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Dahon Vybe D7: suspension upgrade questions

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Dahon Vybe D7: suspension upgrade questions

Old 04-10-17, 06:05 PM
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Bikes: 1990 Raleigh Flyer; 2014 Trek 7.6 FX (size 15"); 2014 Trek 7.6 FX (size 17.5"); 2014 Dahon Speed D8; 2015 Dahon Mu D8

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Dahon Vybe D7: suspension upgrade questions

Hello everyone,

I couldn't decide whether this belongs in the Bicycle Mechanics or Folding Bikes section, so I erred on the side of the former.

So, after the minor consternation with having bought a front wheel with the wrong hub, I'm thinking of upgrading the Vybe with a suspension fork and seatpost. A suspension fork would hit two stones with one bird: it - along with the seatpost - would help me get a better ride (especially given that this is my daily rider,) and would allow me to use the new front wheel with the 100mm hub (thank you cobba and AlexCyclingRoch for pointing that out!)

For me, the Biologic seatpost is the obvious choice, no problems there.

As for the fork, I narrowed the "elegant" choices down to the RST Single Shock 20 (which is no longer listed on the RST site) and the SR Suntour Swing Shock 20 - that is, unless there are other choices that I'm missing, but I'm getting the feeling that the RST makes a little more sense design-wise, even if it's considerably pricier.

So, I've got a few question at this point:

a. Which of the two should I choose, and why?

b. More specifically, which of the two could accommodate the existing (and OEM) 20x2.10 tire?

c. What else do I need to purchase with it? Can/should I use my existing bearings, or should I get a new set of bearings to go with whichever new fork I end up getting?

d. Should I cut and thread the steerer tube to use my original big tensioning nut, or should I be converting to a star nut/top cap setup (included with some headsets I've seen online)?

e. What tools do I need to buy/borrow? Or, should I be doing this myself in the first place, or would it be safer to entrust this sort of job to my LBS (which happens to be Trek dealer in my case)?

f. Am I asking the right questions, and what other questions should I be asking?

I really appreciate your guidance on this!
sjanzeir is offline  
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