http://bike.shimano.com/publish/content/global_cycle/en/us/index/products/0/alfine/product.-code-SG-S700.-type-.html
It tripped my Google search term alert.
5th gear is direct drive- I think.
.995%.
VERY nice for a day tour bike!
Yup. I'm in love.
Waiting on price.
You heard it hear FIRST.
Wednesday, September 1, 2010
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2 comments:
D: no direct drive? That's a deal breaker...
An unusual feature of the 11 speed Alfine is that no gear is a direct drive from the sprocket to the hub, though 5th is close. Running a 32 tooth chainring with a 22 tooth sprocket gives gear ratios from 0.77:1 to 3.13:1, so all the way from a 22:28 bottom gear to a 44:14 top gear. Can't find anything on torque carrying capacity apart from loads of people who've given 8 speed Alfines a trashing with similar ratios and not had problems, so hopefully it's okay.
http://raleightwenty.webs.com/regearingthetwenty.htm
Nice summary of quirks of each gear hub.
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