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 01-06-10, 05:24 PM   #1
Soil_Sampler
A little North of Hell
Thread Starter
 
Join Date: Mar 2006
Bikes:
Posts: 4,788
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
SR Suntour

http://www.pedalconsumption.com/file..._crankset.html

Soil_Sampler is offline   Reply With Quote
Old 01-06-10, 05:48 PM   #2
hairnet
Fresh Garbage
 
hairnet's Avatar
 
Join Date: Apr 2009
Location: Los Angeles
Bikes:
Posts: 12,434
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 33 Post(s)
4 bolt?
hairnet is offline   Reply With Quote
Old 01-06-10, 06:33 PM   #3
Scrodzilla
There goes Tokyo
 
Scrodzilla's Avatar
 
Join Date: May 2009
Location: San Diego, CA
Bikes: EAI Bare Knuckle, 1975 Raleigh Pro Track
Posts: 26,473
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 37 Post(s)
That does look a little weird, huh?
__________________
__________________________________
Scrodzilla is offline   Reply With Quote
Old 01-06-10, 06:40 PM   #4
daft crunk
Senior Member
 
daft crunk's Avatar
 
Join Date: Apr 2008
Location: seattle
Bikes: alien track bike, cannondale t400 tourer
Posts: 150
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
There's probably one under the arm. I've seen some cranks like that. Terrible design.
daft crunk is offline   Reply With Quote
Old 01-06-10, 06:48 PM   #5
thirdgenbird
Senior Member
 
Join Date: Nov 2009
Bikes:
Posts: 7,108
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by daft crunk View Post
There's probably one under the arm. I've seen some cranks like that. Terrible design.
the 5th bolt probably threads into the back of the arm. a la campagnolo. record cranks have been like this for years with no ill effects that i know of. i hear its lighter and stiffer, what i do know is it looks nice.

Attached Images
File Type: jpg normal_4a35_3.JPG (38.6 KB, 15 views)
thirdgenbird is offline   Reply With Quote
Old 01-06-10, 06:51 PM   #6
Soil_Sampler
A little North of Hell
Thread Starter
 
Join Date: Mar 2006
Bikes:
Posts: 4,788
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Ritchey and Zipp(4 bolt)have that design also.
Soil_Sampler is offline   Reply With Quote
Old 01-06-10, 06:55 PM   #7
thirdgenbird
Senior Member
 
Join Date: Nov 2009
Bikes:
Posts: 7,108
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Soil_Sampler View Post
Ritchey and Zipp(4 bolt)have that design also.
i think the late 90s early 2000 specialized cranks were this way too

edit: i lied, strongarms were standard 4 bolt
thirdgenbird is offline   Reply With Quote
Old 01-06-10, 07:12 PM   #8
elTwitcho
Live without dead time
 
Join Date: Jun 2008
Location: Toronto
Bikes:
Posts: 2,137
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I'd have to assume there is a 5th bolt as otherwise it'd have to be an extremely bizarre proprietary ring design that wouldn't make a ton of sense. Having the bolt behind the arm is a bit of a pain in the ass but no big deal IMO
elTwitcho is offline   Reply With Quote
Old 01-06-10, 07:27 PM   #9
thirdgenbird
Senior Member
 
Join Date: Nov 2009
Bikes:
Posts: 7,108
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by elTwitcho View Post
I'd have to assume there is a 5th bolt as otherwise it'd have to be an extremely bizarre proprietary ring design that wouldn't make a ton of sense. Having the bolt behind the arm is a bit of a pain in the ass but no big deal IMO
you dont need a proprietary ring...

the bolt is long and threads into the crank from the back and there is a spacer between the chainring and crank. its not rocket science, or new technology.

whats a pain about it? its just one chainring bolt that doesn't require a nut or any tool to hold it...

edit:

early campy cranks with the hidden bolt did have a "half spider arm" behind the crank and the nut was pressed into the large chainring. this did use a special chainring but you could use a standard chainring and nut if you wanted to. (ive done it)

Last edited by thirdgenbird; 01-06-10 at 07:34 PM.
thirdgenbird is offline   Reply With Quote
Old 01-06-10, 07:52 PM   #10
elTwitcho
Live without dead time
 
Join Date: Jun 2008
Location: Toronto
Bikes:
Posts: 2,137
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by thirdgenbird View Post
you dont need a proprietary ring...

the bolt is long and threads into the crank from the back and there is a spacer between the chainring and crank. its not rocket science, or new technology.

whats a pain about it? its just one chainring bolt that doesn't require a nut or any tool to hold it...

edit:

early campy cranks with the hidden bolt did have a "half spider arm" behind the crank and the nut was pressed into the large chainring. this did use a special chainring but you could use a standard chainring and nut if you wanted to. (ive done it)
You misunderstood me.

