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asYmmetriC integration (ai) - si holloWgram
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DRIVE & NON-DRIVE SPACER:
Please note the location and size of the non-drive and drive side spacers
(opposite page)
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Ai SPIDERS:
Specific spiders have been developed for the Ai driveline. They are manufactured to
accomodate the 6mm offset present in the frame. Note that the spiders are laser etched on the inside
faces with the specific chainring BCD and chainring compatability.
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137mm SPINDLE:
The 137mm spindle used must be “Ai compatible.” A compatible Ai spindle will have
bearing lands (areas shown shaded )that are 5mm wider than the previous revision 137mm spindle. Older
revisions of the 137mm MTN spindle are not Ai compatible, but an Ai compatible spindle will work fine on
older 137mm cranksets.
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RH CRANKARM ASSEMBLY
:
As evident in the upper illustration, the RH Crankarm, Spider, and Spindale
are inserted into the BB as an assembly with the 9mm drive side spacer and bearing shield added
beforehand. It is important to apply a high-quality bearing grease to the areas indicated in the lower
illustration and also note the application of Loctite 242 (blue) a removable thread locking agent.
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FD SPACERS:
The front derailleur spacers are necessary to move the position of a derailleur outboard.
You can see that the spacers attach directly to the frame and the derailleurs are then fitted to the
spacers. Please note that the spacers are etched with the type of derailleur. These spacers are available
as kits. See Replacement Parts in this supplement.
6mm
6mm
