You can get them off the ‘bay for next to nowt, I paid £4 for a pair.
They’re HK1512 needle roller bearings, you’ll need 2.
To get the old ones out you can use a long 10mm socket and a small drift.
1 – Undo the bearing pre-load caps, remove them.
2 – Undo the 2 M4 grub screws that hold the axle in place.
3 – Drift the axle out with the 10mm socket.
4 – Swing the chain stays down.
5 – drift old bearings out.
6 – press new ones in.
7 – repeat 4 to 1 backwards and use plenty of grease.
Press the new ones in with a stubby 10mm socket and a G-clamp or a bench vice. Plenty of grease too.
Takes about 30 minutes
Simples
