The Motorcycle for castle forks spindles are usually built up of EN16 or EN24T steel. It’s a high carbon harden steel with a small springiness that allows it to flex and best spare parts of the of the motorcycle. You might good memory for motorcycle and spare parts of the repair service center providing the gelomans. This type of steel is important, because brittle steel would simply snap under heavy use Castle forks. “The motorcycle castle fork bushes were originally a high copper use to materials of the motorbike. There have been far eastern replications with castle fork legs machined from solid spare parts of the two wheeler. These were, of course, very heavy motor bike in Harley Davidson JD and Harley Davidson VL. But there must be someone in this Old Harley Davidson is making decent replicas for the Harley restorers of the motorcycle spare parts.