Advertise on Bikeforums.net



User Tag List

Results 1 to 5 of 5

Thread: Internal hubs

  1. #1
    Member unclebird's Avatar
    Join Date
    Sep 2008
    Location
    North Carolilna
    My Bikes
    Mercier SS, Raleigh Rush Hour, Dahon Helios, Marin Fairfax, 86 Bridgestone 450, Raleigh Detour, Motobecane Mirage...
    Posts
    35
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Internal hubs

    Why no internal hubs on Mtn bikes? Whats the down side?
    "No good deed goes unpunished"

  2. #2
    ed
    ed is offline
    . ed's Avatar
    Join Date
    Oct 2005
    Location
    The Summit of Lee
    My Bikes
    2010 Jamis Parker, 2005 Jamis Komodo, 1998 Jamis Komodo, 198? Raleigh Pointe, 1978 Schwinn Super Le Tour 12.2
    Posts
    10,929
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Well if it's truly an internal hub...you would have no way to access the spoke holes. The hubs have to remain external so you can attach a rim and tire. There are alot of internally geared external hubs on MTB's these days that you should check out too!

  3. #3
    Frozen in carbonite Grimlock's Avatar
    Join Date
    Oct 2004
    Location
    Ottawa
    My Bikes
    '85 Full Cycle Cycle.
    Posts
    798
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The biggest reason likely has to do with the way internally geared hubs work. Because it is a planetary gear system, it depends on a completely straight axle. If you bend an axle on your Alfine or Rolhoff, not only will you not be able to shift but your wheel won't roll at all. Bike manufacturers aren't likely to spec an internal that is even remotely likely to seize on the trail.

    If your version of mountain biking involves lots of doubletrack or flowy rollers, go right ahead and retrofit your hardtail. If your typical ride is a little more jarring, with drops and square-edged hits, wait for the unobtainium-axled version.

    For full disclosure, I am a huge fan of internals. I'm still thinking of putting an Alfine 11 on my Kona Unit for commuting, winter XC riding and lighter xc fare. I wouldn't put one on my five inch dually.
    Quote Originally Posted by sp00ki View Post
    Using a nicer sealed bearing headset vs a $10 set is like throwing a frisbee vs a dodgeball.

  4. #4
    In search of moar cowbell dminor's Avatar
    Join Date
    Oct 2004
    Location
    The 509
    My Bikes
    1971 Suzuki TS125/ factory race kit/AHRMA-legal; 1969 Suzuki TS250/factory race kit; 1967 Suzuki K-15 Hillbilly Trail 80; 1977 Yamaha IT175; 1964 VanTech Scrambler racing frame
    Posts
    12,128
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    ^^ If I still had my Blindside, I'd have toyed with an Alfine. From what Dannihilator tells me, it's one that *may* be up to the rigors. Unfortunately, the Yeti is 150 hub spacing.

  5. #5
    Frozen in carbonite Grimlock's Avatar
    Join Date
    Oct 2004
    Location
    Ottawa
    My Bikes
    '85 Full Cycle Cycle.
    Posts
    798
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Every time I ask our Shimano rep if Alfine is rated for offroad use yet, he says no with a wink. According to no one in particular, he says there are tons of people doing it already. All of them, I guess, armed with the knowledge that if they case a landing they won't even be able to roll the bike out but carry it out.
    Quote Originally Posted by sp00ki View Post
    Using a nicer sealed bearing headset vs a $10 set is like throwing a frisbee vs a dodgeball.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •