H2 Racing Development TRF420 spool cups
H2 Racing Development have introduced these new direct spool cups for the Tamiya TRF420. If you have problems with your kit spool cups breaking this ne version is more rigid than the original aluminium and steel cup. Made with 7075 aluminium alloy with anti wear coating it is a direct replacement for the original and has minimum play in between the universal joint ball head and shaft cap. Weighing less than 2 grams per piece, they are sold as a pair.
Source: H2-RD [h2-rd.com]