Who makes the 2005 on up primary for BDM (with the concave covers)?

No H2O

Active Member
I am trying to switch the sprocket and derby covers on my 05 chopper DT.
The primary looks to be the same as any of the 05 on up BDMs.
I want to change the sprocket and derby covers that currently have that pushed-in concave look to the old school bubble style that sticks out as seen on the 2004 and earlier models and all the harleys.
No luck searching on Big Dog covers since (for the derby cover) it's either the 3-bolt old school Big Dog style or the same as I currently have.
Perhaps if I searched on the Manufacturer/Model of the primary I'd get more options that would fit.
Anyone know who makes it and what model?
 

bdm7250

Guru
Supporting Member
I am trying to switch the sprocket and derby covers on my 05 chopper DT.
The primary looks to be the same as any of the 05 on up BDMs.
I want to change the sprocket and derby covers that currently have that pushed-in concave look to the old school bubble style that sticks out as seen on the 2004 and earlier models and all the harleys.
No luck searching on Big Dog covers since (for the derby cover) it's either the 3-bolt old school Big Dog style or the same as I currently have.
Perhaps if I searched on the Manufacturer/Model of the primary I'd get more options that would fit.
Anyone know who makes it and what model?
It was manufactured by Baker, DSSC primary, never took off and was only used on BD's. You won't find any covers to make it look like a softail style primary.
 

mjsk9

Well-Known Member
Last edited:

No H2O

Active Member
Now I'm confused (I'm not that smart), I always thought impunity meant an exemption from negative consequence(s) so I meant to confirm that I can remove those covers and everything will run as it should (i.e. no fluid leaking out).
Judging from the pic from the service manual it may not be the best look but we'll see.
 

Jersey Big Mike

100K mile club
You could have a set machined for you. Any shop with a CNC setup should be able to do it.
Mine's not built yet but custom cover on the primary is one of the things on my long term list to try.
 

No H2O

Active Member
One thing I considered was switching the entire primary cover but the stock one sells for $500 and I've already spent more than expected on this bike. If I were to go the machined route, at that price I'd consider an open primary
 

No H2O

Active Member
I agree, those covers are a lot better than stock but looking at that makes me realize I don't care for the primary itself, even with the nice covers.
Open primary is tempting if it weren't for cost and the risk of a small stone getting caught up in the belt
 
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