adamt Posted June 9, 2019 Share Posted June 9, 2019 Hi all, I have a worn center/cluster gear on my original Optima. It's the 41/18t thing. A simple replacement of these appears to be expensive and difficult to get hold of. What are my options? I don't think the re release gears fit without replacing the whole lot, Inc diffs. Are there other options Vs the original, direct replacement? Quote Link to comment Share on other sites More sharing options...
terry.sc Posted October 5, 2019 Share Posted October 5, 2019 Look out for the Kyosho Ultima gear set, part UM-1. While the Ultima layshaft is different to the Optima the spur gear is the same part. Quote Link to comment Share on other sites More sharing options...
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