Thanks everyone for the advice.
Originally Posted by
mudboy
One thing to consider is if you can get the additional "height" you need from just taking away from the top lug, do that; removing material from the lower lug will (very slightly) alter your bike's geometry.
Excellent advice!
Originally Posted by
unworthy1
The DA already has smaller balls than typical (which is why its SH is lower than most) and I would not substitute even smaller balls since the radius (ai) of the races/cups is designed for the contact of those balls.
Hmm, that’s interesting since I seem to recall the ball bearings were quite large, larger than I’ve seen used in a headset before. I'll have to open it up when I get home. I bought the headset used. I wonder if it has the wrong size balls. Do you know what is the correct size bearing for the DA 7400 headset?
Originally Posted by
Ex Pres
I'd probably go with a shorter stack headset. Any chance something like the 7200, 7410 or a period 600 model would work?
But that would be the easy way out!

Almost everything else on the bike will be DA 740X, so I'd very much like to use the headset if I can.
Originally Posted by
unworthy1
Bernie Mikkelsen (Alameda, CA) did it for 2 of my forks, one went from threaded to threadless and his work is perfect...he was charging about $65, but I heard his price has gone up. Ideal guy for gaucho777 since he's in Berkeley, but those of you outside the SF Bayarea will have to find a local framebuilder who does as good a job as Bernie (or ship it to him).
Great to know! Thanks.