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Folding Bikes Discuss the unique features and issues of folding bikes. Also a great place to learn what folding bike will work best for your needs.

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Old 04-14-08, 12:23 AM   #51
Sixty Fiver
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My other Twenty, "Forrest".

Came to me like my other Twenty as a bone stock folder... now the little fella is down to one speed (fixed) and tomorrow I will put on the new tyres and new front wheel. I have yet to modify the front dropout as my Dremel decided to crap out on me.





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Old 04-16-08, 09:44 PM   #52
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I just can't stop...

Removed the kickstand (-1 full pound), removed the inner chain ring, and fitted some lighter faster rolling Kenda Contact tyres today which brought the Twenty below 27 pounds (a 9 pound weight loss). I still have to find new forks and replace the steel stem and bars which should bring me into the 25 pound range.

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Old 04-25-08, 01:42 PM   #53
psykoocycle
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Finally finished last weekend:

DT FS VI (I think it is 2007 or 2006.5)

1) R DER: SRAM x7
2) SHIFTER: x7
3) DER CABLE: Teflon coated
4) BB: Race Face ISIS
5) CHAINRING: Surly 49t
6) CRANKSET: Sinz Expert isis
7) CHAIN: KMC
8) HANDLEBAR: Titainum O/S
9) STEM: Zion t6
10) BRAKE: Shimano LX
11) BRAKE LEVERS: Shimano LX
12) GRIPS: Oversized superfoam
13) SEAT: Terry Fly Ti
14) PEDALS: Dimension Cage
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Last edited by psykoocycle; 04-25-08 at 01:48 PM.
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Old 04-25-08, 01:51 PM   #54
Sixty Fiver
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I think I can stop now...

New Brooks saddle, restored the stock fenders, wrapped the bars with cork, added a bottle cage, and removed the crusty brake hoods, and changed the brake pads to softer ones to improve the braking.

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Old 04-25-08, 02:10 PM   #55
psykoocycle
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Yeah right... you can stop for now... but there's always this coming winter... and you never know when something could break?
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Old 04-25-08, 04:24 PM   #56
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Photo Credit: Nekohime
2005 Dahon Jetstream XP
  • Brooks B17 Ti Champion saddle
  • Carbon fiber seat post ("borrowed" from my wife's Helios)
  • Cateye CD300 DW computer - wireless speed/cadence sensor
  • Ergon grips
  • Minoura water bottle cage clamp
  • Ti water bottle cage
  • Modified Pantour suspension hub with a stiffer elastomer
  • Rohloff 500/14 Speedhub
  • VeloCity Fusion rim(rear)
  • Old Man Mountain "Sherpa" rack
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Dahon Jetstream XP
Dahon Helios SL
Strida 5.0
Twenty project


or not . . .
Fisher Mt. Tam (c.1988)
Merlin Road flat bar project
Schwinn Twinn Deluxe
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Old 04-25-08, 04:26 PM   #57
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Lovely bike Captain sirrr!
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Old 04-26-08, 10:13 AM   #58
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I can only agree with mulleady- some nice extras on there, Captain. I'm an owner of an XP myself ('04), and I've made a few similar tweaks. I have the exact same Cateye computer (the cadence has stopped working, probably sensor out of line, but otherwise very nice), Ergon GR2s, and like you I changed the gearing- I went with a DualDrive setup (a Rohloff would have been nice, but more than the bike cost me in the first place!). And SKS mudguards. I'm in the UK, we need 'em over here!. You stuck with the Stelvios I see- I've got Marathons on at the moment, and thinking of trying Big Apples.
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Old 04-26-08, 10:18 AM   #59
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On tyres... I picked up those Kenda Kontacts (20 by 1.95) for $17.00 each and am well pleased at how well they roll, ride, and handle.
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Old 04-26-08, 11:37 AM   #60
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Quote:
Originally Posted by StuAff View Post
I can only agree with mulleady- some nice extras on there, Captain. I'm an owner of an XP myself ('04), and I've made a few similar tweaks. I have the exact same Cateye computer (the cadence has stopped working, probably sensor out of line, but otherwise very nice), Ergon GR2s, and like you I changed the gearing- I went with a DualDrive setup (a Rohloff would have been nice, but more than the bike cost me in the first place!). And SKS mudguards. I'm in the UK, we need 'em over here!. You stuck with the Stelvios I see- I've got Marathons on at the moment, and thinking of trying Big Apples.
Thanks for the compliments.

The rationalization I used when I decided on the Rohloff was that it would be a lifetime investment. I won't deny that it is a rationalization, but it is true nonetheless. I'll take that hub from bike to bike. The dual drive setup is great, too, by all reports. BTW, when I bought my Rohloff, it was about $500 less than it is today, so it wasn't quite such an insane purchase.

When I mounted the Cateye I found the whole situation down by the chainstay to be a little cramped. My solution was to disassemble the cadence magnet, discard the plastic casing and just use the magnet itself. I used a little hot-melt glue to affix it on the inside of the crank in the hole where the pedal mounts. I used enough glue to hold it but not so much that it cannot be easily pried out if I need to remove the pedals. The result is that it is much less fiddly to position the sensor arms to get both the speed and the cadence.



