Does rear spacing make any practical difference?
06-28-04 | 09:07 AM
#1
Thread Starter
Gizmo
Joined: May 2004
Posts: 312
Likes: 0
From: Austin, TX
Bikes: custom Moyer track bike, '94 Bianchi track bike, 99ish Bianchi Reparto Corsa 9speed record/chorus, '81ish Koga Miyata FullPro, '84 trek 720 touring bike, mid-80s Montagner slowly being built w/period campy
Does rear spacing make any practical difference?
I just got a new 531 road frame that I'm going to make fixie, and the rear spacing appears to be 123mm for some reason so I can go either 120mm or 126mm on the rear wheel. I'm wondering if there's any major handling difference or reason to go with one over the other. Thanks in advance.
06-28-04 | 09:33 AM
#2
Senior Member
Joined: Aug 2003
Posts: 377
Likes: 0
From: New Caney Texas
120 will have the cog closer to the centerline of the bike allowing you to run narrower cranks, if you like that sort of thing. Of course between 120 and 126 we're talking possibly (not definatley) moving the cranks together 6mm, that's 1/4 inch so not much of a difference really.
I'd personally go with 120 as you have way more hub choices in 120.
I'd personally go with 120 as you have way more hub choices in 120.
06-28-04 | 09:59 AM
#4
Thread Starter
Gizmo
Joined: May 2004
Posts: 312
Likes: 0
From: Austin, TX
Bikes: custom Moyer track bike, '94 Bianchi track bike, 99ish Bianchi Reparto Corsa 9speed record/chorus, '81ish Koga Miyata FullPro, '84 trek 720 touring bike, mid-80s Montagner slowly being built w/period campy
what's "quack"?
06-28-04 | 01:15 PM
#6
Filthy Cycling Rodent
Joined: May 2004
Posts: 159
Likes: 0
From: Santa Cruise
Bikes: too many
how far your crank/chainring is away from your frame. unless its obnoxiously bad, you wouldnt have to worry about it unless youre racing or are a snob...
so, pick a nice hub and dont worry. 126 might be nicer if you have the option, but 120 is definitely easier to get.
happy fixin!
so, pick a nice hub and dont worry. 126 might be nicer if you have the option, but 120 is definitely easier to get.
happy fixin!
06-28-04 | 01:43 PM
#7
I couldn't car less.
Joined: Nov 2003
Posts: 4,397
Likes: 0
Bikes: Ritchey P-series prototype, Diamondback, Nishiki Triathelon Pro.
Originally Posted by cyclorat
how far your crank/chainring is away from your frame. unless its obnoxiously bad, you wouldnt have to worry about it unless youre racing or are a snob...
so, pick a nice hub and dont worry. 126 might be nicer if you have the option, but 120 is definitely easier to get.
happy fixin!
so, pick a nice hub and dont worry. 126 might be nicer if you have the option, but 120 is definitely easier to get.
happy fixin!
06-28-04 | 04:56 PM
#8
Vello Kombi, baby
Joined: Dec 2002
Posts: 5,188
Likes: 16
From: Je suis ici
Bikes: 1973 Eisentraut; 1970s Richard Sachs; 1978 Alfio Bonnano; 1967 Peugeot PX10
Get a 120, add a 1mm spacer on either side, and you're at 122mm. That's probably the original spacing; when six speed came in, several manufacturers spaced the rear dropouts out 122 (Peugeot, Motobecane, Trek, maybe more) for a short while.
__________________
"It's always darkest right before it goes completely black"
Waste your money! Buy my comic book!
"It's always darkest right before it goes completely black"
Waste your money! Buy my comic book!
06-28-04 | 09:17 PM
#9
Thread Starter
Gizmo
Joined: May 2004
Posts: 312
Likes: 0
From: Austin, TX
Bikes: custom Moyer track bike, '94 Bianchi track bike, 99ish Bianchi Reparto Corsa 9speed record/chorus, '81ish Koga Miyata FullPro, '84 trek 720 touring bike, mid-80s Montagner slowly being built w/period campy
Ya, it's a frame from some company called ASport, looks like early or mid 70s. Anyone ever heard of it?
Originally Posted by Poguemahone
Get a 120, add a 1mm spacer on either side, and you're at 122mm. That's probably the original spacing; when six speed came in, several manufacturers spaced the rear dropouts out 122 (Peugeot, Motobecane, Trek, maybe more) for a short while.