If this ring was a 4 bolt, and in the pattern pictured, it would be a proprietary ring, as that would make it different than the current 4 bolt pattern in use.

As for being a pain, I thought I recalled trying to get at the bolt of a regular chainring that happened to have the crank arm in the way before, however upon looking at the bike in question I was mistaken. It wasn't behind the crank arm at all, just a pain in the ass because the thickness of the crank arm at the spider made it awkward. For some reason I thought it was completely behind the crank arm.

Last edited by elTwitcho; 01-06-10 at 07:57 PM.
elTwitcho is offline   Reply With Quote
Old 01-06-10, 07:59 PM   #11
thirdgenbird
Senior Member
 
Join Date: Nov 2009
Bikes:
Posts: 7,108
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by elTwitcho View Post
You misunderstood me.

If this ring was a 4 bolt, and in the pattern pictured, it would be a proprietary ring, as that would make it different than the current 4 bolt pattern in use.

As for being a pain, I thought I recalled trying to get at the bolt of a regular chainring that happened to have the crank arm in the way before, however upon looking at the bike in question I was mistaken. It wasn't behind the crank arm at all, just a pain in the ass because the thickness of the crank arm at the spider made it awkward. For some reason I thought it was completely behind the crank arm.
oops, that i did. my apologies sir.
thirdgenbird is offline   Reply With Quote
Old 01-06-10, 08:45 PM   #12
hairnet
Fresh Garbage
 
hairnet's Avatar
 
Join Date: Apr 2009
Location: Los Angeles
Bikes:
Posts: 12,434
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 33 Post(s)
Quote:
Originally Posted by thirdgenbird View Post
the 5th bolt probably threads into the back of the arm. a la campagnolo. record cranks have been like this for years with no ill effects that i know of. i hear its lighter and stiffer, what i do know is it looks nice.

OK, but it still looks odd to me. It just feels like it's missing something.
hairnet is offline   Reply With Quote
Old 01-06-10, 10:31 PM   #13
fuzz2050
Real Men Ride Ordinaries
 
fuzz2050's Avatar
 
Join Date: Sep 2008
Bikes:
Posts: 3,697
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
it looks different, I guess that's enough.
fuzz2050 is offline   Reply With Quote
Old 01-06-10, 10:44 PM   #14
thirdgenbird
Senior Member
 
Join Date: Nov 2009
Bikes:
Posts: 7,108
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by fuzz2050 View Post
it looks different, I guess that's enough.
or maybe its just the same






Attached Images
File Type: jpg c_campy_record.jpg (12.9 KB, 4 views)
File Type: jpg super_record_crank.jpg (86.6 KB, 8 views)
File Type: jpg cr407z35sil__170__rgt.jpg (24.3 KB, 7 views)
File Type: jpg Ritchey%20Crankset%20Compact%20WCS.jpg (11.7 KB, 6 views)
File Type: jpg z_logic_cranks.jpg (13.2 KB, 6 views)
File Type: jpg ZippVumaQuadCrank.jpg (44.3 KB, 6 views)
thirdgenbird is offline   Reply With Quote
Old 01-06-10, 10:48 PM   #15
Soil_Sampler
A little North of Hell
Thread Starter
 
Join Date: Mar 2006
Bikes:
Posts: 4,788
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
campy style

Quote:
Originally Posted by hairnet View Post
OK, but it still looks odd to me.
It just feels like it's missing something.
not missing, just hidden.

Soil_Sampler is offline   Reply With Quote
Old 01-06-10, 10:51 PM   #16
hairnet
Fresh Garbage
 
hairnet's Avatar
 
Join Date: Apr 2009
Location: Los Angeles
Bikes:
Posts: 12,434
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 33 Post(s)
Quote:
Originally Posted by Soil_Sampler View Post
not missing, just hidden.
I get that, but the look of it makes me feel like a gap has to be filled. I'm just being stupid
hairnet is offline   Reply With Quote
Old 01-07-10, 12:38 PM   #17
ADSR
Gentlemen.
 
