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  1. #1
    Brit Rider Andiroo99's Avatar
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    Vintage Suntour Power Shifters

    I just picked these up for my vintage 10 speed bike build out. Any views on Suntour power shifters or anything i should know. I presume these are early mid-80s but any other info would be great.

    best

    Andysuntour power shifters.....JPG
    1983 Mercian King of Mercia Touring
    1993 Balance XR-550 MTB
    2011 Surly Cross Check

  2. #2
    Senior Member
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    Those exact shifters came as OEM on my '85 Bridgestone 400. They are heavy but accurate, reliable and easy to use. The "Power" ratchet compensate for the derailleur spring tension and helps equalize the force needed to shift in both directions. Sun Tour used this design in these clamp-on shifters and several lighter, more "elegant" braze-on versions.

    I used them on my Bridgestone, shifting a 6-speed Sun Tour freewheel, for the first few years I owned it until i had it repainted and had braze-on downtube shifter bosses added. Then I installed a pair of Sun Tour Cyclone Power Ratchet braze-on shifters that used the same mechanism.

  3. #3
    Bianchi Goddess Bianchigirll's Avatar
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    I don't have those shifters but I do have a pair or three of the barend style and I agree they are great shifters. Are these stem mounted shifters? I can't tell if there is a housing stop or not.

    Bianchis '87 Sport SX, '90 Proto (2), '91 Boarala 'cross, '93 Project 3, '88 Trofeo, '86 Volpe, '89 Axis, '79 Mixte, '99 Mega Pro XL Ti, '97 Ti Megatube, , '90 something Vento 603,

    Others but still loved,; '80 RIGI, '80 Batavus Professional, '87 Cornelo, '86 Bertoni (sold), '09 Motobecane SS, '98 Hetchins M.O., '09 K2 Mainframe, '89 Trek 2000, '?? Jane Doe (still on the drawing board), '90ish Haro Escape

  4. #4
    Senior Member
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    Quote Originally Posted by Bianchigirll View Post
    I don't have those shifters but I do have a pair or three of the barend style and I agree they are great shifters. Are these stem mounted shifters? I can't tell if there is a housing stop or not.
    I'm nearly certain they are downtube clamp-on shifters since the ones on my Bridgestone were and looked exactly like the one's pictured, including the clamp bolt arrangement.

  5. #5
    Brit Rider Andiroo99's Avatar
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    These are DT Shifters. The friction ratchet aspect seemed unusual and threw me. A little heavy but i tend to think about me dropping a few pounds long before i sweat the odd ounce here and there.

    Thanks for info.

    Andy
    1983 Mercian King of Mercia Touring
    1993 Balance XR-550 MTB
    2011 Surly Cross Check

  6. #6
    coprolite fietsbob's Avatar
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    I've been using the Handle Bar end shifter version for about 30 years.

  7. #7
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    The suntour power shifters are pretty trusty. They don't deserve the trash heap, so an old 10 speed is a good home for them

  8. #8
    Constant tinkerer FastJake's Avatar
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    The Suntour Power Ratchet shifters are my favorite friction shifters ever made. They have tons of fans. Enjoy them.
    Why "derailer" is the correct way to spell the gear-change mechanism: sheldonbrown.com/derailer.html

  9. #9
    Bicycle Repair Man !!! Sixty Fiver's Avatar
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    These are wonderful shifters and for friction systems there are none better save for Simplex retrofriction which will set you back a lot more coin.

    I run a good number of Suntour power ratchet shifters and they just keep working day in and day out and they are perfectly reliable.

  10. #10
    Senior Member RubberLegs's Avatar
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    Good and SOLID, I had one pair of DT shifters many years ago, that were NOT all that solid and felt flexy in the fingers, NOT good for positive shifting. Those should work fine.

  11. #11
    Brit Rider Andiroo99's Avatar
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    Many Thanks for all the feedback. They will be fitted and working in the next month so will report back.

    Rgds

    Andy
    1983 Mercian King of Mercia Touring
    1993 Balance XR-550 MTB
    2011 Surly Cross Check

  12. #12
    Andrew R Stewart Andrew R Stewart's Avatar
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    Andy- I agree with the positive replies you've gotten. My advice is to take the levers apart (one side at a time), clean them up and lube them well with a light grease. One issue is that with the narrower cog spacings common today the levers' cable pull between the ratchets is a bit large. So what was a fine tuning feature BITD is now a bigger der positioning tuning. Still the levers are wonderful. Andy.

  13. #13
    rebmeM roineS JanMM's Avatar
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    My favorite DT shifters were ST Powershifters. Favorite thumbshifters: Ditto.
    RANS V3 (steel), RANS V-Rex, RANS Screamer

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