To save his knees, the owner of this beautifully preserved 34-year-old Centurion Semi-Pro updated to a 14-30 freewheel and 52-42-30 chainrings.
He reports that the 144 triplizer was a perfect fit for the original Sugino Super Mighty crankset. Replacing the original 112.5mm spindle with a 118mm Sugino MT-68 spindle--purchased as new old stock [NOS] on Ebay-- provided the correct chainline.
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Although designed for a double, the original Suntour Mk II front derailleur easily handles the triple, with adjustment to spare.
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A nice Tom Kellog-built Spectrum with a 52-42 and what appears to be a 30-tooth inner ring.
A circa 1976 Raleigh Gran Sport outfitted with what its owner (circa 1952) describes as "geezer crossover gearing"--a 46-37 double in front and a 14-17-21-26-32 freewheel.
Who doesn't love that swimming-pool blue?
The Peugeot PX-10 was an icon of the 1970s bike boom, but not everyone had the legs for one: Although it theoretically left the factory with a 52-42 crankset, quite a few arrived in the US with a 45- or 47-tooth second ring. Combined with the usual 14-23 freewheel, that made for tough going on hills.
This newly triplized example seems to date from about 1972.
This newly triplized example seems to date from about 1972.
Classic good looks, functionality, and compassion for suffering humanity--a 52-42-28 triple. Life is good.
Another PX-10, this one sporting nice long-cage Simplex Super LJ derailleurs--a definite cut above the original "Prestige" model. In the owner's words:
"What an absolute fantastic product the triplizer is. I now can ride my old PX10 wherever I want, no longer having to plan routes that avoid hills (almost impossible here in SW Washington). One of my favorite things about the triplizer is how unnoticeable it is, I use a 28 tooth inner gear and you can't even see it from the front. I'd like to thank you very much, and my knees are forever in your debt."
"What an absolute fantastic product the triplizer is. I now can ride my old PX10 wherever I want, no longer having to plan routes that avoid hills (almost impossible here in SW Washington). One of my favorite things about the triplizer is how unnoticeable it is, I use a 28 tooth inner gear and you can't even see it from the front. I'd like to thank you very much, and my knees are forever in your debt."