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Old 03-20-17, 11:03 PM   #1
PavelT
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upgrade saddle / seat post on Dahon d7

Hello !

So, i have had my dahon mariner d7 for a few now, but the seat is unforgiving around town. I was thinking about maybe replacing the seat at some point. i have read a bunch online about upgrading the seat (saddle), a "thudbuster" (if they make one the size of the dahon seat post?) , the Biologic Suspension Seat Post, etc. I need a comfort ride but i also don't want to be jiggling around like jello cup. i was leaning towards a new seat, i find that the Brooks b67 is good? (Hard to believe after seeing it in person) and i find it a bit pricey.. i was wondering if any of you guys have had similar situation or have any recommendations / Experiences ?
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Old 03-21-17, 08:10 AM   #2
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sure there are two models of the thudbuster seatposts.... the long version and the more sporty short travel ones....
the tern/Dahon suspension seatpost works well, but I think its more for leisure riding


brooks.. hard as hell ... I cant get over that, as I don't ride that much .. people who ride a lot love them
( and here is my problem, peeps who ride a lot are also comfortable on other good quality saddles )


We sell economic saddles with little gel , they are not gel saddles filled with guuh which wobbles from side to side, just a small amount a the right place. there is a difference between Walmart super soft and a saddle from the bike dealer ...


thor
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Old 03-27-17, 12:51 AM   #3
PavelT
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Originally Posted by ThorUSA View Post
the tern/Dahon suspension seatpost works well, but I think its more for leisure riding


thor
i agree that Brooks are hard as ever... would you say the dahon suspension seatpost noticeably decrease cracks in the road? or is that more of a saddle alone issue?
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Old 03-27-17, 02:59 AM   #4
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Originally Posted by PavelT View Post
i agree that Brooks are hard as ever... would you say the dahon suspension seatpost noticeably decrease cracks in the road? or is that more of a saddle alone issue?
Saddle, seatpost, tyres.

I like wide tyres becouse thay also do a good job "saving" the bike frame from the stress that bumps provide.

Did you try to adjust your riding style to take some of the bumps out with your knees, hips and elbows? Doable if the bumps are not too many.

Riding on the cobblestones of Copenhagen with a Brompton can only be done with a Brooks Flyer (or simiar) IMHO. The seatpost actually start sliding down if there is no flex in saddle/seatpost.

So it depends what you are up against, and what is on the bike already. A saddle and often tyres can be used also on other bikes (if you buy a new one). Seatpost can be more difficult to reuse, but not impossible.
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Old 03-27-17, 10:59 AM   #5
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lets try this different way.... and again its my personal opionion


less than 30 miles a month .... first get big apples .. than a Dahon tern suspension post ,
less than 100 miles a month .... get a thudbuster its worth it ....long travel
more than 100 miles a month.... thudbuster short travel and a brooks will do fine
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Old 03-28-17, 10:41 AM   #6
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As others said, I would suggest upgrading changing the tires as well. The Schwalbe Big Apples are a popular choice for a more comfy ride pair it maybe with a Planet Bike ARS Saddle (Similar to a temperpedic cushion). I run my Dahon Vybe C7a with a Biologic seatpost-pump with a WTB Saddle (seatpost and saddle that came with my Dahon Speed p8) and paired it with Schwalbe Marathon's 20x1.75 at 65psi (around 40 is advisable to have a comfy ride) it's a little bit forgiving especially if you distribute your weight around bumps.
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Old 03-28-17, 10:48 AM   #7
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There are coil spring Brooks .. Conquest is the B17 with springs.

I have a Thud Buster seat post* on my Bike Friday, It came with one.. many options on their build menus.

In the options, is no saddle or pedals since so many people have different preferences.

* they have several elastomer densities, you pick the one according to your weight.

LT has 2 separate ones + a preload bolt thru them, ST you just have the Elastomer selection

but it fits bikes with less seat post Out of the frame..






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Old 03-28-17, 01:14 PM   #8
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I say this every year or so when such a thread comes up, the thudbuster ST is better than the LT for road/city riding due to the fact that design of the LT means that the first part of the arc of travel of the suspension is more horizontal than vertical. A thudbuster ST with a softer-than-recommended elastomer will have a similar amount of vertical travel to the LT whilst feeling more stable and looking much tidier on a folding bike.
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Old 03-28-17, 01:50 PM   #9
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I simply get the sewn neoprene cover for them..
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Old 04-03-17, 01:45 PM   #10
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very cool. i think i am going to do tires first. the big apples mentioned. but my dahon currently has 1.75 tires it came with. is it possible to go up to 2.15 big apples? wouldn't it be awkward on the rims? (sorry if thats a silly question, ive no experience in bike upgrades)

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Old 04-05-17, 08:29 PM   #11
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I ride a Speed D7 for upwards of 50 miles on a day's outing. First, I switched to a 2.00" Big Apple upfront (it'll fit under a fender but just) with a 1.75" Marathon in back for added protection. I've tried a number of Brooks saddles as well as the Selle Anatomica and find them stiff/uncomfortable even after a thousand or more kms of break-in. After reading that Tour Divide racer Marshall Bird used a cheapo Forte Softail from Performance Bikes on the 2700+ mile course a couple of years back Forté Men's Softail Saddle , I tried that on my Dahon. Much better, especially at low temps because it has firm padding which provides some insulation (good to -10C). If you have any problems with it or damage it, they're inexpensive to replace.

I don't need a Thudbuster and doubt you do. I've replaced the plastic pedals with FD-7s and installed Ergon handlebar grips. You can also switch out the bottom bracket cheaply using a Shimano sealed BB or equivalent: Upgrades on the Dahon Speed D7 .

Done!
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