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ISCG OLD or, ISCG 05 with ISCG 03 mounts

lazyarseholelazyarsehole Posts: 1,693
edited December 2010 in MTB workshop & tech
I have recently purchased a Trek Scratch Air and I want to ditch the outer chainring on the triple and fit a Dual Chain Guide. I have used e*thirteen guides before and was looking at the DRS guide, which comes in two option: ISCG OLD/BB Mounts and ISCG-05... The problem is that the Scratch has ISCG-03 tabs on it... Which would be the better fit?!

Posts

  • Pete-CPete-C Posts: 353
    Fairly sure ISCG 03 is another name for ISCG old, but to double check measure the distance between the bolt holes - if its 47.77 and 47.79 then its ISCG old, if they are 55.92 its ISCG new
    "Its all fun and games till someone gets hurt, then its hilarious"
    Pitch Comp
  • iscg.jpg

    OLD is on the left. 05 on the right
  • Pete-CPete-C Posts: 353
    Ahh thats the pic there - could remember the numbers but not where i saw the image
    "Its all fun and games till someone gets hurt, then its hilarious"
    Pitch Comp
  • Sorted ... ISCG-03 is indeed the ISCG-OLD .... I find it a little strange how I have two bikes, frames produced in the same year, but have different ISCG tabs - the Scratch has the old ones and the P7 has the 05...
  • the 05 is due to E13 standard I think. something they introduced.
  • Pete-CPete-C Posts: 353
    Yeah E13 mainly with a few other manufacturers. Confusingly they thought it up and released it in 2003 instead of the name 2005
    "Its all fun and games till someone gets hurt, then its hilarious"
    Pitch Comp
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