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Downtube folding bike

Old 12-15-06, 09:22 AM
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Originally Posted by SesameCrunch
I am 6' with a 34" true inseam, and I find the max seatpost extension about 1/2 inch too short for me (for a textbook fit). I'd think someone with your height would have to rig up some kind of seatpost extension (or Thudbuster) before you can be comfortable for longer rides.
2006 1/2 FS frames are 2" taller than the 2006 and 2005 frames

Thanks,
Yan
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Old 12-15-06, 11:02 AM
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thats good to hear.
so what about the idea of making it a fixed gear? Or single speed even?
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Old 12-15-06, 12:44 PM
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Originally Posted by big boy phil
thats good to hear.
so what about the idea of making it a fixed gear? Or single speed even?
You will encounter the same problem as every other verticle dropout bike....the problem is not unique to our bike. Many people have gone to the White Industries Eno hub to solve this problem.

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Old 12-15-06, 02:10 PM
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I am familiar with the vert drop outs, and the eno hub. I knew that would be an option. I guess my question would be if the rear suspension would affect the chain length and tension. And if it does, perhaps running a singulator pulley or something similar.
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Old 12-15-06, 05:28 PM
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Originally Posted by big boy phil
I am familiar with the vert drop outs, and the eno hub. I knew that would be an option. I guess my question would be if the rear suspension would affect the chain length and tension. And if it does, perhaps running a singulator pulley or something similar.

The rear suspension on the Downtube FS does affect the chain tension.. I'm running a Shimano 8spd hub and singulator on my FS and have been for some time... works great and am very happy with the setup..

Bruce
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Old 12-15-06, 05:37 PM
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oooo. nice. ANy chance of getting a full shot of the bike?
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Old 12-15-06, 06:23 PM
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Originally Posted by big boy phil
oooo. nice. ANy chance of getting a full shot of the bike?
Well, you know, if you've seen one you've seen them all, haha, but here it is after hub installation but prior to singulator.... mine is an '05 model, so there are some improvements to be had with the newer bikes..

Bruce
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Old 12-16-06, 02:00 AM
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I guess I'm not the only one

I ended up putting on a Sram 7 speed hub and the Surly Singulator. just got this done a week or so ago so I only have a couple miles on it, but so far it's working great.

I'm over the chain though instead of under it like Bruce.
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Old 12-18-06, 01:12 PM
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Downtube IX 2006

I bought one of these from Harris Cyclery on Ebay. They are the direct importers. Whooohooo! also came with gratis carrying bag and bell! It's nice looking and set up easily but I'm waiting for word from them or anyone here as to how to engage the gears. My peddles are just spinning at this point so I've had it (unridden) for three weeks now. D in Key West
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Old 12-18-06, 02:15 PM
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Originally Posted by dsm@keysdigital
It's nice looking and set up easily but I'm waiting for word from them or anyone here as to how to engage the gears. My peddles are just spinning at this point so I've had it (unridden) for three weeks now. D in Key West
Which model did you buy, and what do you mean by "... how to engage the gears."

If it has a derailluer and the pedals just spin you may have a bad rear freehub. A quick trip to your LBS will confirm this. If there is a bad freehub then it is a warrantee issue.

If you have the 8-speed Sturmey-Archery internal-gear hub you need to shift the grip-shifter to 4th gear, turn the bike upside-down and look near the right-side of the rear hub where the shifter cable goes into the hub and line up the two red lines (a line on the rear hub, and a line on the mechanism associated with the shifter cable). Then turn the pedals, shift the shifter up and down a few times and check to see if the two red lines still line up. If they do you should be good to go.

For either model, check to make sure the shift cable is connected properly and didn't get bent or trashed in shipment.
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Old 12-18-06, 06:19 PM
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It looks like your new, so just for your information, when Pine Cone says LBS, he means local bike shop. Also, I know it sounds stupid like the equivalent "Is it plugged in?" question for electronics, but is the chain on the cogs (rear chain wheel and front chain wheel)?
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Old 12-20-06, 03:29 PM
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quick question

hi yan,

what type of shipping do you use for shipping bikes to customers in Canada? fedex or UPS.

