Related Clues:

• Transmission choices
• Shifting things
• A ten-speed has ten
• They're shifted
• They're pushed in the bike lane
• Transmission units
• Swiss watch parts
• Meshing parts
• Goes biking
• Car-transmission settings
• First, second, etc.
• They often get engaged
• Tenspeed features
• Four-on-the-floor options
• Gets ready, with 'up'