I want a steel framed folder and IGH. Options?
Hey guys!
Greetings! I used to frequent this forum but have been spending more time in C&V lately. But I've still been riding my Downtube 8H 20 miles, and taking it 100+ miles on the train, every day I go to work. Anyway. Yesterday the frame broke. I've had this bike less than 20 months. A stress crack formed at the front of the seat tube, just below the seat post collar; by the time I noticed it there was only a centimeter or so of material holding it at the back. Needless to say I left that bike at home this morning, and rode my (also very worn out) Downtube Mini. Email from Yan is unclear whether I will be able to get a replacement frame (he will look when he gets back to PA). But bottom line, I am fed up with aluminum frames. A bike frame should last more than 5600 miles. I want a new bike. Again. So I want a folding bike with a steel frame and an internally geared hub. What are my options? I know about the Raleigh Twenty; but it doesn't fold up small enough for practical use. I know about the Brompton; I've never been a fan but I suppose I could give it another try. What else am I missing? I am considering a Speed Uno... I can reuse the wheel (with Sturmey Archer XRF8 hub) from my Downtube. But what about brakes? |
Originally Posted by rhm
(Post 14057087)
I want a new bike. Again.
So I want a folding bike with a steel frame and an internally geared hub. What are my options? I know about the Raleigh Twenty; but it doesn't fold up small enough for practical use. I know about the Brompton; I've never been a fan but I suppose I could give it another try. What else am I missing? I am considering a Speed Uno... I can reuse the wheel (with Sturmey Archer XRF8 hub) from my Downtube. But what about brakes? Brompton seems the obvious choice based on your usage. The Dahon 'Speed' models are chromoloy steel, and with some 'slight of hand' (magic ratios, half links, external chain tensioners), a hub geared wheel could be installed. I've done it successfully on my Jetstream XP. Also, there are plenty of reports of frames breaking at the seat post collar on steel framed folders with long seat posts as well. I'd be looking hard at Brompton if I were you. |
Bike Fridays are steel. I think there is a Tikit with an internal hub.
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Originally Posted by Boudicca
(Post 14057404)
Bike Fridays are steel. I think there is a Tikit with an internal hub.
If OP has the budget for a Brompton, the tikit should be a viable candidate, too. There is a dlr in NYC that handles both brands: http://www.bfold.com/StoreFrameset.htm FYI: If the seat post 'cracks' are the result of being a 'taller' rider, then a Large sized tikit would eliminate the xtra long seat post problem. Lou |
Bromtons are all steel framed, save the Titanium X premium options you don't need.
and 2 IG hubs BSR, is the AW3-NIG, BWR is wider ratio %, to use 2 cogs as a half step 6 speed. Bike Friday will equip your frame of the Tikit with a vast option list, including a R'off hub, or Alfine 11 and a belt drive if you wish.. they will ship from Oregon to your door.. |
Thanks for those replies!
Which reminds me of a related question. I have 9,000 miles experience with 16" wheels (ISO 305) but only limited experience with Brompton/Moulton/Tiket sized 16" wheels (ISO 349); and 6,000 miles experience with 20" wheels (both ISO 406 and 451). 20" tires last a lot longer, and get far fewer flat tires. Am I mistaken about that? Anyway, this makes me reluctant to go back to 16" wheels. |
Bike friday's travel bikes use the 406 wheels, but, though they hinge the rear section
and seat mast, it is more in service of the packing for travel, than a Daily fold to get on Public transport.. The 349 tire is a 100psi casing , so tends to be faster, than the fatter, lower psi, 305 wheel-tire. It is a different 16" wheel, in Short.. I have a Brompton (M3L,MD) and A BikeFriday,Pocket Llama, [disc,R'off] |
Originally Posted by rhm
(Post 14057573)
Thanks for those replies!
Which reminds me of a related question. I have 9,000 miles experience with 16" wheels (ISO 305) but only limited experience with Brompton/Moulton/Tiket sized 16" wheels (ISO 349); and 6,000 miles experience with 20" wheels (both ISO 406 and 451). 20" tires last a lot longer, and get far fewer flat tires. Am I mistaken about that? Anyway, this makes me reluctant to go back to 16" wheels. Brompton, Bike Friday (tikit and standard models), and some Dahons (all 20" models from memory ... the Speed series is steel) have steel frames. Yes Moulton ... although you should realize that the size is ERTO 369 ... or something like that ... for some of their models. 349 is considerably larger than 305. Nonetheless, for tires of the same construction, you will get considerably more miles out of a 20" tire. Although I recall getting a lot of miles out of a 349 Marathon if that is a tire that fits your riding. I don't remember getting more flats with smaller wheels. |
Yesterday the frame broke. . . A stress crack formed at the front of the seat tube, just below the seat post collar. . . |
Originally Posted by rhm
(Post 14057087)
Hey guys!
Greetings! I used to frequent this forum but have been spending more time in C&V lately. But I've still been riding my Downtube 8H 20 miles, and taking it 100+ miles on the train, every day I go to work. Anyway. Yesterday the frame broke. I've had this bike less than 20 months. A stress crack formed at the front of the seat tube, just below the seat post collar; by the time I noticed it there was only a centimeter or so of material holding it at the back. Needless to say I left that bike at home this morning, and rode my (also very worn out) Downtube Mini. Email from Yan is unclear whether I will be able to get a replacement frame (he will look when he gets back to PA). But bottom line, I am fed up with aluminum frames. A bike frame should last more than 5600 miles. I want a new bike. Again. So I want a folding bike with a steel frame and an internally geared hub. What are my options? I know about the Raleigh Twenty; but it doesn't fold up small enough for practical use. I know about the Brompton; I've never been a fan but I suppose I could give it another try. What else am I missing? I am considering a Speed Uno... I can reuse the wheel (with Sturmey Archer XRF8 hub) from my Downtube. But what about brakes? |
Originally Posted by invisiblehand
(Post 14065495)
... some Dahons (all 20" models from memory ... the Speed series is steel) have steel frames. ...