The reason I ask is UPS charges way more in broker's fee than fedex or USPS almost half the price of your bike while fedex only charge between 40 to 50 dollars.
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Old 12-20-06, 03:49 PM
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Originally Posted by pxboii
hi yan,

what type of shipping do you use for shipping bikes to customers in Canada? fedex or UPS.

The reason I ask is UPS charges way more in broker's fee than fedex or USPS almost half the price of your bike while fedex only charge between 40 to 50 dollars.
We use UPS. FYI we used FedEx a while ago, however they do not always collect taxes. They bill the shipper (us) for the taxes, if the buyer does not pay. I doubt we will ever use FedEx to Canada again.

Thanks,
Yan
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Old 12-20-06, 04:34 PM
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Originally Posted by downtube
We use UPS. FYI we used FedEx a while ago, however they do not always collect taxes. They bill the shipper (us) for the taxes, if the buyer does not pay. I doubt we will ever use FedEx to Canada again.

Thanks,
Yan
Hi Yan,

I am also a potential Canadian customer for Downtubes. UPS shipping cost so far is the biggest deterrence. Any chance you would use USPS for shipping? Canadian Post doesn't charge a dime for brokerage fee. Besides, for a 50lb package, USPS's airmail parcel post only costs about $70.

Thanks
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Old 12-20-06, 05:01 PM
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Originally Posted by Kabir
Hi Yan,

I am also a potential Canadian customer for Downtubes. UPS shipping cost so far is the biggest deterrence. Any chance you would use USPS for shipping? Canadian Post doesn't charge a dime for brokerage fee. Besides, for a 50lb package, USPS's airmail parcel post only costs about $70.

Thanks
Kabir
USPS mail to Canada allows a maximum 108" length + girth. Our bikes are about 120" length+ girth, hence we can not use USPS

Thanks,
Yan
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Old 12-21-06, 12:52 AM
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UPS collect the broker's fee on the spot while fedex sends a bill to the buyer. if fedex do the same as UPS I don't think you'll have a problem.

cheers
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Old 12-22-06, 11:54 PM
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Originally Posted by Polaris43
The Mini is back home...

What an unbelievable difference the Shimano BB makes. The creaking is gone and it is soooo smooth...

The LBS said they had a really hard time getting the old BB out but the didn't have to drill it or anything like that. I haven't looked at the old one very closely yet. I'll report if I find anything this weekend when I have more time to examine it.

I left the VIIIH at the LBS to change the BB and downsize the chainring...
I just replaced the BB on my Mini. Turns out the original BB is already a sealed cartridge type. If I had known that I wouldn't have changed it out.

I did take the opportunity to grease a bunch of points which were dry, including the headset.

Along with the Big Apples I just put on, the bike is now ready to roll....
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Old 12-23-06, 11:39 AM
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Sticking a Downtube NS together so it can be carried while folded.

On vacation, so can't post pics., but thought I would post a helpful hint from a friend. 3M makes a super Velcro that will actually hold the Downtube togther better than Dahon's Magnetix system.

1) Make sure to tighten the quick release mechanism to the point that it cannot be easily opened.
2) Line up the quick release bars, so that they approximate when the bike is folded.
3) Clean the surface with paint thinner or nail polish remover and let dry.
4) Apply the Velcro.

Repeat to attach the stem to the back of the front fork This really works!

Use the 3M 5 times as strong as Velcro stuff. You can get it at Radio Shack.
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Old 12-28-06, 09:12 PM
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Hey guys, for those looking for a little extra height in their stem, I may be getting one of these, looks pretty cool (I'd have it on top of my thudbuster too!).



https://www.sidetrak.com/Catalog/components.html
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Old 12-29-06, 04:23 PM
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To all the "talented tinkerers" on this and the other Downtube threads -- a great resource! I read the whole list (whew!) before buying an IXNS in November. In response to previous posts about too-short fenders, here is a picture of homemade duct-tape flaps. There are two layers folded sticky-side-in to grip the fender tips. What may not be visible is a black thread between the rack stays to support the rear flap. Though I have yet to be caught riding in the rain, roads and bike trails here in Houston are often wet or muddy -- no problem.

