Kyosho Optima/Mid/Ultima RC Ball Differential - OTW101C

The Kyosho OTW101C is a ball differential unit designed as a direct-fit replacement for the Kyosho Optima, Optima Mid, and Ultima vintage RC buggies. Ball differentials offer smoother and more consistent power distribution compared to standard gear differentials, making this a worthwhile restoration or rebuild component for anyone returning these classic 1980s off-road machines to running condition. If you're sourcing RC car parts to bring a Kyosho Optima or Ultima back to life, the KYOOTW101C is the correct ball diff for those platforms.

Key Features

• Direct replacement ball differential for Kyosho Optima, Optima Mid, and Ultima buggies
• Provides smooth and consistent torque distribution across the driven axle
• Suited to vintage RC buggy restoration and rebuild projects
• Kyosho OEM part number OTW101C ensures correct fitment for these classic platforms
• Compatible across all three Optima/Mid/Ultima model variants without modification

What's Included

• Kyosho OTW101C ball differential unit

What You Need

• Kyosho Optima, Optima Mid, or Ultima RC buggy chassis for installation
• Appropriate tools for differential removal and installation (screwdrivers, hex drivers)
• Differential grease or oil if not supplied with the unit