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I've never had to look for external headset bearings before. I need a replacement set for a Prestine Pt-F17A ID34/47 headset.
I measured the old lower bearing, but it came up as 52x41x9, which doesnt seem to fit any standard (probably because it is totally knackered!).
I've emailed Genesis, but no reply yet and I really need to sort this for monday if poss
cheers
I bet @sillyoldman will know. He's a Tarn rider and knows a bit about them.
Thanks Lucky, missed that!
Specs on Prestine site are correct. Genesis spec has a typo as it’s a 34/44mm headtube rather than 34/47mm.
Lower bearing https://www.freewheel.co.uk/m-part-elite-headset-r425-bearing-40x51-8x8-45x45-ec44-ec49-is52-hpt0417