3 of 3 people found the following review helpful
does the job,
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This review is from: Shimano Tourney FC M131 chainset with chainguard 48 / 38 / 28T 170 mm (Sports)
Slightly disappointingly the outer guard is made of plastic but this is not really a problem. The chainset seems to have worked well over the last month or so. What more could be asked of a mechanically fairly simple part?