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 09-12-17, 07:25 PM   #1
kmcrawford111
50/50 Road/eBike Commuter
Thread Starter
 
kmcrawford111's Avatar
 
Join Date: May 2007
Location: Valparaiso, IN
Bikes: Specialized Roubaix, Specialized Sirrus, Brompton S2L, Taga 2.0
Posts: 775
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Looking for *Integrated* 44T (or so) Brompton Crankset - Or one Compatible

Hello All:

I have a 2012 Brompton - one made before the spider cranks were used. The 54T chainring is too large. I'd like to switch to a 44T without the much, as far as I can tell, higher expense (and trouble) of changing both the BB and the Crankset (and the left crank if I want it to look decent) to the spider/JIS type. I don't use my Brompton frequently, so the BB is fine.

I'm willing to trade my 54T one. Or if someone can point me to something that will work without being a kludge, that would be nice.

The closest thing I've found is this:

STRONGLIGHT ST55 Single Chainset :: 24.00 :: Parts & Accessories :: Components - Gears - Chainsets :: Spa Cycles, Harrogate - The touring cyclists specialist.

Which looks to be almost identical to the stock one I have now. The only trouble is that I'm not sure if it's ISO or JIS. Finding this crankset for sale elsewhere indicates that the newer cranksets of this make may be JIS.

At this point I might even be happy to find even the 50T crankset of the older type.

Any help would be appreciated!
kmcrawford111 is offline   Reply With Quote
Old 09-12-17, 09:38 PM   #2
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 8
Posts: 27,183
Mentioned: 48 Post(s)
Tagged: 0 Thread(s)
Quoted: 2601 Post(s)
I have a 50t, took it off when I installed a Mountain Drive crank, so have the BB too..
fietsbob is offline   Reply With Quote
Old 09-12-17, 10:17 PM   #3
kmcrawford111
50/50 Road/eBike Commuter
Thread Starter
 
kmcrawford111's Avatar
 
Join Date: May 2007
Location: Valparaiso, IN
Bikes: Specialized Roubaix, Specialized Sirrus, Brompton S2L, Taga 2.0
Posts: 775
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by fietsbob View Post
I have a 50t, took it off when I installed a Mountain Drive crank, so have the BB too..
Which version? Interested in selling?
kmcrawford111 is offline   Reply With Quote
Old 09-13-17, 08:20 AM   #4
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 8
Posts: 27,183
Mentioned: 48 Post(s)
Tagged: 0 Thread(s)
Quoted: 2601 Post(s)
PM sent..
fietsbob is offline   Reply With Quote
Old 09-13-17, 08:28 AM   #5
kmcrawford111
50/50 Road/eBike Commuter
Thread Starter
 
kmcrawford111's Avatar
 
Join Date: May 2007
Location: Valparaiso, IN
Bikes: Specialized Roubaix, Specialized Sirrus, Brompton S2L, Taga 2.0
Posts: 775
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Fyi, the one I linked to is JIS.
kmcrawford111 is offline   Reply With Quote
Old 09-13-17, 08:46 AM   #6
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 8
Posts: 27,183
Mentioned: 48 Post(s)
Tagged: 0 Thread(s)
Quoted: 2601 Post(s)
Yea, Strong light may use both...in various product lines* my Koga WTR came with a Stronglight Mygal Crank and a Shimano UN style Cartridge BB..

So swapping over to an M730 crankset worked well , without changing the BB.. [until it needs replacement]

*maybe ISO in their premium road bike line.. but I'm guessing.. they have in the past..



...
fietsbob is offline   Reply With Quote
Old 09-13-17, 12:07 PM   #7
1nterceptor
LET'S ROLL
 
1nterceptor's Avatar
 
Join Date: Nov 2009
Location: NEW YORK, NY - USA
Bikes: 2014 BMC Gran Fondo, 2013 Brompton S6L-X
Posts: 4,178
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 113 Post(s)
No need to change BB & left crank; if you can find the stock Brompton part.
I think BFold in NYC has them. Need to cut chain as well.
__________________
Lite That Never Goes Out: https://www.youtube.com/watch?v=w-0p...6zPoymgKaIoDLA
1nterceptor is offline   Reply With Quote
Old 09-13-17, 05:00 PM   #8
kmcrawford111
50/50 Road/eBike Commuter
Thread Starter
 
kmcrawford111's Avatar
 
Join Date: May 2007
Location: Valparaiso, IN
Bikes: Specialized Roubaix, Specialized Sirrus, Brompton S2L, Taga 2.0
Posts: 775
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by 1nterceptor View Post
No need to change BB & left crank; if you can find the stock Brompton part.
I think BFold in NYC has them. Need to cut chain as well.
https://www.youtube.com/watch?v=hYo8...IoDLA&index=41
I've looked all over, including there, and nobody seems to carry it any longer. I've read it's discontinued. Should've bought one earlier, I suppose.

I'm buying fietsbob's 50T one. I'll see how that one works. At least it'll be more suitable than the 54T.

Thanks anyway!

Last edited by kmcrawford111; 09-13-17 at 05:04 PM.
kmcrawford111 is offline   Reply With Quote
Old 09-17-17, 07:57 PM   #9
1nterceptor
LET'S ROLL
 
1nterceptor's Avatar
 
Join Date: Nov 2009
Location: NEW YORK, NY - USA
Bikes: 2014 BMC Gran Fondo, 2013 Brompton S6L-X
Posts: 4,178
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 113 Post(s)
Quote:
Originally Posted by kmcrawford111 View Post
I've looked all over, including there, and nobody seems to carry it any longer. I've read it's discontinued. Should've bought one earlier, I suppose.

I'm buying fietsbob's 50T one. I'll see how that one works. At least it'll be more suitable than the 54T.

Thanks anyway!
Was at BFold yesterday, Saturday. Owner said chainring/crank arm
combos are discontinued. But he has some of the 44T combo in the store.
__________________
Lite That Never Goes Out: https://www.youtube.com/watch?v=w-0p...6zPoymgKaIoDLA
1nterceptor is offline   Reply With Quote
Old 09-17-17, 09:50 PM   #10
kmcrawford111
50/50 Road/eBike Commuter
Thread Starter
 
kmcrawford111's Avatar
 
Join Date: May 2007
Location: Valparaiso, IN
Bikes: Specialized Roubaix, Specialized Sirrus, Brompton S2L, Taga 2.0
Posts: 775
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by 1nterceptor View Post
Was at BFold yesterday, Saturday. Owner said chainring/crank arm
combos are discontinued. But he has some of the 44T combo in the store.
I had only checked on their website before, then later emailed them. You are right, because I've been in contact with someone there, and they've already shipped one to me. Many thanks for your help!
kmcrawford111 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 06:43 AM.


 
  • Ask a Question
    get answers from real people!
Click to start entering your question.
I HAVE A QUESTION