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  1. #1
    Junior Member jahwind's Avatar
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    Strumey Archer Thumb Shifters for Brompton 3 Speed

    Are the Strumey Archer thumb shifters for the 3 speed an indexed shifter, friction shifter, or both?
    It looks like it will work as a bar end or mounted on top of a flat bar...
    I'm wondering if a Dura Ace bar end front 3 speed shifter would work on the Brompton?

    Thanks,
    Brian

  2. #2
    Senior Member dorkypants's Avatar
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    The S-A thumb shifter clicks: I suppose that makes it "indexed", though S-A predates so-called indexed shifting by a few decades.

    I use a SRAM Gripshift made for a MTB triple crankset as the shifter for my Brompton's S-A 3-speed hub. It works fine, though I have it mounted on the left of straight/flat bars so that the numbers on the shifter read right side up from my riding position. It does make it sort-of backwards, as "1" is high gear and "3" is low. Odds are a Shimano bar-end shifter for triple crankset would also work.

    I don't know if it's still true but 3-speed S-A hubs used to be finicky about the cable tension. If you didn't set it quite right, shifting into the middle gear would put you into "neutral", where you could spin your cranks freely (in the forward direction) as much as you wanted without any drive being applied to the hub. It can be extremely disconcerting when you're riding in traffic.

  3. #3
    Senior Member blakcloud's Avatar
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    I have the 9 speed Dura Ace shifters and the front is not indexed for a triple, straight friction. I don't think any version of this shifter was indexed for the front but others can correct me if I am wrong. The S.A. Looks like the best for your stated needs.

  4. #4
    coprolite fietsbob's Avatar
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    the current Brompton 3 speed shifter works great .. sits above the bar, has 2 levers to put your thumb between..
    better than the traditional S-A trigger-shifter fitted on an older bike..

    current NIG hubs will be fine with a friction shifter you just learn where the middle gear is ..

    1960. at age 13 I did this with an AW3 before , when they had the famous in between 'not a gear' between 2nd & 3rd.
    Last edited by fietsbob; 09-01-14 at 08:48 AM.

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