Don't buy these bearings for your RD400

[Hawaii-Mike]

This set of FSA bearings showed up on an e-bay search.  Seemed like a great price for front and rear bearings but these are not for a Yamaha RD400.  Apparently there are bicycle hubs with the same name.

[RDryan]

Good heads up. Yeah FSA is a big name in the bicycle industry. They make or is it brand and sell?...a whole lotta headset bearings(steering stem in motorcycle speak) as well as bottom bracket bearings(again crank in motorcycle speak)...LOL.