If you can measure it all accurately or have the headset make and model you will be able to order new ones online. If not, pop to your LBS and they should be able to sort you out for under a fiver. You'll have to take your bike or old bearings or both with you.
If you can measure it all accurately or have the headset make and model you will be able to order new ones online. If not, pop to your LBS and they should be able to sort you out for under a fiver. You'll have to take your bike or old bearings or both with you.