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 09-03-05, 08:41 PM   #1
gnat
Senior Member
Thread Starter
 
Join Date: Jun 2005
Location: brooklyn
Bikes: iro markvpro, eai bareknuckle
Posts: 161
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
left side drive?

so. i was just wondering, is there a point to having a left side drive train (chain)? is there a difference that you can feel? any explanations would be appreciated!
gnat is offline   Reply With Quote
Old 09-03-05, 08:59 PM   #2
.shawn.
.-. --- --. ..- .
 
.shawn.'s Avatar
 
Join Date: Apr 2005
Bikes:
Posts: 25
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Duh. Because Sheldon does it.
.shawn. is offline   Reply With Quote
Old 09-03-05, 09:02 PM   #3
invicta
artistic tricyclist
 
Join Date: Aug 2005
Location: Fredericton, Canada
Bikes: 2k3 Norco CRD3, 2k2 Kona Stinky, 2k1 Devinci Cactus, 1984 Norco Eliminator Mk.II, 1973 CCM Mistral, 1980s Peugot Sport SL TT, 2k1 Giant XTC NRS1, 2k Norco VPS Drop, 1992 Specialized Rockhopper
Posts: 316
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You wouldnt have to worry about unscrewing your cog with backpressure any more...but your left pedal is liable to come off.
invicta is offline   Reply With Quote
Old 09-03-05, 09:49 PM   #4
dustinlikewhat
Bow$$
 
dustinlikewhat's Avatar
 
Join Date: Dec 2004
Location: Bodymore, Murderland
Bikes: Surly Instigator '02, Schwinn Traveler fixed conversion, '02 Fuji Track
Posts: 2,013
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
is there a point to having a left side drive train (chain)?
yep, it'll help you learn to use the search. pwnd.
dustinlikewhat is offline   Reply With Quote
Old 09-04-05, 12:25 AM   #5
el twe
crotchety young dude
 
el twe's Avatar
 
Join Date: Jan 2005
Location: SF, CA
Bikes: IRO Angus; Casati Gold Line; Redline 925; '72 Schwinn Olympic Paramount
Posts: 4,818
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by dustinlikewhat
yep, it'll help you learn to use the search. pwnd.


Don't know why, though...Probably has something to do with my friends' obsession with the word "pwnd."
__________________
Quote:
Originally Posted by CardiacKid View Post
I explained that he could never pay me enough cash for the amount of work I had put into that bike and the only way to compensate me for it was to ride the hell out of it.
IRO Angus Casati Gold Line
el twe is offline   Reply With Quote
Old 09-04-05, 01:33 AM   #6
crushkilldstroy
Hello.
 
crushkilldstroy's Avatar
 
Join Date: Jun 2005
Location: West Seattle
Bikes:
Posts: 2,902
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
so you can tear up the other pantleg.
crushkilldstroy is offline   Reply With Quote
Old 09-04-05, 01:48 AM   #7
gnat
Senior Member
Thread Starter
 
Join Date: Jun 2005
Location: brooklyn
Bikes: iro markvpro, eai bareknuckle
Posts: 161
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
strange. my roomie just got a bmx bike used, and it came set as a left hand drive train. we switched it back to right in the course of taking it apart to clean/relube, but not for any particular reason except for it being the norm.
gnat is offline   Reply With Quote
Old 09-04-05, 02:48 AM   #8
LóFarkas
LF for the accentdeprived
 
Join Date: May 2005
Location: Budapest, Hungary
Bikes:
Posts: 3,549
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
?????????? If you put a regular BMX freewheel on the left side, you can't go forwards... Was it a fixed BMX?
LóFarkas is offline   Reply With Quote
Old 09-04-05, 06:06 AM   #9
Aeroplane
jack of one or two trades
 
Aeroplane's Avatar
 
Join Date: Jun 2005
Location: Suburbia, CT
Bikes: Old-ass gearie hardtail MTB, fix-converted Centurion LeMans commuter, SS hardtail monster MTB
Posts: 5,637
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
ACS makes the Southpaw Freewheel for just such a left-hand drive setup. But I'd guess that it is reverse threaded, and you'd need a special hub too.