ADSR's Avatar
 
Join Date: Jun 2008
Location: Chico, CA
Bikes: S-Works e5 Aerotech with 2009 Veloce and a Fulcrum 5s
Posts: 1,517
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I want one for sure.
ADSR is offline   Reply With Quote
Old 01-07-10, 03:51 PM   #18
letsgetsandy
good friends dont
 
Join Date: Aug 2009
Location: San Diego
Bikes: Zullo Custom Track
Posts: 156
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
centering the chainring is a little harder using the hidden 5th crank arm like this. atleast it was when I converted my campi record crank arms to single ring and used a Miche primato 135bcd chainring.thats the only draw back I ever had with this design. i think it looks rad!
letsgetsandy is offline   Reply With Quote
Old 01-07-10, 04:28 PM   #19
xbrosephx
moshmoshmosh
 
xbrosephx's Avatar
 
Join Date: Nov 2009
Bikes:
Posts: 48
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
man those look sick! im looking for a new crankset too, might have to check these out.
xbrosephx is offline   Reply With Quote
Old 01-08-10, 07:04 PM   #20
acorn_user
Senior Member
 
Join Date: Dec 2005
Location: Charlottesville, Virginia
Bikes: Dawes Kalahari, Puch Prima Super Sport, Graham Weigh 853
Posts: 1,990
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
They've been making these for road bikes for years as the Superbe and Superbe Comp. They do look quite nice, in a Campag Chorus-a-like way.
acorn_user is offline   Reply With Quote
Old 01-08-10, 09:12 PM   #21
thirdgenbird
Senior Member
 
Join Date: Nov 2009
Bikes:
Posts: 7,108
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by acorn_user View Post
They've been making these for road bikes for years as the Superbe and Superbe Comp. They do look quite nice, in a Campag Chorus-a-like way.
chorus had a traditional 5 arm spider until 10spd, record has been this style since 8spd, maybe longer...

i'm glad there are other fans!!

Last edited by thirdgenbird; 01-08-10 at 11:21 PM.
thirdgenbird is offline   Reply With Quote
Old 01-08-10, 10:55 PM   #22
Soil_Sampler
A little North of Hell
Thread Starter
 
Join Date: Mar 2006
Bikes:
Posts: 4,788
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Quote:
Originally Posted by thirdgenbird View Post
chorus had a traditional 5 arm spider until the latest carbon cranks,
record has been this style since 8spd, maybe longer...
alloy
Soil_Sampler is offline   Reply With Quote
Old 01-08-10, 11:12 PM   #23
thirdgenbird
Senior Member
 
Join Date: Nov 2009
Bikes:
Posts: 7,108
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Soil_Sampler View Post
alloy
well what do you know. my alloy chorus 10v cranks (and every one ive ever seen) has 5 spider arms.

either way, im pretty sure they started it with record 8v and chorus did not get it till later 10v

edit:
from what i can tell that crank was the 2006, the last year for square taper

Last edited by thirdgenbird; 01-08-10 at 11:22 PM.
thirdgenbird is offline   Reply With Quote
Old 01-08-10, 11:20 PM   #24
Dannihilator
User Title
 
Dannihilator's Avatar
 
Join Date: Oct 2002
Location: Annandale, New Jersey
Bikes: 2014 Surly Steamroller, 1989 Nishiki Altron
Posts: 19,419
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
4 bolt isn't exactly proprietary unless we are talking about 960 series shimano xtr. Despite the 960 xtr, all 4 bolt patterns are 104mm.
__________________
Signature.
Dannihilator is offline   Reply With Quote
Old 01-08-10, 11:34 PM   #25
ADSR
Gentlemen.
 
ADSR's Avatar
 
Join Date: Jun 2008
Location: Chico, CA
Bikes: S-Works e5 Aerotech with 2009 Veloce and a Fulcrum 5s
Posts: 1,517
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
This thread is giving me a serious Campagnolo jones. Now to figure out how to get my hands on a group set and turn my conversion into some sort of fixed gear conversion that has freewheel capabilities and multiple gears.
ADSR 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 10:42 PM.