Blackburn Trainer Axle Adaptor Kit M12 X 1.0MM & M12 X 1.75MM drumbeat21-616 Regular lubrication of bicycle chains

Regular lubrication of bicycle chains addresses annoying squeaks and noises

The German-engineered alloy frames have internally routed cables and are light and stable to ride

- Reflective logos and highlights

fit system with pinch-guard buckle provides an easy way to fit your kid's helmet quickly and securely

Blackburn Trainer Axle Adaptor Kit M12 X 1.0MM & M12 X 1.75MM drumbeat21-616 Regular lubrication of bicycle chainsTRAINER AND TRAILER ADAPTER KIT 1. 75MM Our thru axle conversion kit can replace the original thru axle on most mountain bikes, to allow for trainer usage. This kit will also allow the installation of a Copilot trainer hitch for most thru axle bikes as well. Works on bikes with 1. 0 OR 1. 75 thread pitches, and hub widths from 135 148mm. HOW TO CHOOSE Choosing the correct axle is simple. First, research which axle spacing your bike utilizes (135, 142