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A modern bicycle helmet should be fashionable
Zero loss technology
we highly advice not to use pliers for cutting shift/brake wires and spokes
compatible with 12 speed 10-51T cassettes
Not compatible with hookless rims
Pro Chain Wear Indicator Chainring Guards / Bashguards A modern bicycle helmet shouldHow to use the tool: To alleviate poor shifting and uneven drive train wear, most manufacturers recommend chain replacement at or before 0,6% stretch. Now you can quickly and accurately determine the wear and stretch of any chain. Simply insert the chain checker`s pins into two links, press the swing arm gauge tight, and then check the gauge window for an accurate reading.
