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-   -   Folder with disc brakes? (https://www.bikeforums.net/folding-bikes/714114-folder-disc-brakes.html)

GlowBoy 02-20-11 08:30 PM


Originally Posted by chucky (Post 12252379)
Since the fork legs are significantly shorter for 20" wheels the bending moment will be much smaller. Although I could believe that Bike Friday would use heavier tubing for their disc fork because they already use different tubing for different size riders, the Swift is a comparatively ham handed design whose stock fork is already overbuilt. I seriously doubt HPM specifically designed their fork for disc usage, but rather simply recognized that the stock fork is already substantial enough to handle all sorts of abuse. Go ahead and ask them if their disc fork is any different from the Xootr fork; I'd be very interested in their response.

Good points. I wasn't concerned about the issue until I saw the BF Tikit fork failure referenced from the other thread, but that was likely a bad weld and I probably shouldn't get too worried.


But given how picky you are about everything ...
I prefer the word "demanding" :D

GlowBoy 02-25-11 02:33 PM

The more I learn, the more I'm leaning towards the Swift. BFs do sound nice (and I have ridden one, and thought the performance was fantastic), but I still really like the Swift design. I've also heard that BFs can be a bit flexy in the stem/riser/bar area; I'm definitely a stand-up-and-mash on the hills kind of guy, so that's a downside and I've heard that the Swifts are stiffer in front. It's entirely possible that the Llama is beefier enough to negate this issue, of course. Also, I talked to a BF NWT owner on the train the other day, and he said the chain drops every time he folds it. Not a big deal, but an annoyance. Neither of these might be enough to deter me from BF, but then there's the likelihood that I wouldn't be able to roll a disc (or drum) equipped Friday out of the factory for under $1800 or so.

And as I've mentioned on the disc brake - or not - thread, I am (gasp) considering drum brakes. Maybe even in the front, the more I'm learning about modern drums. Not only does that sidestep any bent-rotor and wet-weather concerns, but it enables me to get by with the cheaper and lighter Xootr frame. And dovetails nicely with the idea of a 5-speed Sturmey-Archer hub, which appeals to me greatly.

This could well turn out to be ultimate folding commuter bike (not coincidentally, practically the same thing as bendembroski is running). And for about a grand when it's all said and done.

Dynocoaster 02-25-11 02:38 PM

Well this is probably out of the question then http://www.sheldonbrown.com/harris/shimano-nexus.html

mtalinm 02-25-11 03:04 PM

to the flex issue, I'm actually a bit above the weight limit for a Swift but have not experienced any flex. It's a remarkably solid bike. And my chain has never dropped while folding, though that could just be a defect with your friend's bike.

If you go with drum brakes avoid the Shimano Nexave at all costs. I was just out in a downpour with the stock V-Brakes, no probs.

the internal hub is a nice idea - simplifies the suitcase packing process b/c you don't have to remove the derailleur - but I stuck with the stock setup and then added a front derailleur for an extra 8 gears on the low side.

good luck on your decsn


Originally Posted by GlowBoy (Post 12279698)
The more I learn, the more I'm leaning towards the Swift. BFs do sound nice (and I have ridden one, and thought the performance was fantastic), but I still really like the Swift design. I've also heard that BFs can be a bit flexy in the stem/riser/bar area; I'm definitely a stand-up-and-mash on the hills kind of guy, so that's a downside and I've heard that the Swifts are stiffer in front. It's entirely possible that the Llama is beefier enough to negate this issue, of course. Also, I talked to a BF NWT owner on the train the other day, and he said the chain drops every time he folds it. Not a big deal, but an annoyance. Neither of these might be enough to deter me from BF, but then there's the likelihood that I wouldn't be able to roll a disc (or drum) equipped Friday out of the factory for under $1800 or so.

And as I've mentioned on the disc brake - or not - thread, I am (gasp) considering drum brakes. Maybe even in the front, the more I'm learning about modern drums. Not only does that sidestep any bent-rotor and wet-weather concerns, but it enables me to get by with the cheaper and lighter Xootr frame. And dovetails nicely with the idea of a 5-speed Sturmey-Archer hub, which appeals to me greatly.

This could well turn out to be ultimate folding commuter bike (not coincidentally, practically the same thing as bendembroski is running). And for about a grand when it's all said and done.


Dynocoaster 03-02-11 09:39 AM

Here is your disc brake bike from BF http://cgi.ebay.com/Bike-Friday-Pock...item43a58ff967

vik 03-02-11 11:13 AM


Originally Posted by Dynocoaster (Post 12301972)
Here is your disc brake bike from BF http://cgi.ebay.com/Bike-Friday-Pock...item43a58ff967

http://farm6.static.flickr.com/5214/...2a3a9dab_o.jpg

vik 03-02-11 12:52 PM


Originally Posted by Dynocoaster (Post 12301972)
Here is your disc brake bike from BF http://cgi.ebay.com/Bike-Friday-Pock...item43a58ff967

Yikes that sold fast!

fietsbob 03-02-11 01:01 PM

I just got off the phone with Walter so it was Me, I put down some deposit,
an off Ebay bypass.
Dynocoaster sent a PM as an alert. :beer:

Now I got a loose R'off hub, and a 32 hole SON 28 Hub.

I was thinking about getting built up around, in just that kind of rig.

With UnUsed V brake bosses to Mount to, may see if Lane can go take measurements to build a small Porteur rack to fit.

since they are both down there.. and I'm Not.. could take the Bus

Or use The PDX VA hospital since Oregon Does have Medical Shuttles
for us old Fools. change shuttles there?

fietsbob 03-02-11 01:29 PM

Hey Vik , Hows that Brompton O Bag bodge for the Tikit working out?

Just curious..

vik 03-02-11 01:35 PM


Originally Posted by fietsbob (Post 12303075)
Hey Vik , Hows that Brompton O Bag bodge for the Tikit working out?

Just curious..

I'm waiting for the rack from CETMA so I can't give you any feedback yet.

Congrats on the PL - looks sweet!

GlowBoy 03-02-11 02:03 PM

Wow, that's expensive. But then again, the hub is worth half as much as the bike!

vik 03-02-11 02:19 PM


Originally Posted by GlowBoy (Post 12303185)
Wow, that's expensive. But then again, the hub is worth half as much as the bike!

That was a great deal. The Rohloff and SON would set you back nearly $2K on their own.

fietsbob 03-02-11 03:44 PM

sent Lane a picture to see if a Porteur like rack might be made suitable to go on it,
the V brake bosses would be a good strut anchor + rack to provide a light mount.


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