Andy B wrote:
Yup it is plastic, I got one free with the mag ages ago, no idea where it is now though.
I certainly wouldn't use it on a bike it doesn't look up to the job IMHO
That said, the original Aheadset specification is for a plastic top cap. So it snaps rather than allowing the bearings to be over tightened. People only started using alu caps cos they look nice!
My Ritchey headset came with a plastic top cap, which is deffo up to the job, it's just the Mint Sauce freebie is very flimsy and nowhere near the quality of the Ritchey one (it's about 1/2 as thick)