Originally Posted by
cyqlist
My old touring bike with a hybrid "quarter step plus granny" gearing system which I built in the early 1980's and retired in 2000:
Originally Posted by
cyqlist
18 and 21 tooth cogs on a Sturmey Archer AW hub (a half-step in itself)
Cool! I always wanted to do something similar by making my old 12-speed hybrid into a 24-speed: 42-40 / 14-16-18-20 on a Sturmey-Archer AW.
Originally Posted by
cyqlist
And here's a 48-45-34 triple, using Stronglight middle and inner chainrings
modified to fit on a 119mm BCD Zeus crank. A smaller inner bolt was used
to allow the 34 to work with a bolt circle intended for a minimum of 36 teeth.
48-45-34 is indeed a superb combination with a 2-tooth progression in back. I got mine using a standard 110/74mm BCD mountain bike crank, although I could have done it with a 110mm compact double and my extra long 3-ring stack bolts and spacers.
Originally Posted by
cyqlist
52 and 48 TA chainrings and a homemade 21 tooth granny
You, sir, have taken gear freaking to a whole new level. Frank Berto would be proud of you!
__________________
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069