BR that a 32T bash may buy me some extra height?

  15. #15
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    Quote Originally Posted by stunzeed
    Does anyone have any feedback on the best guide. I currently have a SRS w/36T bash, I am thinking since the botom bracket is somewhat low on the BR that a 32T bash may buy me some extra height?
    The height diff will be small between the 36 and 32 bash guards (E13).

    But I went with a 26T and bash for the same reason. Lots of climbing around here, and I wanted a single ring setup.
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  16. #16
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    it was actually an inch when I measured

  17. #17
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    Quote Originally Posted by stunzeed
    it was actually an inch when I measured
    Really? An inch difference in radius is hard to believe.

    I'll check that out when I get home too....
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  18. #18
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    I'm calling BS on the 1" difference. It should be about .32" Chain links are 1/2" each. Therefore the difference in circumferance from a 32 to a 36 is 2". c=(2)(r)(3,14). So a 2" change in circumference means that the change in radius (r)=(2)/((2)(3.14))=.318"

  19. #19
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    Quote Originally Posted by Hardtails Are Better
    I'm calling BS on the 1" difference. It should be about .32" Chain links are 1/2" each. Therefore the difference in circumferance from a 32 to a 36 is 2". c=(2)(r)(3,14). So a 2" change in circumference means that the change in radius (r)=(2)/((2)(3.14))=.318"
    I suspect he's measuring full diameter....could be wrong though.
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  20. #20
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    e13 bashguard diameter sizes

    32T-155mm
    36T-169mm
    40T-185mm
    42T-193mm
    44T-201mm

  21. #21
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    169-155=14 14/25.4= .551 .551/2=.276 So you gain .276" clearance by dropping to a 32t.

  22. #22
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    Sorry I measured again and its just under 3/4 inch which is still a great gain

  23. #23
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    Quote Originally Posted by stunzeed
    Sorry I measured again and its just under 3/4 inch which is still a great gain
    And remember, you're only gaining half that much clearance. Half the length you're loosing is off the top, so it has no effect on clearance.

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