DYNAMIC Pocket Sprocket Chain Keeper sealant Perfect for those using Polar

Perfect for those using Polar CS series sensors

Street Elbow

Its eco-friendly materials and practical design make it ideal for outdoor and indoor use

Hang the bag to dry

DYNAMIC Pocket Sprocket Chain Keeper sealant Perfect for those using Polar3D printed Recycled plastic Suitable for 12 mm thru axles Portable Planet Friendly Cleaning your drivetrain is a breeze with the Pocket Sprocket. Simply slide it over your 12 mm thru axle, put the chain in the groove and clean or lubricate your chain, chainrings and derailleur with ease. Remove the rear wheel from your bike. Insert the thruaxle in the non driveside of the frame and slide the Pocket Sprocket over it. Route the chain in the groove of