Too keep your pedal from unscrewing, use the front set of a tandem crankset. Viz, the SB.
Aeroplane is offline   Reply With Quote
Old 09-04-05, 08:26 AM   #10
LóFarkas
LF for the accentdeprived
 
Join Date: May 2005
Location: Budapest, Hungary
Bikes:
Posts: 3,549
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
^^^ Sure, but if you reverse that to right side drive as gnat said, you're screwed, again

Edit: BTW, your pedal will NEVER unthread if you put you cranks on the wrong way. Actually, I believe they are put on the wrong way now. The right side pedal is right-hand threaded, as we all know. Now, if the bearing gets stuck, and you pedal forwards, you will spin the pedal right off the crank. Same with the left pedal, that, for a mysterious reason, is left-hand threaded. Loosen your pedals, hold the pedal body, spin the crank forwards to check. Pedal will come off. This, of course, doesn't cause any problem as bearings never get stuck enough to loosen the screw. Now, what I don't understand and nobody could tell me is why pedals are threaded this way???

Last edited by LóFarkas; 09-04-05 at 08:35 AM.
LóFarkas is offline   Reply With Quote
Old 09-04-05, 08:45 AM   #11
eddiebrannan
Senior Member
 
eddiebrannan's Avatar
 
Join Date: Jul 2005
Location: NYC
Bikes: DW
Posts: 3,363
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by LóFarkas
?????????? If you put a regular BMX freewheel on the left side, you can't go forwards... Was it a fixed BMX?
can get left side freewheels (acs southpaw ffor example). reason you see this in bmx is so you can grind goofy

Last edited by eddiebrannan; 09-04-05 at 08:52 AM.
eddiebrannan is offline   Reply With Quote
Old 09-04-05, 08:50 AM   #12
b00sh00
The normal school
 
Join Date: Jul 2005
Location: The hill _ Boston
Bikes: rental
Posts: 51
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
How about two cranks/ two chainrings/ two chains/ two cogs (all equal)- Completely useless, but may be fun. Monster bike- sort of.
b00sh00 is offline   Reply With Quote
Old 09-04-05, 09:03 AM   #13
LóFarkas
LF for the accentdeprived
 
Join Date: May 2005
Location: Budapest, Hungary
Bikes:
Posts: 3,549
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
sure, eddiebrennan, now show me how you take them apart, and put them back together right side drive, and ride the bike forwards. (Original post: "got a bmx bike used, and it came set as a left hand drive train. we switched it back to right in the course of taking it apart to clean/relube"
Or, better still, read my post above yours.

b00sh00: double freewheel double drive fixed
LóFarkas is offline   Reply With Quote
Old 09-04-05, 09:27 AM   #14
gnat
Senior Member
Thread Starter
 
Join Date: Jun 2005
Location: brooklyn
Bikes: iro markvpro, eai bareknuckle
Posts: 161
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
the rear wheel was set up with double freewheels, so i suppose one is the regular one and one for the left drive. it rides fine.
gnat is offline   Reply With Quote
Old 09-04-05, 09:57 AM   #15
LóFarkas
LF for the accentdeprived
 
Join Date: May 2005
Location: Budapest, Hungary
Bikes:
Posts: 3,549
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
THE ANSWER. Thanks.
LóFarkas is offline   Reply With Quote
Old 09-04-05, 02:47 PM   #16
ryan_c
troglodyte
 
ryan_c's Avatar
 
Join Date: Jul 2004
Location: the tunnels
Bikes: Soma DoubleCross, Surly Steamroller, various others
Posts: 1,284
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Aeroplane
ACS makes the Southpaw Freewheel for just such a left-hand drive setup. But I'd guess that it is reverse threaded, and you'd need a special hub too.
AFAIK, the pawls just operate in the other direction. So, you use a normal hub/wheel flipped around. This way, things wouldn't get overcomplicated.
ryan_c is offline   Reply With Quote
Old 09-04-05, 03:48 PM   #17
gorn
Senior Member
 