Interesting that you used the term "stuck" in relation to the Stelvios. When the bike was new, I had a frustrating number of flats, and I was on the verge of replacing them. To be fair, a number of the flats were spoke related - when I got the Rohloff I had a new back wheel built (to accommodate the proper spoke count) and had the front wheel gone through at the same time. Once everything was properly tensioned and a higher quality rim strip was in use, no more flats, spoke related or otherwise. My ire cooled somewhat, and as otherwise the Stelvios perform brilliantly, I've been biding my time. It's almost time to replace them, and I've been contemplating the two tires you mentioned, the Marathon and Big Apples. If you end up getting the Big Apples, I'd be very interested in hearing how you compare the two tires. Please PM or post!
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I came to say I must be folding . . .
Dahon Jetstream XP
Dahon Helios SL
Strida 5.0
Twenty project


or not . . .
Fisher Mt. Tam (c.1988)
Merlin Road flat bar project
Schwinn Twinn Deluxe
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Old 04-26-08, 04:39 PM   #61
StuAff
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Quote:
Originally Posted by CaptainSpalding View Post
It's almost time to replace them, and I've been contemplating the two tires you mentioned, the Marathon and Big Apples. If you end up getting the Big Apples, I'd be very interested in hearing how you compare the two tires. Please PM or post!
Thanks for the info on your magnet 'mod'- might be worth a try for me, though I'll have a look at tweaking the position of magnet & sensor first, I think one or the other got jolted out of line- plenty of potholes and dodgy road/cycle lane surfaces in my area (at least the speed sensor is still working fine, better that's OK if there was a problem).
I didn't get much experience of Stelvio ride quality- I got the bike at the end of last year, previous owner had swapped out the rear due to a puncture, and the front literally lasted for only one short trial ride before it split. I got a Marathon for the front, another went on at service as the rear had a problem. With my mileage (usually just 10-20 miles at weekends, I'm not risking it in the racks at work, too many clumsy colleagues) it'll probably be quite a while before they wear out. I'm keeping an eye out for 406 Big Apples on eBay, they turn up from time to time. I've found the Marathons to be pretty good, but I'd like a bit more cushioning on the front (UK XPs- only imported for the '04- didn't get the Pantour hub). It's not uncomfortable at the front, little if any worse than my hybrid (on 26 x 1.95s), but smoother would be better. I have a feeling Stelvios front and back would not be good round here...! On another point- I get a slightly irritating creaking from somewhere on the bar/stem/handlepost- tried checking all the QRs & bolts, a dash of GT85 in the handle post latch, no joy in silencing it. I know Dahon switched the post setup for '05, so yours is a bit different, but any ideas?
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Old 04-26-08, 06:19 PM   #62
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I know that creak! It's a devil to locate. I've tried to reproduce it by pushing the handlepost in various directions. I think it actually is coming from the break in the frame where it folds. I think it happens when there are opposing forces on a handlebar end and the opposite pedal, when the frame is being twisted. It's intermittent, so I've had a hard time nailing it down.

Thanks for your info on the tires. I'll probably go with the Big Apples, which are in fact 210g lighter per tire than the Marathon+ tires I was considering.
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I came to say I must be folding . . .
Dahon Jetstream XP
Dahon Helios SL
Strida 5.0
Twenty project


or not . . .
Fisher Mt. Tam (c.1988)
Merlin Road flat bar project
Schwinn Twinn Deluxe
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Old 04-26-08, 09:06 PM   #63
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TANK Micro 16: Aired up the tires, replaced the batteries in the headlight, and added a cable lock.

Eventually hope to add fenders, a Sturmey Archer 5 or 8 speed internal gear rear hub with drum brake, and a Sturmey Archer drum brake front hub.

Sears Tote Cycle:

A Top Secret work in progress. Will be de-classified when completed.
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Old 06-03-08, 11:20 AM   #64
trueno92
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Summer is slowly arriving!! anyone make a few more mods as of late?
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Old 08-25-08, 05:57 AM   #65
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Dahon Speed D7 touring mods

In June I bought a standard Dahon Speed D7 and have since swapped / added the following parts;

Kinetix Comp wheels
Schwalbe Big Apple 20 x 2.0 tyres
Brooks Champion Flyer saddle
FSA Mountain Bike Riser handlebar
Sugino XD Chainset with crank
42 Tooth chainring
Shimano XT Cassette 8 Speed M737 11-30 cassette
SRAM Attack Twister Shifter 8sp RH Rear shifter
MKS Promenade Ezy Detachable pedals with PowerGrips
Dahon Tour front rack
Dahon ArcLite rear rack
KF Big Foot adjustable propstand (to compenate for the bigger tyres)
Ortlieb Front Roller Plus Panniers
Altura Arran Rack Pack
Cateye Mini lights
Bontrager Race Lite bottlecage
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Old 08-25-08, 06:54 AM   #66
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Added Ergon grips with the little bitty barends, swapped out the saddle, and added a bottle cage.
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Old 08-25-08, 10:21 AM   #67
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Sixty Fiver -- are you building new wheels for Twenties around original 3-speed rear hubs? I think I'll have to learn to build wheels in order to get new rims on mine. Do you attach new spokes to the hub, or just put a new rim on the old spokes?
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