Kyosho Optima/Mid/Ultima RC Ball Differential - OTW101C Attack Aircraft and this kit is the

and this kit is the direct solution

and the rubber seals help keep out dust and debris during bashing sessions

0 lb/in spring rate

the SPMA3181 is the genuine Spektrum spare for the job

repeatable way to dial in suspension settings before and during race day

Kyosho Optima/Mid/Ultima RC Ball Differential - OTW101C Attack Aircraft and this kit is theThe 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