Specifications include, but are not limited to: 1. Group A - United Bicycle Supply, Parts: Satori stem riser, Model: Zoom Heads Up 11/8” extension silver. 2. Group B - Wheels Manufacturing, Bicycle Parts: Hub axles, hub cones, hub bearings for industry manufactured hubs. 3. Group C - Ergon-Ergonomics, Bicycle Accessories: Handle Bar Grips: Ergon GP1 Grip compatible with Rapid Fire shifters and Twist Shift shifters, Sizes: Small and Large. 4. Group D - Cane Creek, Bicycle Parts and Components: Cane Creek, Models: 40-SERIES headsets, Cups and Covers: 6061 T-6 Aluminum, Crown Race: Durable steel crown race with low friction face seals Interlok space compatible. Crane Creek cup press tools to use with headset cup press tool. Cane Creek 40-SERIES headset parts. 5. Group E - I-Force Bikes, Light/Siren Kit Replacement Parts: Battery charger with a charge time of 2 hours, battery run time of 14 hours, integrated battery 17.9, 360 degree Flashers with 16 flash patterns, 2 flash color choices, blue and white LED lights for simultaneous rear rack tail light, left side rear rack, right side rear rack and head light flashers, Vehicle grade siren, one front white light and one blue front light, handle bar push control switches for lights and siren. 6. Group F - Master Lock, Model #8290DPS Bicycle Lock 9- Link Street Cuff: The contractor will furnish and deliver 2 Replacement Master Lock, Model #8290DPS Street Cuff to Chicago Police Department. 7. Group G - Cannondale USA, Bicycle Parts: Cannondale USA, Bicycle part, Derailleur Hangers for Cannondale bicycle frames.