more double ring chain guide issues

bowesey4
bowesey4 Posts: 40
edited February 2011 in MTB workshop & tech
Hi, has anyone fitted a chaingude to an alpine 160? I bought the cheap superstar guide, and i run a hollowtech crank. Took the cup off after removing the crank arm and fitted the guide. The giude fits flush to frame, howeverthere is a couple of mm gap between the mounts and the device. I was happy to live with this but then was unable to fit the cup back to the bb.

Does anyone have any advise as to how i can resolve this? Is this guide not appropriate for my frame and crankset? Spoke to superstar and they have advised it should just bolt on... Not the case i'm afraid.

Cheers
Michael

Comments

  • The Rookie
    The Rookie Posts: 27,812
    bowesey4 wrote:
    The giude fits flush to frame, howeverthere is a couple of mm gap between the mounts and the device.
    Photo or an explantion where you don't change the word you use for each part so I/others can understand what you are saying!

    What mounts, what device and is the device the mount you mention earlier?

    Simon
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.
  • nicklouse
    nicklouse Posts: 50,675
    so, even though you have ICSG tabs you bought a BB mount device?

    what is the BB shell width?
    what cranks are you running?
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • Hi sorry for my mistaken terminology...

    The chain guide is this one:

    http://superstar.tibolts.co.uk/product_ ... cts_id=336

    Recommended by Superstar for my frame... advice was to remove the bb mount and bolt directly to the ISCG tabs. Needless to say when i did this i couldn't get the hollowtech cup back on.

    Now the advise from Superstar is: If you are running iscg then you attaché it with the BB cup in place of a spacer and then use the ISCG mounts to fix it back to stop rotation.

    This is only meant for HT2 style cups, which will fit through the inside hole and work as a spacer. The BB shell and ISCG mounts should be on the same plane, if they are not then the frame is not made to the standard correctly and you will need to use the washers provided to space it out to the correct chainline.

    I personally dont think i can use this guide on my frame with my chainset... which is
    Deore Hollowtech II Double Chainset with Bash FCM545... any further advise whould be good.
  • nicklouse
    nicklouse Posts: 50,675
    so which one did you get the ISCG and BB mount?

    or the ISCG 05?

    what is the BB shell width?
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • nicklouse wrote:
    so which one did you get the ISCG and BB mount?

    or the ISCG 05?

    what is the BB shell width?

    I got the ISCG and BB mount... here are a couple of photos

    IMG00564-20110205-1946.jpg

    IMG00566-20110205-1946.jpg
  • The Rookie
    The Rookie Posts: 27,812
    Not sure what that is trying to show!

    Pic of guide mounted behind cup with gap you describe please.

    Simon
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.
  • Hi, i will get a picture of this tonight... problem is when the guide is mounted the cup will not go back on.
  • bamba
    bamba Posts: 856
    So the threads on the bb do not run deep enough with the device in place, is this with any spacers or not ?
    Is there enough metal on the device to allow you to grind it to enlarge the hole so it fits over the bb and the be bolted using the mounts ?
  • bamba wrote:
    So the threads on the bb do not run deep enough with the device in place, is this with any spacers or not ?
    Is there enough metal on the device to allow you to grind it to enlarge the hole so it fits over the bb and the be bolted using the mounts ?

    "So the threads on the bb do not run deep enough with the device in place, is this with any spacers or not ?" - Correct this is without spacers

    "Is there enough metal on the device to allow you to grind it to enlarge the hole so it fits over the bb and the be bolted using the mounts ?" - There probably is enough space to grind off enough to allow it to fit over the shell yes. To do this would require some form of grinder though?? Any ideas what type of tradesman / shop would be able to do this??
  • bamba
    bamba Posts: 856
    Drill with a small grinding wheel or even a sanding flapper type thing, or a dremel , i had to do some fettling to mine to give it some clearance.
    some thing like this, probably a bit smaller

    http://cgi.ebay.co.uk/80mm-Flap-Flapper ... 500wt_1156
  • Still having issues, even after home improvements.

    Can anyone advise me of a double ring chain guide they have successfully mounted to a 2011 Alpine 160?

    Cheers