I was never a big fan of half-step and have preferred crossover shift patterns ever since I read Frank Berto's articles on gearing in Bicycling magazine back in the late 1970s. Anyway, I used the late Sheldon Brown's online gear calculator to see what would be possible with 52-46-42. If you use a 13-23 six-speed freewheel you get a "lazy man's" crossover pattern with eight usable gears - but no double shifts. Maybe that's what the original owner of this triple had in mind.
Steve Whitting
Prairieville, Louisiana USA
Website at http://ciocc-cat.angelfire.com/
From: joeb-z@comcast.net <joeb-z@comcast.net> Subject: Re: [CR] Campy Racing Triple To: "Andrew R Stewart" <onetenth@earthlink.net> Cc: rdf1249@aol.com, classicrendezvous@bikelist.org Date: Monday, May 31, 2010, 9:36 PM
So how would you lay out a freewheel to take advantage of this crank? My guess is that the overlaps would defeat the purpose.
Actually, I think that combo will be particularly ugly .
Joe Bender-Zanoni
Whitneyville, CT
If the goal with a triple crank is to achieve lower gears then this one doesn't get you there. If on the other hand it is to get closer ratios then this one is spot on.
On Mon, May 31, 2010 at 1:59 PM, <rdf1249@aol.com> wrote:
>
> Here is what they used to call a racing triple:
>
> http://ebay.com/
>
> He mentions it is32-42-52 but I count 42-46-52. Seems unnecessary.
Yep, can't be a 32 with a 144 BCD. In fact I can't see the point of a 144 BCD triple at all, but honestly there's not a lot of downside either. It could be worse, it could be a 151 BCD triple:
Kurt Sperry Bellingham, Washington USA _______________________________________________
Andrew R Stewart
Rochester, NY