tripple ring crank sprockets
can i replace only the large sprocket on a 2012 trek 7.2?
Is this a good question?
Looking through all the data available, including that at Shimano, indicates that the rings are riveted onto the crank.
Which means that no, you can not replace only one ring at a time.
If there is damage to just one ring, you'll need to replace the crankset all together.
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