Date: 30-10-25  Time: 00:40 am

Author Topic: C-spanner for headset  (Read 2181 times)

Bretty

  • Naughty Corner
  • WSB Pack Hound
  • *****
  • Posts: 753
C-spanner for headset
« on: 17 August 2016, 12:35:49 pm »
Hi all,

What size C-spanner do you need to adjust the head bearings?

Can you use the one in the tool kit for the rear suspension adjustment? Or will I need to order one? And if so what size do I order?

Thank you!

Brett

Jules-C

  • WSB Pack Hound
  • *****
  • Posts: 501
Re: C-spanner for headset
« Reply #1 on: 17 August 2016, 01:41:01 pm »
I'm not sure of the size but it's a lot smaller than the shock absorber c-spanner

joebloggs

  • Naughty Corner
  • GP Hero
  • ******
  • Posts: 1,566
Re: C-spanner for headset
« Reply #2 on: 17 August 2016, 03:56:41 pm »
Hi all,

What size C-spanner do you need to adjust the head bearings?

Can you use the one in the tool kit for the rear suspension adjustment? Or will I need to order one? And if so what size do I order?

Thank you!

Brett
Tap it round with a flat bladed screw driver, set the bearing and lock it up.

Punkstig

  • GP Hero
  • ******
  • Posts: 2,191
Re: C-spanner for headset
« Reply #3 on: 19 August 2016, 03:01:42 pm »
What Joe said, I'll add don't tighten it more than a quarter turn to start with!

His Dudeness

  • Naughty Corner
  • GP Hero
  • ******
  • Posts: 2,801
Re: C-spanner for headset
« Reply #4 on: 19 August 2016, 04:42:49 pm »
I bought one off ebay a good while back that you could attach a torque wrench too with an adaptor. The link that I have to the one I bought doesn't work anymore but I think it was a 43mm one. I'm not 100% sure on that. You can measure your headstock bearing to confirm it. Here's a link to a similar one
http://www.ebay.co.uk/itm/43mm-STEERING-STEM-HEAD-STOCK-C-SPANNER-WRENCH-43-/152186361142?hash=item236f039536:g:X9UAAOSw3mpXJPur

me_groovy

  • Cager in Training
  • Posts: 8
Re: C-spanner for headset
« Reply #5 on: 29 August 2016, 11:24:09 pm »
I use the screwdriver tapping method too, have done on all my bikes.

midden

  • Naughty Corner
  • GP Hero
  • ******
  • Posts: 2,546
Re: C-spanner for headset
« Reply #6 on: 30 August 2016, 10:24:25 am »
Have you got a old bicycle spanner they have a c spanner

Bretty

  • Naughty Corner
  • WSB Pack Hound
  • *****
  • Posts: 753
Re: C-spanner for headset
« Reply #7 on: 30 August 2016, 04:45:12 pm »
It's all sorted now thank you! It's a ridiculously low torque on these splined nuts. Literally finger tight, then a couple of taps either way to adjust. Locking nut is not much more. I just worked through the Haynes manual and didn't need a c spanner.

Cheers!