Im going to order my prop today and i need to know what the PCD to specify on the engine end.

Can anyone confirm the PCD on an MK supplied sprocket adaptor?

I have a sprocket adaptor but its blank ie no holes drilled and tapped.

Thanks

i took my adapter flange in to get it sized up. Mine was more than just holes, the guy also made the 'centre bore' fit right. Ie to help centralise the flanges. Not sure if yours is the same design, mine was from attitude roadsters.

When I ordered mine from D&F they didn't even ask.

I just told them it was a bec and it lines up perfectly.

MK supplied my prop adaptor and propshaft. They only line up two ways, if you know what I mean. The holes appear to be two pairs, rather than evenly spaced.

Not sure if that makes sense!

Mike

Well when i say its blank its not totally blank.

I bought one off Ebay and it fits the splined shaft perfectly and NSdev made me a packing washer so all is fine except that it appears to be a bigger overall diameter then most others i have seen and have a larger hole spacing (PCD) than most too..

When fitted i have approx 1mm clearance between the adapter edge and the casing of the engine. As seen below.

What i need to do is have it machined down in diameter and the smaller pcd holes drilled to match.

I just need to know the spacings as my prop will be mail order and i want to make sure i order a prop with the smaller pcd flange.


[img][/img]

Measurements for my adapter are approx 46mm between one pair of holes and 54mm between the other.

Mine are approx 60 and 68mm apart.

you have u2u