metal. this is the kit i bought
http://www.ebay.co.uk/itm/Replacement-Bearing-Kit-to-fit-Speedplay-Zero-X1-X2-Light-Action-Ti-Stainless-/292110796879
I used a pick to get the snap ring out, you can buy them in sets quite cheaply
excellent! thanks for the info!
@dscorpio started
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metal. this is the kit i bought
http://www.ebay.co.uk/itm/Replacement-Bearing-Kit-to-fit-Speedplay-Zero-X1-X2-Light-Action-Ti-Stainless-/292110796879
I used a pick to get the snap ring out, you can buy them in sets quite cheaply