What is the best groupset for folding bikes ?- Mtbr.com
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  1. #1
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    What is the best groupset for folding bikes ?

    Any idea ?

  2. #2
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    Quote Originally Posted by gat3keeper View Post
    Any idea ?
    Sram's wireless groupset makes a lot of sense here. I didn't much like the first generation stuff i used; it was slow, it had a lot of batteries, and it was sram quality. Small potatoes when you can unbolt the bits without any cables to worry about.
    "Things that are complex are not useful, Things that are useful are simple."
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  3. #3
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    One that doesn't dangle down in the way of harm.

    Derailleurs are a ridiculous idea on a folding bike because it's so easy to bend the hanger unless you take great care - which most experienced folder owners do automatically.

    So I reckon hub gears are the best for folders.
    As little bike as possible, as silent as possible.
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  4. #4
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    My folder has the nine speed cassette and derailleur it came with. I had to replace the shifter with a Sram. Drove me nuts because it twists in the opposite direction.
    I also swapped the crankset to a Shimano CX set and a Wolftooth narrow wide 50. That was a huge upgrade because I ride my folder in NYC and it would drop the chain from time to time. Not cool when you're weaving through a sea of taxis.
    I like turtles

  5. #5
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    there are parts of groups which work better on folders, but usually its better to look for individual parts rather than a full blown group. Money no option look for Gravel Bike Groups and change the gearing to your likes
    Thor
    yes my opinion is at least somewhat biased as I work for Dahon.

  6. #6
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    Quote Originally Posted by Velobike View Post
    So I reckon hub gears are the best for folders.
    This ^^.
    Also, the chain isn't hanging down near the road where (on a bike with 20" wheels, anyway) it's exposed to dirt kicked up bu the front wheel. Also, you can shift gears while stopped. The small amount of energy lost in the gears is insignificant... I've done century rides on mine.
    What is the best groupset for folding bikes ?-verge_s11i_on_tour_img_7811.jpg

  7. #7
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    Quote Originally Posted by Velobike View Post
    One that doesn't dangle down in the way of harm.

    Derailleurs are a ridiculous idea on a folding bike because it's so easy to bend the hanger unless you take great care - which most experienced folder owners do automatically.

    So I reckon hub gears are the best for folders.
    Derailers are pretty robust in my experience. Not as robust as IGHs but cheaper, easier to fix/replace, and a moderately clean one will still result in quick crisp shifts.

  8. #8
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    You are all right pluses and minuses for both systems
    The key is that you love to ride your folding bike no matter what system ( or brand that is )
    Thor
    yes my opinion is at least somewhat biased as I work for Dahon.

  9. #9
    EAT MORE GRIME
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    Quote Originally Posted by Velobike View Post
    One that doesn't dangle down in the way of harm.

    Derailleurs are a ridiculous idea on a folding bike because it's so easy to bend the hanger unless you take great care - which most experienced folder owners do automatically.

    So I reckon hub gears are the best for folders.
    not on my brommie

    that der is safe and protected when folded.
    "Put your seatbelt back on or get out and sit in the middle of that circle of death." - Johnny Scoot

  10. #10
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    Quote Originally Posted by 127.0.0.1 View Post
    not on my brommie

    that der is safe and protected when folded.
    My 6 speed Brompton has the best of both, 3 speed Sturmey Archer and two speed derailleur. Pretty bulletproof kit IME.
    Along with the king of folds...

  11. #11
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    Quote Originally Posted by Jake January View Post
    My 6 speed Brompton has the best of both, 3 speed Sturmey Archer and two speed derailleur. Pretty bulletproof kit IME.
    Along with the king of folds...
    Well.... somebody could say the worst of both worlds as well, derailleur hanging down while you carry the weight of the internal hub around..... Of course as I said I like both systems for different bikes, all have their place in the wonderful world of folding bikes.
    Thor
    yes my opinion is at least somewhat biased as I work for Dahon.

  12. #12
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    This might be the right place to ask this. I'm playing with upgrades to my Dahon Mariner D7. I want more speed, more climbing ability, and no front derailleur. I recognize these things are in conflict, but I'm trying to work out the median. Right now I'm looking at this: Shimano RD-M640-SS, Zee Shadow (https://smile.amazon.com/gp/product/...718ZUBOU&psc=1) which Shimano has going to 36t, paired with a Shimano HG81 11/36 (https://smile.amazon.com/gp/product/...718ZUBOU&psc=1). I'll also replace the crankset and BB, but that's easier to work out than the rear. Thoughts on that derailleur and cassette paired on a folder?
    Thanks,
    Anthony
    Last edited by Berone; 2 Weeks Ago at 06:42 PM. Reason: Fix links

  13. #13
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    Mariner has 53 32-11 or roughly 30 to 91 gear inches
    if you just change the front to 56 teeth the gear inches would be 33 to 96


    rear sprocket 11 - 36 would give you more climbing power ( lower gear inches ) 27 to 91

    combined 56 front rear 11 - 36 would give you 30 to 96

    I think the zee rear derailleur can handle that pretty easy
    You see that doing just one gets you up the hill better but you don't gain any speed advantage

    sorry I cant open the links but you get the idea
    Thanks
    Thor
    yes my opinion is at least somewhat biased as I work for Dahon.

  14. #14
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    Sorry, I was out of town where internet goes to die. Very difficult to maintain a good connection in St. John! I fixed the links on my post above. Some of what I've been reading talks about distance of derailleur to ground with the larger gears. Would the Zee (which I understand to be a short cage) mitigate that problem on the Dahon?
    Were all of the various years of Mariner 11-32? I thought mine was 11-30. It's about a 2015, with a Tourney derailleur. I'll count when next I'm in the same room with the bike, but that's still a couple of days off.
    What math are you using to arrive at the gear inches? I've been using the Sheldon Brown calculator and the numbers I'm getting are different. Not sure if it matters, as long as they are relative. Is there a 54 or 55 chainring? I don't want to run numbers for something that doesn't exist?
    Thanks for the help- much appreciated! (You shipped me a new folding arm, so I'm looking forward to receiving that and being with the bike in the same room again!)

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