Join Date: Aug 2004
Location: Chi-troit
Bikes: [2004 Bianchi Eros] [1988 Colnago XL Fixed Gear Conversion]
Posts: 577
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by ryan_c
AFAIK, the pawls just operate in the other direction. So, you use a normal hub/wheel flipped around. This way, things wouldn't get overcomplicated.
But normally freewheels are just screwed on by hand and then the pedalling motion torques them down, if the freewheel operated the opposite way on normal threads, then you'd have to torque down with a freewheel tool, and hope you never unscrew it when pedalling (Loctite/JBWeld? )
gorn is offline   Reply With Quote
Old 09-04-05, 04:46 PM   #18
Grunk
Senior Member
 
Grunk's Avatar
 
Join Date: May 2003
Location: Denver, CO
Bikes: Gunnar Street Dog, Bianchi Pista, ****ty Road Conversion, Fit Van Homan BMX
Posts: 348
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
People who ride BMX, and grind on the right side, user left-side drive setups to save their chainrings.
Grunk is offline   Reply With Quote
Old 09-04-05, 11:25 PM   #19
ryan_c
troglodyte
 
ryan_c's Avatar
 
Join Date: Jul 2004
Location: the tunnels
Bikes: Soma DoubleCross, Surly Steamroller, various others
Posts: 1,284
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by gorn
But normally freewheels are just screwed on by hand and then the pedalling motion torques them down, if the freewheel operated the opposite way on normal threads, then you'd have to torque down with a freewheel tool, and hope you never unscrew it when pedalling (Loctite/JBWeld? )
Holy cow, that's a good point, total oversight on my part. If no one else finds out and posts about threading etc. on left-side drive freewheels, I'll find out when I stop in the shop tuesday, the other mechanic there knows way too much about old bmx stuff, and I know another guy who works there on weekends actually has and rides a left-side drive bmx.
ryan_c is offline   Reply With Quote
Old 09-05-05, 07:47 AM   #20
3niktac
Senior Member
 
3niktac's Avatar
 
Join Date: Dec 2004
Location: Philadelphia
Bikes:
Posts: 58
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I believe that pedals are threaded the way that they are is because you want it to come off if the bearing locks up. If they were threaded the other way and your foot was attached to the pedal, then if the bearing locked up the bike would, oh I don't know, say rip your leg off or something.

C
3niktac is offline   Reply With Quote
Old 09-05-05, 11:16 AM   #21
LóFarkas
LF for the accentdeprived
 
Join Date: May 2005
Location: Budapest, Hungary
Bikes:
Posts: 3,549
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by 3niktac
I believe that pedals are threaded the way that they are is because you want it to come off if the bearing locks up. If they were threaded the other way and your foot was attached to the pedal, then if the bearing locked up the bike would, oh I don't know, say rip your leg off or something. C
Not on a freewheel bike, which is what the design was made for... The threading is supposed to keep pedals from unscrewing, only I think it's amazingly F'd up. I am open for other ideas;-)
LóFarkas is offline   Reply With Quote
Old 09-08-05, 11:36 AM   #22
lz4005
coasterbrakelockup
 
lz4005's Avatar
 
Join Date: Nov 2004
Location: parts unknown
Bikes: surly steamroller w/coaster brake, electra single speed cruiser, specialized rockhopper commuter, no-name single speed folder, 700c ultimate wheel, 24" unicycle, specialized bmx lsd, single seat single speed huffy tandem, pink upsidedown parade bike
Posts: 825
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by b00sh00
How about two cranks/ two chainrings/ two chains/ two cogs (all equal)- Completely useless, but may be fun. Monster bike- sort of.
Done and done.
lz4005 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 06:55 PM.