As explained, it is in addition to the upper chain plate. On the TMEC the lower chain return would ride on top of a cross member and wear it out if this roller did not exist. The crap rubber one that came on the bike wore out in 20 miles and the chain was rubbing metal to metal. Not cool.
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Originally Posted by bogieboy
would this be in place of the slider on the swingarm or in addition to it? i dnt believe my shineray has a roller in the system, but it does have the rubber slider on the swingarm...
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