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


Go Back   > >

Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

User Tag List

Reply
 
Thread Tools Search this Thread
Old 12-16-06, 04:35 PM   #1
thequickfix
fails just as quickly
Thread Starter
 
thequickfix's Avatar
 
Join Date: Apr 2006
Location: two miles behind
Bikes:
Posts: 522
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
an unforseen build issue

Related to the "crank/chainring option" thread...

I started building my new IRO Jamie Roy this afternoon, and everything was looking great until the cranks went on. I haven't even torqued down the drive-side crank bolt all the way and the spider tabs are already touching the chainstay! I'm using sugino 75s and the matching bottom bracket (which I believe is symmetrical, and installed correctly, anyway). I have heard of people filing down the back of the crank spider, but these cranks don't have much room to mess with that without effing the chainring bolts.

I noticed that the off-the-rack Jamie Roy has a 130 BCD crank. Will it even be possible to run 144 BCD with 42mm chainline on this frame? Am I going to have to buy a new crankset?

This might have been relevant information before I bought the frame, dammit.

Anyone have any experience with this particular setup?
thequickfix is offline   Reply With Quote
Old 12-16-06, 10:08 PM   #2
Ceya
Guest
 
Join Date: Aug 2004
Bikes:
Posts: 3,242
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
crank/bb is it new or used?

S/F,
CEYA!
Ceya is offline   Reply With Quote
Old 12-16-06, 10:11 PM   #3
gregtheripper
i am batman
 
gregtheripper's Avatar
 
Join Date: Jul 2005
Location: Boston, MA
Bikes:
Posts: 561
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I have sugino 75's on a jamie roy and none of the problems you are describing... maybe the spindle length on the bb is too short?
gregtheripper is offline   Reply With Quote
Old 12-16-06, 10:11 PM   #4
Landgolier
THIS SPACE FOR RENT
 
Join Date: Jan 2006
Bikes:
Posts: 2,849
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I would call Tony and see if he's heard about any problems with this combo. Also, get a caliper and measure where the chainline is sitting now. This will tell you if the setup is even right.
Landgolier is offline   Reply With Quote
Old 12-16-06, 10:13 PM   #5
mander
Senior Member
 
Join Date: Sep 2006
Location: Van BC
Bikes:
Posts: 3,744
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I have filed down the "horizontally sticky-outy" tabs on a road double crankset with great success. Filing the "vertically sticky outy" ones seems dodgy as hell though.
mander is offline   Reply With Quote
Old 12-16-06, 10:51 PM   #6
roadfix
hello
 
roadfix's Avatar
 
Join Date: May 2003
Location: Los Angeles
Bikes:
Posts: 18,557
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Some street fixie frames that can handle wide tires have problems with true track cranksets. Jamie Roy might be one of them.
roadfix is offline   Reply With Quote
Old 12-16-06, 11:17 PM   #7
baxtefer
Cornucopia of Awesomeness
 
baxtefer's Avatar
 
Join Date: Oct 2004
Location: not where i used to be
Bikes:
Posts: 4,847
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by The Fixer
Some street fixie frames that can handle wide tires have problems with true track cranksets. Jamie Roy might be one of them.
+1 that'd be my guess too
the Jamie roy has clearance for 37c's
but doesnt' have the radically shaped chainstays that say a steamroller has.
baxtefer is offline   Reply With Quote
Old 12-16-06, 11:30 PM   #8
thequickfix
fails just as quickly
Thread Starter
 
thequickfix's Avatar
 
Join Date: Apr 2006
Location: two miles behind
Bikes:
Posts: 522
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The BB and cranks are technically both used, but are in good shape. I just took them off of my conversion this morning, and put them back on after I found out they wouldn't work. I don't have calipers to measure, but the chainline on my miyata road frame is pretty good. I'm using the 109mm 75 BB, so the spindle is definitely the right length...

Gregtheripper: are you using the 75 track cranks or the road version (which I believe has a 130mm BCD)?

