In 2002 Doug White decided the world needed a better freewheel, so he made one.  Since then White Industry freewheels have been the standard to measure everything else against.

Specs

• Fits both 3/32 or 1/8 chains
• Threads: 1.375” x 24TPI
• High Engagement: 6 pawls and 72 points of engagement (Standard Engagement freewheels have 3 pawls and 36 points of engagement)
• Pawls are heat treated S7 tool steel
• Driver made from heat treated 4130 steel
• Bearings are Enduro chromium steel bearing packed with a special Mobil XHP222 extra high pressure grease
• Lockring colour:
  • Purple
• Freewheel measurements for chainline calculations:
  • All freewheels are 18.4mm wide
  • On single freewheels (standard and discontinued Trials) center of teeth are 9mm from the inner base of the threads
  • On double freewheels inside teeth are 6.1mm from the inner base of the threads and the outside teeth are 11.8mm from the base. Teeth are 5.7mm apart center to center