Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

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.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 09-10-13, 03:11 PM   #1
IRideISmile
Junior Member
Thread Starter
 
Join Date: Sep 2013
Bikes:
Posts: 18
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Dahon Speed Uno accomodate frnt/back V or Cali Brakes (I'll get rid of coaster)?How?

Hi,
I'm contemplating getting a Dahon Speed Uno, but hate coaster brakes. I've looked carefully at online pics and can't tell if the fork and rear triangle have the right fittings for V or Calliper brakes. If they don't, can they be added somehow? How? Thanks!
IRideISmile is offline   Reply With Quote
Old 09-10-13, 04:44 PM   #2
brakemeister 
New usename ThorUSA
 
brakemeister's Avatar
 
Join Date: Nov 2004
Location: Southern Illinois USA
Bikes:
Posts: 2,469
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
they don't and they cannot be added ( easily anyhow... framebuilder could, warranty would be dead , new paint, expensive to say the least )
furthermore the rear is 110 mm normal wheel would be 130 .....

You can add caliper brakes ... and take the coaster out of the brake so to speak ....
__________________
www.thorusa.com
Dahon : Freedom Unfolds
Tern : all about the ride
brakemeister is offline   Reply With Quote
Old 09-10-13, 04:47 PM   #3
dynaryder
PatronSaintOfDiscBrakes
 
dynaryder's Avatar
 
Join Date: Apr 2005
Location: BicycleSPACE warehouse in SW Washington DC
Bikes:
Posts: 6,983
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Adding canti posts would be something for an experienced frame builder to do;I don't think the cost/effort would be worth it. Depending on rear spacing,you could go with a drum/roller brake. From the pics I've seen,it looks like there's a hole in the seatstay bridge. If so,you could always mount a caliper brake.
__________________

C'dale BBU('05 and '09)/Super Six/Hooligan8and 3,Kona Dew Deluxe,Novara Buzz/Safari,Surly Big Dummy,Marin Pt Reyes,Giant Defy 1,Schwinn DBX SuperSport,Dahon Speed Pro TT,Brompton S6L/S2E-X
dynaryder is offline   Reply With Quote
Old 09-10-13, 06:04 PM   #4
IRideISmile
Junior Member
Thread Starter
 
Join Date: Sep 2013
Bikes:
Posts: 18
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Rear spacing 110mm! That ixnes my plans , at least i think so....
d/t nice horizontal droupouts i was thinking Nexus 8sp IGH.... With chromo i know it can be spread some, but 110 to 126mm (Nexus with no roller brake fittings) is too much?
IRideISmile is offline   Reply With Quote
Old 09-10-13, 06:06 PM   #5
IRideISmile
Junior Member
Thread Starter
 
Join Date: Sep 2013
Bikes:
Posts: 18
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Newbie question: got that rear calipers can be added, can they be added to the front?
IRideISmile is offline   Reply With Quote
Old 09-10-13, 08:03 PM   #6
sreten
Banned.
 
Join Date: Feb 2013
Location: Brighton UK
Bikes: 20" Folder, Road Bike
Posts: 1,664
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hi,

Don't buy a new bike with things you don't want and want to change.
Buy a new bike with all the the things you want, like gears ....

rgds, sreten.

Last edited by sreten; 09-10-13 at 08:08 PM.
sreten is offline   Reply With Quote
Old 09-10-13, 08:36 PM   #7
brakemeister 
New usename ThorUSA
 
brakemeister's Avatar
 
Join Date: Nov 2004
Location: Southern Illinois USA
Bikes:
Posts: 2,469
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by IRideISmile View Post
Newbie question: got that rear calipers can be added, can they be added to the front?
yes no prob
__________________
www.thorusa.com
Dahon : Freedom Unfolds
Tern : all about the ride
brakemeister is offline   Reply With Quote
Old 09-11-13, 12:29 AM   #8
jerrysimon
Senior Member
 
Join Date: Jan 2010
Bikes:
Posts: 433
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The UK versions have V brakes front and back

Jerry
jerrysimon is offline   Reply With Quote
Old 09-11-13, 04:16 PM   #9
dynaryder
PatronSaintOfDiscBrakes
 
dynaryder's Avatar
 
Join Date: Apr 2005
Location: BicycleSPACE warehouse in SW Washington DC
Bikes:
Posts: 6,983
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
I believe you're thinking about the Mu Uno. The UK versions of the Mu have V brakes.
__________________

C'dale BBU('05 and '09)/Super Six/Hooligan8and 3,Kona Dew Deluxe,Novara Buzz/Safari,Surly Big Dummy,Marin Pt Reyes,Giant Defy 1,Schwinn DBX SuperSport,Dahon Speed Pro TT,Brompton S6L/S2E-X
dynaryder is offline   Reply With Quote
Old 09-11-13, 04:19 PM   #10
dynaryder
PatronSaintOfDiscBrakes
 
dynaryder's Avatar
 
Join Date: Apr 2005
Location: BicycleSPACE warehouse in SW Washington DC
Bikes:
Posts: 6,983
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Quote:
Originally Posted by IRideISmile View Post
Rear spacing 110mm!
Sturmey Archer make a 3spd with 110OLD.
__________________