Well, regardless of why this isn't working, I'm going to need a different crankset for this frame. Will the sugino RD's with 103mm bottom bracket work? I could just buy the IRO crankset, but I don't particularly like the looks of them. Any first-hand experience?
thequickfix is offline   Reply With Quote
Old 12-16-06, 11:38 PM   #9
thequickfix
fails just as quickly
Thread Starter
 
thequickfix's Avatar
 
Join Date: Apr 2006
Location: two miles behind
Bikes:
Posts: 522
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Some street fixie frames that can handle wide tires have problems with true track cranksets. Jamie Roy might be one of them.
This is probably the case. In addition to the tire clearance, the rear dropouts are inexplicably spaced at 130mm. I still love the frame, but I wish I would have known this would happen before I embarked on an unnecessary super-overhaul of my miyata.
thequickfix is offline   Reply With Quote
Old 12-16-06, 11:47 PM   #10
Landgolier
THIS SPACE FOR RENT
 
Join Date: Jan 2006
Bikes:
Posts: 2,849
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
http://search.freefind.com/find.html...ALL&search=all
^^^ all the jamie roys on FGG, plus some noise

People have gotten a lot of different stuff to work, I didn't see any 144's but then again I'm not exactly the go-to guy if you want to talk about real track cranks. Lots of people seem to do quasi-cross builds on this bike since it takes big tires/fenders, so there are a of smaller chainrings. What is it you can get down to with 144, like 45t or something?
Landgolier is offline   Reply With Quote
Old 12-17-06, 12:09 AM   #11
thequickfix
fails just as quickly
Thread Starter
 
thequickfix's Avatar
 
Join Date: Apr 2006
Location: two miles behind
Bikes:
Posts: 522
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
^^^thanks. I was just looking at those. I'm planning on making this my winter/bad weather bike with either knobby tires or fenders. I was only trying to use track cranks because that's what I had to work with from my temporary (gasp) conversion.

It seems like anything that's not 144 BCD should work. Just to clarify, its the backside of the spider that hits the chainstay, not the chainring teeth. Let this be a lesson to bikeforums search-function-using progeny...
thequickfix is offline   Reply With Quote
Old 12-17-06, 12:28 AM   #12
vobopl
re:member
 
Join Date: Jan 2005
Location: Cracow, Poland
Bikes: unknown make TT bike, fixed; Romet Sport, gone; titanium Pinarello gone;Colnago with Campy C-Record/Super Record,on it's way; Funny Gianni Motta; Buehler track, Polrad track chrome; titanium MTB on 28'', fixed; Tri Wheeler, fixed
Posts: 874
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Landgolier
I would call Tony and see if he's heard about any problems with this combo. Also, get a caliper and measure where the chainline is sitting now. This will tell you if the setup is even right.
I believe that was exactly the reason Tony had to change cranks for the nolageek project aka Katrina bike project.
vobopl is offline   Reply With Quote
Old 06-27-08, 01:13 AM   #13
kneeeerow
Senior Member
 
Join Date: Dec 2007
Bikes:
Posts: 129
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
why are there plenty of jamie roys on velospace.org that run sugino 75s on this frame? i am confused..
kneeeerow is offline   Reply With Quote
Old 06-27-08, 07:43 AM   #14
onespeed89
Senior Member
 
Join Date: Jun 2008
Bikes:
Posts: 292
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
anyone have IRO's number? Tony hasn't responded to 3 of my emails and its been weeks. IM kind of dissapointed.
onespeed89 is offline   Reply With Quote
Old 06-27-08, 09:22 PM   #15
jjvw
MFA
 
jjvw's Avatar
 
Join Date: Apr 2006
Location: Denver
Bikes: 1973 Italvega Nouvo Record; 1965 Hercules; 1982-83 Schwinn Mystery MTB
Posts: 1,187
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
After laying dormant for nearly 2 years.....this thread LIVES!!!
jjvw is offline   Reply With Quote
Old 06-27-08, 09:55 PM   #16
hxzero
Needs to Ride More
 
hxzero's Avatar
 
Join Date: Jan 2008
Location: Long Beach, CA
Bikes: 1996 Bianchi EL/OS, 1991 Miyata QuickCross
Posts: 770
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Oh my goodness. How do people think that this is okay?
hxzero is offline   Reply With Quote
Old 06-28-08, 01:49 AM   #17
thequickfix
fails just as quickly
Thread Starter
 
thequickfix's Avatar
 
Join Date: Apr 2006
Location: two miles behind
Bikes:
Posts: 522
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by thequickfix View Post
Let this be a lesson to bikeforums search-function-using progeny...
I guess I was asking for it.
thequickfix 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 03:53 PM.