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it does not contain Caffeine
14 g Black
Size:  27
X-Series (with 3-bolt adapter plate)
Birzman Chain Wear Indicator - 1-12 Speed Red it does not contain CaffeineThe Birzman chain wear indicator tool measures wear and stretching on single to 12 speed chains, so that you know when its time to replace it. A worn chain causes poor shifting performance and reduces the service life of sprockets and chainrings by wearing down the teeth. Regular checking for chain wear and a timely chain replacement prevent costly premature replacement. 11 and 12 speed chains should not be stretched more than 0. 5%. When using
US$ 32.99
US$ 35.99
US$ 96.00
