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  1. #1
    Traversing the windy bits
    Reputation: Freaky_Freitag's Avatar
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    Sep 2004
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    New question here. IGH's capable for steep hills?

    Hi there, I've tried searching but wasn't able to find much of anything so I'll just come out and create a new thread.

    I'm thinking of either installing a IGH (Alfine, Rohloff, i-Motion, doesn't matter) in an older steel rigid to make it into a commuter, but in South Korea there are some pretty monster hills (10+ degree grade).

    Would any of the current 8-gear hubs be able to handle 200-250 lbs of hard cranking up a hill in granny gear?

    Thanks!
    "The road we choose is rarely the path we follow." ~ARO

  2. #2
    mtbr member
    Reputation: Andy R's Avatar
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    Quote Originally Posted by Freaky_Freitag View Post
    I'm thinking of either installing a IGH (Alfine, Rohloff, i-Motion, doesn't matter) in an older steel rigid to make it into a commuter, but in South Korea there are some pretty monster hills (10+ degree grade).

    Would any of the current 8-gear hubs be able to handle 200-250 lbs of hard cranking up a hill in granny gear?

    Thanks!
    You mean hills of 10% gradient (ie. 1in 10) ? I'm nowhere near your weight (more like 150lbs) but I've been regularly using an Alfine 8 on off-road stuff a lot steeper than that (like frequently 20-25%) for a couple of years and have found no problems. I'm running the Alfine geared at 32:23 too, so pretty low.

    However, I'm considerate to it, in that I don't expect it to change under load and I'm pretty smooth in my climbing style. Also I think that gearing down well is kinder to the hub than running higher gearing but having to hammer your way up a climb as if you were on a singlespeed.

  3. #3
    1*14*29*2.1 & 1*1*29*2.4
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    a rohloff gives you mtb gearing so you'd have no problem on one of those. Same as Andy, 20-25% frequently on and off road.

  4. #4
    Frt Range, CO
    Reputation: pursuiter's Avatar
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    May 2008
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    If you don't shift under load, the Alfine 8 and the new Nexus 8 are bullet-proof. If you go with a Nexus 8, be sure to get a newer 8C31, 8R31, 8R36 version, Don't buy an older Nexus 8C20, 8R20, 8C25, 8R25 versions, they don't have good sealing and tend to breakdown.

  5. #5
    Glove Softener
    Reputation: GiovanniPeletonni82's Avatar
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    Dec 2007
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    I am over 250 lbs and I beat the hell out of my Alfine 8 on all sorts of terrain and it works fine. There is an increased risk of causing failure the lower your input gear ratio, IMHO. I use a 44:22 chainring:sprocket ratio right now and I have never had a problem, but sometimes with very steep hills I wish I had a lower gear. Many others use lower gears without problems.
    Don't do what Donnie Don't does.

  6. #6
    PRETENDURO
    Reputation: Leopold Porkstacker's Avatar
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    Apr 2010
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    I’ve been doing steep climbs (15% - 30%+ grades) with a 32x18 on my Alfine 8 for about a year now, and no problems 4,800 miles later. I am hard on equipment… yet I “only” weigh 175lbs.
    QUOTE from MTBR.COM: You have given Brewtality too much Reputation in the last 24 hours, try again later.

  7. #7
    Master of None
    Reputation: presslab's Avatar
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    I've ruined my Alfine 8 and Alfine 11 both the same way, with a smashed 2nd gear pawl. This was not due to missing shifts. I'm 205 lbs.

    Go for the Nuvinci.

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