Related Clues:

• Zips
• They may be stripped
• First, second, reverse, etc.
• Photographers' concerns
• Adjusts
• They may be shifted or stripped
• See 16-Down
• Bicyclist's choices
• Track records
• Goes too fast
• They have limits
• Puts the pedal to the metal
• They're sometimes stripped
• Does 80, say
• Camera settings