C'dale BBU('05 and '09)/Super Six/Hooligan8and 3,Kona Dew Deluxe,Novara Buzz/Safari,Surly Big Dummy,Marin Pt Reyes,Giant Defy 1,Schwinn DBX SuperSport,Dahon Speed Pro TT,Brompton S6L/S2E-X
dynaryder is offline   Reply With Quote
Old 09-11-13, 04:41 PM   #11
BruceMetras
Senior Member
 
Join Date: Aug 2005
Location: San Rafael, California
Bikes:
Posts: 1,910
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 33 Post(s)
I'd guess the Speed Uno has the same 120mm spacing, just like the Mu Uno, as they both use the same Shimano coaster hub.. also, if like the Mu Uno I'm familiar with, that thin rear cross piece is not suitable for a caliper brake, and is not equipped with a brake boss, but simply a hole for a fender mount .. I'd probably double check the frame you're interested in, just in case Dahon changed the frames for their newest models to include a caliper brake boss..
BruceMetras is offline   Reply With Quote
Old 09-11-13, 05:00 PM   #12
pacificcyclist
Senior Member
 
Join Date: Dec 2007
Location: Canada
Bikes: 2012 Masi Speciale CX : 2013 Ghost 29er EBS
Posts: 918
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by IRideISmile View Post
Hi,
I'm contemplating getting a Dahon Speed Uno, but hate coaster brakes. I've looked carefully at online pics and can't tell if the fork and rear triangle have the right fittings for V or Calliper brakes. If they don't, can they be added somehow? How? Thanks!
You can add a front caliper brake to your Speed Uno, but you can not on the rear because the bridge hole mount is for fender installation not a caliper brake. That's coming from my Dahon dealer. The rear spacing is 120mm and will be able to take a Shimano Nexus 3 or the 2 speed SRAM Automatix and the 2 speed Sturmey Archer S2C kickback hub. I have the S2c hub.

What's wrong with the coaster brake?!? It's powerful enough for a good stop and since the majority of the braking power is on the front (about 90%), you would be concerned about getting a good front brake and leave the coaster intact. I live in mountaneous Vancouver, Canada with insane hills and the Sturmey Archer coaster brake seemed to work just fine in conjunction with a front brake. The only time I killed it is when I used it solely to decend down a steep hill, but the new hub from Sturmey Archer which was sent to me for free under warranty seemed to have fixed it and shifting is fine thus far.
pacificcyclist is offline   Reply With Quote
Old 09-11-13, 05:44 PM   #13
fusilierdan
Senior Member
 
fusilierdan's Avatar
 
Join Date: May 2008
Location: Rockland County, NY
Bikes: Giant TCRC2 2007, Dahon MU P8 2012, GT Avalance 2011
Posts: 317
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Not an Uno but...

http://handsonbike.blogspot.com/2013/09/elosix-rear-caliper-brake-adaptor-for.html
fusilierdan is offline   Reply With Quote
Old 09-11-13, 07:12 PM   #14
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 22,205
Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 1142 Post(s)
More pre worrying , get a bike with brakes that you like .

rather than one with something you promptly are needing to modify.


But ..
if there is a bolt hole in a seat stay cross brace

there is an adapter for BMX bikes to fit And add V brakes to those..

that came with a long reach sidepull or something..

Might be something to try ..

Last edited by fietsbob; 09-11-13 at 07:16 PM.
fietsbob is offline   Reply With Quote
Old 09-12-13, 12:44 AM   #15
badmother
Senior Member
 
badmother's Avatar
 
Join Date: Nov 2007
Bikes:
Posts: 3,315
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 92 Post(s)
Quote:
Originally Posted by dynaryder View Post
Sturmey Archer make a 3spd with 110OLD.
And a 5 speed http://www.sturmey-archer.com/produc...d/4/id/64.html
badmother is offline   Reply With Quote
Old 09-12-13, 10:51 PM   #16
IRideISmile
Junior Member
Thread Starter
 
Join Date: Sep 2013
Bikes:
Posts: 18
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks everyone for your kind offers of ideas and recommendations. To be clear, my main interest in the Speed Uno was the horizontal drops and the chromo because I thought I could start with an inexpensive frame and then end up with a Nexus 8 speed IGH (I want the Nexus 8 because of the range of gearing and because it is SILENT. The Sturmey's and SRAMS are noisy with "tik tik tik tik" while peddling and especially while coasting - that is not for me. (FYI, I tried the Mu EX with Nexus 8 but found the frame felt "dead" while riding. Someday soon I'm going to writeup my fantasy folder and the intense process over the last year of going through folders trying to find it, then deciding to build up something.)

