frequent

  1. Superpacman13

    Titanium Retainers

    We have produced a set of titanium valve retainers for RC390's, you may ask why we would do such a thing? We have found that with extended high RPM usage the stock valve retainers will fail. The angles between the collets and the retainers do not match well enough for them to hold they valve...
  2. M

    Being a single

    Will this engine be reliable and last? Will it be like a dirt bike engine and need rebuilds and work on a frequent level? What do those in the know have to say?
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