-HANK RYAN- Norman, Oklahoma USA |
Do you want a steel frame, or do you want a well built frame?
You could slap your existing 20" Sturmey 8 wheel on a Dahon Eco C6 with a chain tensioner. |
Originally Posted by HGR3inOK
(Post 14066155)
FWIW, the 2009 and newer USA-spec Dahon Speed Pro uses the aluminum Vitesse frame rather than the 4130 Speed frame.
-HANK RYAN- Norman, Oklahoma USA http://www.thorusa.com/dahon/current/speedp8.htm |
Originally Posted by tcs
(Post 14066340)
Do you want a steel frame, or do you want a well built frame?
You could slap your existing 20" Sturmey 8 wheel on a Dahon Eco C6 with a chain tensioner. |
Originally Posted by tcs
(Post 14066340)
Do you want a steel frame, or do you want a well built frame?
You could slap your existing 20" Sturmey 8 wheel on a Dahon Eco C6 with a chain tensioner. |
Originally Posted by pacificcyclist
(Post 14066632)
Except the Dahon Speed P8 which still uses a 4130 Chromoly. ...
-HANK RYAN- Norman, Oklahoma USA |
Originally Posted by HGR3inOK
(Post 14066729)
AFAIK, all Dahon Speed models (Uno, D7, P8, TR and Pro) use a 4130 steel frame except the 2009 and newer USA-spec Speed Pro. :)
-HANK RYAN- Norman, Oklahoma USA You're absolutely correct; but I was giving the OP another choice to ponder just adding $300 more to step up from a Speed Uno. Anyhow, I LOVE my Uno; my numero Uno coffee bike! Heheh.. |
Originally Posted by pacificcyclist
(Post 14065946)
Why not a Speed Uno and then replacing the stock hub with a Shimano Nexus Inter 3 coaster brake hub? I'm also thinking of replacing the single speed coaster hub with this being that it has 120mm spacing and the gearing is well balanced.
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Thanks for all the replies.
"Why steel?" is a fair question and I don't think I can answer it rationally. I don't think the Downtube bikes are badly made; and I'd say they did not wear out from use as much from the repeated tightening and untightening of the seat post collar. In the case of the 8H perhaps the way the seat tube diameter is reduced at the top introduces a weak spot. At any rate, I have ridden steel bikes all my life with no problems, and have had serious problems with aluminum frames. I won't pretend to be rational about this. I just don't want to deal with aluminum again if I can help it. I have also dealt with chain tensioners before, and don't want to repeat that experience. I know there are many people who have good experiences with them. I have not. Perhaps they are better mechanics than I; I don't know. Mine was always noisy, and it made changing a flat tire just a little more complicated, and I hate changing flats enough as is. As I mentioned in my initial post, I already have a perfectly good wheel with a Sturmey Archer XRF8 hub in it. There would be no need to think about a different hub even if there was a better one; but speaking of which, I don't believe there is a better hub. I really really like the XRF8. In fact I like the XRF8 better than the XRF8w I have on one bike; but I realize many XRF8's were defective and many people have had bad experiences with them. But as long as I can keep mine running --it is my third one-- I will. I do not like the Shimano Nexus 8 speed hub much. I have put a few thousand miles on mine, both touring or long distance riding and riding around town. There's nothing really wrong with it, but I dislike the unevenness of the steps between the gears, as a result of which I have never developed an intuitive sense of when to shift. Granted, I ride the Sturmey Archer one a lot more, so I expect the Shimano one to shift like that, which means I shift the wrong way a lot of the time; but even on long rides, when I overcome my tendency to shift backwards, the unevenness of the gearing continues to throw me off. I mention this in reference to the Tikit; there's no way I'm going to spend $1000+ on a bike with a Shimano hub on it. Premium prices demand premium components. I haven't tried the 11-sp shimano hub, so am not commenting on that. Nor am I going to go for Brompton's hybrid gearing. The combination of a three speed hub and a two speed derailleur means a lot of double shifting looking for the perfect gear, and is fine on long distance riding but not in the city. I know this from experience; I ride centuries on a bike from the 40's that has that type of gearing system. I'm confident the modern Brompton system is better, but in essence it will be the same. At present I'm waiting to hear from Yan whether I can get a replacement frame for my 8H. If not, I will get a Speed Uno and hope I can modify it to suit my needs. Even so I may take the broken 8H frame to a frame builder and say "can you make me one of these in steel?" |
Just an fyi,
There is currently a steel Swift on the NYC CL. A bit expensive and beaten up & the seller is asking too much in my opinion. But if you ambitious enough you can always offer a price for the bike with the intent to repaint and build it the way you want. |
Originally Posted by rhm
(Post 14068717)
... I may take the broken 8H frame to a frame builder and say "can you make me one of these in steel?"
-HANK RYAN- Norman, Oklahoma USA |
Originally Posted by BruceMetras
(Post 14067442)
Or, one of my favorites in the 120mm spacing would be the SRAM P-5 .. amazingly nice hub.. 3rd gear is direct drive, so 2 above and 2 below.. I've put a few on belt drive Moulton TSR-2's, and they are sweet.. mine gets ridden almost daily..
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A little cheaper here
http://www.ebikestop.com/spectro_p5_...ter-HU2509.php |
Originally Posted by ratdog
(Post 14068736)
Just an fyi,
There is currently a steel Swift on the NYC CL.
Originally Posted by HGR3inOK
(Post 14068783)
Or take them a Speed D7/P8 frame and see if they can put horizontal dropouts on it. :)
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