Anyway, for now I understand the brake options for the Speed Uno (thanks everyone for your input), but not clear on the rear OLD measurement, which is really important to me, as it's the difference between being able to spread the triangle to fit the hub or not.

Thor says the Speed Uno's OLD is 110mm and two senior forum members say it's 120mm.




Quote:
Originally Posted by brakemeister View Post
the rear is 110 mm normal wheel would be 130 ....

Quote:
Originally Posted by BruceMetras View Post
I'd guess the Speed Uno has the same 120mm spacing, just like the Mu Uno, as they both use the same Shimano coaster hub.. ..

Quote:
Originally Posted by pacificcyclist View Post
The rear spacing is 120mm and will be able to take a Shimano Nexus 3 or the 2 speed SRAM Automatix and the 2 speed Sturmey Archer S2C kickback hub. I have the S2c hub.

That's very reliable sources saying different measurements! Can you guys reach agreement on the Speed's rear OLD? If I bought, it would likely be online, so not able to measure it myself. Thanks!

Last edited by IRideISmile; 09-12-13 at 11:00 PM. Reason: put wrong bike model (it's Speed, not Mu)
IRideISmile is offline   Reply With Quote
Old 09-12-13, 10:58 PM   #17
IRideISmile
Junior Member
Thread Starter
 
Join Date: Sep 2013
Bikes:
Posts: 18
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by sreten View Post
Hi,

Don't buy a new bike with things you don't want and want to change.
Buy a new bike with all the the things you want, like gears ....

rgds, sreten.
I haven't yet found a folding bike with everything I want that also rides how I want. (I'll post about the journey sometime.) Realizing i'll likely have to build up/piecemeal myself, which is actually really cool (except for the cost part! ;-) See my post above for why i've been considering the Speed Uno

Last edited by IRideISmile; 09-12-13 at 10:59 PM. Reason: wrong word
IRideISmile is offline   Reply With Quote
Old 09-13-13, 09:01 AM   #18
pacificcyclist
Senior Member
 
Join Date: Dec 2007
Location: Canada
Bikes: 2012 Masi Speciale CX : 2013 Ghost 29er EBS
Posts: 918
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by IRideISmile View Post
Thanks everyone for your kind offers of ideas and recommendations. To be clear, my main interest in the Speed Uno was the horizontal drops and the chromo because I thought I could start with an inexpensive frame and then end up with a Nexus 8 speed IGH (I want the Nexus 8 because of the range of gearing and because it is SILENT. The Sturmey's and SRAMS are noisy with "tik tik tik tik" while peddling and especially while coasting - that is not for me. (FYI, I tried the Mu EX with Nexus 8 but found the frame felt "dead" while riding. Someday soon I'm going to writeup my fantasy folder and the intense process over the last year of going through folders trying to find it, then deciding to build up something.)

Anyway, for now I understand the brake options for the Speed Uno (thanks everyone for your input), but not clear on the rear OLD measurement, which is really important to me, as it's the difference between being able to spread the triangle to fit the hub or not.

Thor says the Speed Uno's OLD is 110mm and two senior forum members say it's 120mm.













That's very reliable sources saying different measurements! Can you guys reach agreement on the Speed's rear OLD? If I bought, it would likely be online, so not able to measure it myself. Thanks!
My S2C kickback hub is 116mm OLD and the Shimano Nexus 3 hub has a 120mm OLD which also fits the Speed Uno.
pacificcyclist is offline   Reply With Quote
Old 09-13-13, 09:11 AM   #19
mconlonx 
Nobody
 
mconlonx's Avatar
 
Join Date: Jun 2007
Bikes:
Posts: 7,359
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 1466 Post(s)
There's various adapters available to mount caliper brakes on bikes not built for them. "Track bike brake adapter" search yields Diacomp components which might work. It's a kludge, not an elegant one, but it would get you brakes cheaper than having a frame welded.

Rear brake + adapter:

Front brake + adapter:
__________________
I know next to nothing. I am frequently wrong.
mconlonx is offline   Reply With Quote
Old 09-13-13, 10:28 AM   #20
brakemeister 
New usename ThorUSA
 
brakemeister's Avatar
 
Join Date: Nov 2004
Location: Southern Illinois USA
Bikes:
Posts: 2,469
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
its 120 mmm senior moment around here :-)
Must be all that work prior to go to the Interbike show
:-)

some frames do have rear brake bolts some dont.... dont ask me why they are different ..makes no sense
__________________
www.thorusa.com
Dahon : Freedom Unfolds
Tern : all about the ride
brakemeister is offline   Reply With Quote
Old 09-16-13, 06:36 AM   #21
anga
Senior Member
 
Join Date: Aug 2013
Bikes:
Posts: 123
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Had the same idea, but gave up due to coaster brake.
OLD of 8-speed Nexus hub is 132mm, IIRC.
anga is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 04:41 AM.