Though I am generally glad to have the bike, my expections were way too high, and I am thinking it might be helpful to post two much longer messages about 1. the reality of dealing with management (look closely at the "alloy" pedals and the rear reflector) and 2. the factory manufacturing/assembly defects, on some of which I could use some help. Perhaps new non-tinkerer owners who intend to use the bike as shipped could print the posts and take them to their LBS. Even with all my hours of checking and repair, I missed one defect that could have resulted in a crash.

My question to the senior members here -- should I put the posts on this thread or start a new one titled Downtube Problems?

Thanks,

Tim
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Old 12-29-06, 05:26 PM
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Tim, I think if your intention is to provide constructive criticism with your problems, then post it here. Starting a thread labeled as such (..problems..), especially in light of a few poorly justified items as you put above (1. what do you mean "management"?, and, 2. doesn't the advertising for the downtube mention taking this to a LBS to have it tuned, for those that don't have tinkering skills).
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Old 12-29-06, 10:06 PM
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Originally Posted by TimMock

My question to the senior members here -- should I put the posts on this thread or start a new one titled Downtube Problems?
Post it here, this is where people who care would read it.

Be prepared, though, people here will call it like they see it.

BTW, was yours an eBay purchase?
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Old 12-29-06, 11:19 PM
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Yup, no "alloy" pedals

Originally Posted by TimMock

Though I am generally glad to have the bike, my expections were way too high, and I am thinking it might be helpful to post two much longer messages about 1. the reality of dealing with management (look closely at the "alloy" pedals and the rear reflector) and 2. the factory manufacturing/assembly defects, on some of which I could use some help. Perhaps new non-tinkerer owners who intend to use the bike as shipped could print the posts and take them to their LBS. Even with all my hours of checking and repair, I missed one defect that could have resulted in a crash.

My question to the senior members here -- should I put the posts on this thread or start a new one titled Downtube Problems?

Thanks,

Tim
You are right about the pedal. "Alloy" pedals are spec'd on the website. I never had any trouble with the plastic ones on my DT VIII FS, but I don't guess that is the point. From what I've see though, if you drop an email to Yan, he'll probably make it right with you.

Not sure what is wrong with your rear reflector, I see it IS there. My thoughts on that are; Yes, you need it to be legal, but if you're going to ride after dark you really need to get yourself a blinky or two. Mine is mounted on the seat post, right under the seat.

It's a little hard to tell what you mean by "the factory manufacturing/assembly defects", I had to make some adjustments to my bike before it was ready for the road. Yan makes it pretty clear the this will probably be necessary.
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Old 12-30-06, 02:46 AM
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Awww, I thought the duct-tape thing was worth an at-a-boy. :-)

Rik: The rear reflector arrived broken. Note both pedals are so tight that they will not rotate under their own weight, and the right one occasionally jams enough to pitch my foot forward. Yan knows.

SesameCrunch: eBay.

Jasong: Example some kind soul previously mentioned flats from metal filings in the tire. My LBS would not check this as part of a tune up. The detailed listing (justification?) of my experience will take a lot of my time, some of yours to read, and certainly will not be universally applicable.

Keep up the good work, guys,

Tim
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Old 12-30-06, 07:42 AM
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The duct tape is a great solution! I'm working on something similar with a water bottle, will post pics when done. Also a magnet system for latching, almost done (just need to find the right type of magnet).

If you're going to ride a bike you should learn how to change the tire. May as well start with a good one in the comfort of your living room instead of in the middle of the road in the middle of no where There are plenty of threads on these boards about tire changing methods and checking for foreign objects - give it a shot when you have some time and check for metal filings. I haven't heard of that happening but it's really easy to check for. Realize that most lbs' aren't thrilled about checking over or putting together bikes someone bought online. While they may not include that in the checkup (not sure many would) they shouldn't charge more than $12 to take each tire off and inspect it.

For any sort of warranty you'll have to send the parts back. Either get a pedal wrench (a good investment anyway) or have your lbs take them off to send back.
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