I have two Viscount "Aerospace Sport" models from 1976 (23 and 24 inch, both with 22-1/2" TT) and both of these have Sugino Maxi cranksets with tapered, pressed-in bottom bracket. These bikes came with chromed steel forks, Shimano "50" front and "Tourney" rear derailers, plus their in-house hi-flange, cartridge-bearing hubs, centerpull brakeset, sculpted stem and lightweight bars. Hex bolts and socket heads appear to all be inches, and the crank bolts have extra-fine threading. I recall working on one of the more upscale "Aerospace" models back in 1976! I had to restore the crankarm's puller opening in order to pound-then-screw in my Park 2-sided puller, since the arm's threaded opening had been scraped heavily against something. I can't recall why I had to pull the arm off, or if I was perhaps just trying to restore the threaded bore to fit a new cover, but I did get one side the puller to screw in. That one definitely had the round-holed chainring, though, not the three-armed Maxi cranks on mine.
David Snyder Auburn, CA usa
Jeremy Rauch wrote:
> I can offer a datapoint here -- about 6 months ago, I bought a NOS
> Viscount bottom bracket
> spindle. Its original packaging was labeled "Tapered Axle", part number
> BYC-01368-C0-00,
> and was in fact tapered. I have no idea if they were made to match a
> Viscount crank, or
> if they later switched to a different crankset, while keeping the same
> press-fit bearing style
> bottom bracket.
>
> On Sep 14, 2007, at 10:01 PM, Harvey Sachs wrote:
>>
>> Anyone remember Viscount cranks with taper? I only remember the
>> parallel-sided ones.