All you have to do is look at the spacing between the bolt and inner circle
. It's 151.
It's only rare because it's the old size and they made them with the extra
edge for strength so they wouldn't collapse or pretzel when the sprinters
put so much pressure on the power train that either the bike went forward or
something broke.
Plese don't get alarmed children, not rare, just what Campy did to make it a
legend in it's own time.
Make it strong to last and perform, or make it light and wonder when it will
fail.
Or spend a fortune which still may not have helped to make LIGHT and STRONG
if the metallurgy and technology did not exist except maybe in Buck Rogers'
imagination.
Ted Ernst
Palos Verdes Estates
CA USA
> Maybe you're not the ignorant one....
> But I can only once recall seeing reenforced Campy Pista chainring. I
> don't know what the BCD is of this particular ebay crankset.
>
> Mark Buswell
> 'Still enjoying the Campy Pista crankset (144bcd) Galen sold me' in San
> Francisco, CA
> USA
>
>
>
>
> On May 14, 2007, at 8:12 PM, galen pewtherer wrote:
>
>> Excuse my ignorance, but what makes that one rare?
>> It looks like the honking great reinforcing I've seen on 151 BCD
>> track rings (I don't know that the one pictured is 151 BCD, but I
>> don't think I've seen it on 144 BCD rings before, so maybe that's what
>> makes it rare).
>>
>> The listing also includes a 52t chainring, but doesn't say if it's got
>> the same reinforcement.
>>
>> Galen 'rusty German' Pewtherer
>> San Francisco, CA USA
>>
>> On 5/14/07, Mark Buswell <mark@sisuhome.com> wrote:
>>> RARE?! Campagnolo Pista Chainring / Crankset on German ebay:
>>>
>>> http://tinyurl.com/
>>>
>>> Check out the reinforcing on the ring.
>>>
>>> Mark Buswell
>>> SF, CA USA
>>>
>>>
>>> _______________________________________________
>>>
>>
>>
>> --
>> -galen