All- I agree with Steve. With a track axle installed in a road hub(campy) one way to get proper chainline on a 120mm wheel is to use that lockring as a spacer under the cog...where it would work almost as well as a lockring! Tight track cogs only loosen with extreme "backpedaling", however,the only way to prevent a cog spinning off are the left threaded lockring or brakes. If you are using a road frame campy road dropouts are thicker and the track axle length is borderline too short. Use a track spaced quick release axle on the road, no tools to carry. Back in the day it was said "with a 65 you can ride anywhere". Having ridden fix gears on the road for 30 years I favor the 61 to 68 inch range. You will find that a stiff cog allows you both to climb in a bigger gear and obtain higher rpms in a smaller gear. The effect for me is that 65 gives an 55 to 75" effective range. Within extreme fix gear range(100k) from my house I can and have climbed from sea level to over 4000' and challenged myself on grades up to 22% of various lengths(long downhills are more of a problem). I have cheated by using a 72" riding among those variable gear contraptions on those race paced "training rides". T. Shaw Santa Clara, California where all the hills are steeper than they were decades ago!
> From: "Stephen Barner" <steve@sburl.com>
> Date: Fri, 12 Mar 2004 08:59:07 -0500
> To: <classicrendezvous@bikelist.org>
> Subject: Re: [CR]Track hub Newby question
>
> We recently had a thread on the topic of threading track cogs onto freewheel
> hubs (a pun there). Personally, I hold the opinion that a satisfactory
> setup is not likely to result from the use of a right-hand threaded
> lockring. Perhaps your mileage will vary, but it didn't work for me when I
> tried it 30 years ago.
>
> But, this brings up a survey topic. We are just starting the season up here
> in northern Vermont, where we have plenty of hills. You fixed gear riders
> out there...what are you running for gear ratios, and what kind of terrain
> are you riding? We did a similar thread at the end of last winter, but it
> would be interesting to see if anything has changed.
>
> --Steve Barner, Bolton, Vermont, where it is forcast to start snowing again
> in a couple of hours.
>
> ----- Original Message -----
>> Date: Thu, 11 Mar 2004 20:58:45 EST
>> From: Bikerdaver@aol.com
>> To: classicrendezvous@bikelist.org
>> Subject: [CR]Track hub Newby question
>>
>> Hello-
>> I have never done any track racing nor have I ever had a single speed, but
> I
>> am thinking that might change. I have a newby question that is probably
> easy
>> to answer for most folks on the list, so I could use some help. Are the
> threads
>> on a regular freewheel hub compatible or equal to the threads on a track
> hub?
>> That is to say if I have a Campy NR track axle complete with washers,
> nuts,
>> cones, etc., can I replace it with the axle assembly in a regular Campy NR
> hub?
>>> From what I know, it seems to me that the amount of threads to mount a
>> freewheel are basically the same amount for the track cog. Am I just doing
> some
>> wishful thinking or what? Cheers
>>
>> Dave Anderson
>> Cut Bank MT