The STACYC 19 mm Handlebar Conversion Kit is purpose-built to give your little ripper better grip and more control. The kit upgrades 12eDrive and 16eDrive bikes to the 19 mm diameter MINI BAR with 28% smaller grip diameter. By reducing the grip diameter kids are able to fully grasp the handlebar the same way an adult rider grasps a traditional size handlebar. Better grip, more control, increased confidence. 28% smaller grip diameter allows kids to fully grasp the handlebar, providing more comfort and control. Smaller diameter offers a better hold on the handlebar while operating the brake. Complete Kit mounts in your original 25.4 mm stem (black stem) on 12eDRIVE and 16eDRIVE models. Kit includes: 19 mm handlebar, throttle assembly with wire, grips, bar plugs, shim for brake perch. Updated throttle assembly modeled after the 18eDrive and 20eDrive with on/off button and LED indicator lights.