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Can anyone tell me the size of the needle bearings that go into the main pivot on a Nicolai Helius CC?
Please!!!
Cheers Steve..
cheers mate
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
HK1512 if i remember correctly
diamond - cheers mate