Topic starter
as title - how big is the hole?
Posted : 08/06/2012 12:02 pm
9mm . . . ish.
Posted : 08/06/2012 12:13 pm
M8
Posted : 08/06/2012 12:17 pm
Digital caliper and Renthal chainring says 10.01mm
Posted : 08/06/2012 12:21 pm
And the bolt is 9.94mm
Posted : 08/06/2012 12:22 pm
Assuming it's Shimano triple then tech document would suggest M8 x 9.2.
[url= http://techdocs.shimano.com/media/techdocs/content/cycle/EV/bikecomponents/FC/EV-FC-M760-2261D_v1_m56577569830608893.pdf ]Clicky[/url]
As there's two conflicting replies then probably best to measure with a vernier caliper.
Posted : 08/06/2012 12:35 pm
M8 is the thread size.
The holes in the chainring match the external diameter of the female threaded half of the nut & bolt, which has got to be bigger than the thread itself.
Posted : 08/06/2012 12:39 pm
You're right. 😳 I assumed OP meant the thread.
Note to self; must learn to read!
Posted : 08/06/2012 12:47 pm