Please help identify - crank bcd size?

[Enid_Puceflange]

Guys,

I have a pair of shimano cranks (fc-mc16)

And I am at a loss trying to figure out the bcd size :?

I have measured between the bolt centres and its just under 40mm,

Having looked at Sheldon Browns website and using his conversion ratio

for 5 bolt cranks, apparently I should multiply the between the bolt size by 1.701 to get the B.C.D

Doing this it works out at 68mm :? :roll:

I know that 68mm is ok for 4 bolt, but these are 5 bolt

Can anyone shine some light on these?

Cheers

Gc

 

[FluffyChicken]

It's Alivio and 67mm BCD


EDIT not even SJS sell that size and doubt you'll find any.

 

[IDB1]

They're the doodah ones aren't they. .

 

[taffy]

Alivio - shimanos's not really replaceable "all 3 chainrings tackwelled into 1" design.

 

[Enid_Puceflange]

So,

Pish then?

G

 

[FluffyChicken]

Use it as a shiney hammer.

 

[Enid_Puceflange]

Thats Funny

I HATE Cranks

Gc

 

[mikee]

lighter than m900 with the spider

want one ?

 

[Enid_Puceflange]

OOooohhhhhh

Thats nice Mikee, home made ?

Thanks dude, but Im just gonna move them on, not really needing them

I got some nice cranks for the Sv

Gc

 

[mikee]

think this is what christine's wearing for me at the moment