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  1. #1
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    Trek 7.1 FX. Front suspension possible??

    Hello all. Thiss is my first post so i bare with me please
    i have a 2014 Trek 7.1 FX and got one for my mother. Im curious if I could get front suspension for hers or if there is any way to do that. She has really bad elbows and doesnt like all the vibrations and stuff. Any help would be much appreciated. Thanks in advance.

  2. #2
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    2014 i believe

  3. #3
    Super Moderator no1mad's Avatar
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    Depending on how long you have had the bike in question, see if you can exchange it for something from the DS line.
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  4. #4
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    Ive had it for 2 maybe 3 months. I just wanted to know if it is possible. She likes the bike but she loves the suspension on my 2007 4300. She wants a hybrid though
    Last edited by mike2288; 07-04-14 at 10:36 PM.

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    Super Moderator no1mad's Avatar
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    I'm not a mechanic by any means, but I think it is easier to switch from a suspension fork to rigid than the other way around. You might consider a carbon fork, though.
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  6. #6
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    Ok i will look into that thanks

  7. #7
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    Me, try lowering the front tire pressure on her bike, not below minimum, and see if that makes a big difference for her. Also try wider tires...

    Not many people realize what a HUGE help front suspension is to bad shoulders, elbows, wrists. I love it for what it is, not for what it isn't.... Those short, sharp, bumps sometimes really hurt!

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  8. #8
    The Left Coast, USA FrenchFit's Avatar
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    Quote Originally Posted by mike2288 View Post
    Hello all. Thiss is my first post so i bare with me please
    i have a 2014 Trek 7.1 FX and got one for my mother. Im curious if I could get front suspension for hers or if there is any way to do that. She has really bad elbows and doesnt like all the vibrations and stuff. Any help would be much appreciated. Thanks in advance.
    I think you need to swap it for a different bike at the Trek dealer, bite the bullet on trade in value. Yes, you can try to upgrade or work around, but I bet she will be disappointed with the result. Tweaking the bike to seem like it has OEM front susp is a shot in the dark, and it can get expensive.

    I know from fitting my wife to her "perfect" bike, those lightweight, quality front susp forks designed for the bike's geo make a big difference in ride.

  9. #9
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    I agree with the comment about switching it for another bike. If the shop won't do a trade or it is beyond the time allowed I would just buy another bike. The price of the new fork, the time involved putting it together isn't going to be much of a saving over just buying another bike.

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    Possible? Yes -- you could put a suspension fork on it. Should you? No. The bike is not designed (geometry) for it; any suspension fork you could find would boot the front end up way too high and throw the geometry/handling entirely out of whack.

    As others have said, the best option would be to accept the loss and sell it on/trade it for a bike designed around suspension. Failing that, one or both of wider tires/at lower pressure (most effect) and a carbon fork (which can easily be done; some effect) would help greatly.

  11. #11
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    Ive been seeing these around quite a bit: Amazon.com : SR Suntour Swing Shock Fork, 700c x 255mm, 1-1/8" Steerer, White : Bike Suspension Forks : Sports & Outdoors

    30mm travel isnt enought to mess up with geometries too much; MTB racers jacked up their bikes with 1.25" suspension back in the day with no major issues. 2" and up is where you run into problems

    In addition to a larger volume, lower pressure tire, try running lightweight aluminum bars. Do not swap stem to 31.8 to run the bars though, you want a 25.4 lightweight bar.

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    Quote Originally Posted by DorkDisk View Post
    Ive been seeing these around quite a bit: Amazon.com : SR Suntour Swing Shock Fork, 700c x 255mm, 1-1/8" Steerer, White : Bike Suspension Forks : Sports & Outdoors

    30mm travel isnt enought to mess up with geometries too much; MTB racers jacked up their bikes with 1.25" suspension back in the day with no major issues. 2" and up is where you run into problems

    In addition to a larger volume, lower pressure tire, try running lightweight aluminum bars. Do not swap stem to 31.8 to run the bars though, you want a 25.4 lightweight bar.
    Hmmm ... that's a good catch -- wasn't aware of those things. Clearly designed for retrofit to bikes with road or cross forks. The main problem I see is that the suspension is a simple coil spring with bump-stop; no damping at all. Bit of a pogo stick, but the OP's mother might find that an acceptable trade-off. Inexpensive too, relatively speaking.

