soane- the diff balls are size 3/32 if you go to rc bearings.co.uk the ceramic ones are 90p each you will need 12, or the metal ones are 20p each
damselfly- go to rcbearings.co.uk and you can get a full set of bearings for the madrat for £8.50 and you have the choice of rubber sealed or metal sealed, i would suggest using the rubber ones
|