SRAM Torpedo hub-
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  1. #1
    mtbr member
    Join Date
    Aug 2007

    SRAM Torpedo hub

    I guess it's out.

    * Hub can operate as fixed gear or freewheel
    * Turn a screw inside the solid axle to change modes, no need to remove wheel from bike
    * 174mm axle, 18-tooth 3/32" cog
    * Shimano Nexus cogs fit this hub
    * 120mm over-locknut, includes kit for changing to 130mm
    * Hub Drilling: 32
    * Hub/Brake Compatibility: Rim Brake
    * Rear Axle Type: 10x1
    * Cassette Body Type: Threaded, Standard
    * Rear Hub Spacing: 120 mm
    * Intended Use: Road
    * Rear Wheel Type: Single-Speed
    * Skewer Included: NA, Bolt-On
    * Weight: 480.0 g

    I just don't know how I feel about it. I guess it's a quicker flip/flop... but without a disc brake what's the point? It seems more road oriented but even then, who is going to switch from fix to free and want the same ratio?

  2. #2
    mtbr member
    Join Date
    Aug 2008
    no chain no gain.

  3. #3
    mtbr member
    Reputation: SSSasky's Avatar
    Join Date
    Mar 2004
    Yeah, I've looked a lot at this, and I just can't see it being that worthwhile. you still have to get out an allen key and fiddle with the hub to change from one mode to the other. Doesn't seem that much easier than flipping the wheel around for the amount of times most people would use the option.

    I'd also be concerned about the durability of the fixed engagement system. I'd like to see some internal diagrams to understand the system thy're using. Is there much slop in the engagement? How will it hold up to skidding?

    Personally, I'm more interested in the Sturmey Archer 3-speed fixed hub, the S3X.


  4. #4
    mtbr member
    Join Date
    Aug 2007
    It'd probably not all the more complicated than this old school freewheel that had a screw that locked the mechanism. It just screwed into a groove.

    The S3X has been almost released for so long... but check out this blog comment:
    "Please do to make the hub S3X available. My wife is liking to get pregnant and maybe need more than just one gear as she get the fat."

    She get the fat.

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