  13. #13
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    Quote Originally Posted by badger1 View Post
    Hmmm ... that's a good catch -- wasn't aware of those things. Clearly designed for retrofit to bikes with road or cross forks. The main problem I see is that the suspension is a simple coil spring with bump-stop; no damping at all. Bit of a pogo stick, but the OP's mother might find that an acceptable trade-off. Inexpensive too, relatively speaking.
    In all fairness, most entry level suspension forks dont have any damping either; Theyre just a tube that slides inside another one with a spring in the middle.

  14. #14
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    You might also try a comfort suspension seatpost. I know what you said about elbows but if you adjust the bike for more upright position (less stress on arms), a suspension seatpost will be perfect.
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  15. #15
    PatronSaintOfDiscBrakes dynaryder's Avatar
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    Quote Originally Posted by badger1 View Post
    Possible? Yes -- you could put a suspension fork on it. Should you? No. The bike is not designed (geometry) for it; any suspension fork you could find would boot the front end up way too high and throw the geometry/handling entirely out of whack.

    As others have said, the best option would be to accept the loss and sell it on/trade it for a bike designed around suspension. Failing that, one or both of wider tires/at lower pressure (most effect) and a carbon fork (which can easily be done; some effect) would help greatly.
    All of this.

    That might work,but that's alot of coin to drop on a lower-end bike.

    I'd go with the widest,lowest pressure tires that will fit. I put a set of 37mm Conti's that only maxed out at 70psi(I ran them lower) on a bike with a straight blade alloy fork and they worked great. You could also try better grips,like Ergons ,and gloves with gel pads. If that doesn't work,I'd go with a bike with suspension.

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  16. #16
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    Ok thanks everyone. Sorry for the long wait to reply, was kinda busy. I will try and get a different bike. Thanks for all the replies. Very helpful. You all have a great day.

    Michael

  17. #17
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    Quote Originally Posted by themishmosh View Post
    You might also try a comfort suspension seatpost. I know what you said about elbows but if you adjust the bike for more upright position (less stress on arms), a suspension seatpost will be perfect.
    Never thought about that. Shes in her fifties so im sure that area gets sore too. Know of any good ones? A link to one maybe? Would i need to buy anything else to mount itnon there for her or does it usually come with everything to bolt it on?

  18. #18
    The Improbable Bulk Little Darwin's Avatar
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    Another vote for tire swap/pressure change... I know I can squeeze 40 mm tires onto my 7.3 FX, and a set of 40s with the lowest pressure usable for her weight would do more to smooth road buzz than any cheap fork. The only remaining hurdle would be to overcome the mental perception that a front suspension is needed for a comfy ride. Especially if you spring for a nice set of supple wide tires.

    Also, I love the Ergon grips someone else mentioned.

    To add another element to consider, based on women my age (late 50's), they really like to have light bikes in case they need to lift them... suspension adds weight.
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  19. #19
    The Improbable Bulk Little Darwin's Avatar
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    Quote Originally Posted by mike2288 View Post
    Never thought about that. Shes in her fifties so im sure that area gets sore too. Know of any good ones? A link to one maybe? Would i need to buy anything else to mount itnon there for her or does it usually come with everything to bolt it on?
    For a suspension seat post, you just need to just find one the right diameter. They are pretty much direct replacements for standard seat posts.
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  20. #20
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    Quote Originally Posted by Little Darwin View Post
    For a suspension seat post, you just need to just find one the right diameter. They are pretty much direct replacements for standard seat posts.
    Do you know what diameter the 7.1 is?

  21. #21
    The Improbable Bulk Little Darwin's Avatar
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    Quote Originally Posted by mike2288 View Post
    Do you know what diameter the 7.1 is?
    According to the Trek site, the current model of the 7.1 uses a 27.2 mm seat post, and if my memory serves me right, that is the same as my 2011 7.3 FX. You can check their archives for earlier model years, but I would guess that 27.2 is a good possibility. If you are near a shop where you would like to buy the post, they can confirm by looking it up (or possibly more easily measure it with a tool designed for that purpose).
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