Crank - Sugino XD2 - Wide/low double 40t x 26t
Wide range, low gearing double in a familiar 110 x 74mm bolt circle pattern.
This is great for those who prefer the simple set-up and quick shifting of double cranks; riders who do a lot of steep climbing off-road and coasting down hill; commuters who stop and go a lot in a hilly city.
Both rings and the aluminum chainring guard are top notch Sugino made quality with a satin finish. The big 40t x 110bcd ring is aluminum for lightness while the 26t x 74bcd granny gear is nickel plated steel for durability.
Cold forged aluminum arms will last many years and look great all the while.
Use it with a 107-110mm square taper (JIS) bottom bracket--either Shimano, Tange, or IRD.
Your choice of 170 or 175 mm arms.
After you do a few thousand miles of riding you'll need to get new rings. Bad and worn-out rings have shark fin lookin' teeth, and will chain-suck when shifting.
Sugino 40t or US made 40t and Sugino 26t. And the light and pretty Sugino chainguard.
Not good for 10- or 11-speed drivetrains!