Premium 3-in-1 Bike Chain Checker & Wear Indicator - Accurate Chain Measurement Tool for Bicycle Maintenance - Perfect for Road Bikes, Mountain Bikes & Cycling Enthusiasts
$5.65
$10.29
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- Verified Buyer
特にチェーンたわみは、手作業（メジャーあてる）で確認できるのでいらんかったかな。そんなシビアに計測する必要もなさそうです。
