My colleague Jay Jackson just showed me something interesting:
The new Dura-Ace 12-27 cassettes come with a 1 mm spacer that is supposed to be used when they're installed on a 9-speed hub. (The bottom end is slightly recessed into the spider.)
Jay tried installing one of these cassettes without the spacer on a N.O.S. 7-speed 105 hub we have in stock. He found that, by substituting a "compact type" lockring, he was able to successfully mount the 10-speed cassette on the 7-speed hub!
We haven't tried this on an actual bicycle yet, and it looks as if chain clearance may be a wee bit skimpy on both sides, but it looks as if this could be made to work in som applications...so there's hope for folks with non-ferrous 126 mm frames!
Sheldon "Take A Deep Breath" Brown +-----------------------------------------------+ | The difference between truth and fiction: | | Fiction has to make sense. | | --Mark Twain. | +-----------------------------------------------+ Harris Cyclery, West Newton, Massachusetts Phone 617-244-9772 FAX 617-244-1041 http://harriscyclery.com Hard-to-find parts shipped Worldwide http://captainbike.comhttp://sheldonbrown.com
Sheldon Brown <[email hidden]> wrote in message news:<[email hidden]>...
Quoted message said:
My colleague Jay Jackson just showed me something interesting:
The new Dura-Ace 12-27 cassettes come with a 1 mm spacer that is supposed to be used when they're installed on a 9-speed hub. (The bottom end is slightly recessed into the spider.)
Jay tried installing one of these cassettes without the spacer on a N.O.S. 7-speed 105 hub we have in stock. He found that, by substituting a "compact type" lockring, he was able to successfully mount the 10-speed cassette on the 7-speed hub!
We haven't tried this on an actual bicycle yet, and it looks as if chain clearance may be a wee bit skimpy on both sides, but it looks as if this could be made to work in som applications...so there's hope for folks with non-ferrous 126 mm frames!
Well my fingers are crossed!
As an owner of a 979 Vitus this would be very good news.. it would also keep me from wondering about re-spaceing the 753 Bike...
On 28 May 2004 05:25:46 -0700, [email hidden] (ajames54)
Quoted message said:
As an owner of a 979 Vitus this would be very good news.. it would also keep me from wondering about re-spaceing the 753 Bike...
My vitus 980 takes a 9-speed wheel easily; on a good day it drops right in, and on a terrible day I must put a slight amount of pressure on the dropouts. -- Rick Onanian
My vitus 980 takes a 9-speed wheel easily; on a good day it drops right in, and on a terrible day I must put a slight amount of pressure on the dropouts. -- Rick Onanian
My Trek 2000/1500 has no difficulty with a DuraAce 8/9 hub. I lamented its inability to evolve for a couple of years and then decided to try a wheel from another bike and it went in with no real difficulty and has been working well for two years. It started life with a 6 speed freewheel and is now 8 speed Ultegra. Some day it will inherit a faltering 9 speed. Bill Brannon
My vitus 980 takes a 9-speed wheel easily; on a good day it drops right in, and on a terrible day I must put a slight amount of pressure on the dropouts. -- Rick Onanian
My Trek 2000/1500 has no difficulty with a DuraAce 8/9 hub. I lamented its inability to evolve for a couple of years and then decided to try a wheel from another bike and it went in with no real difficulty and has been working well for two years. It started life with a 6 speed freewheel and is now 8 speed Ultegra. Some day it will inherit a faltering 9 speed.
My 1989 Trek 1400 (bonded aluminum), originally equipped with a 105 7-speed hub, has been riding around with an 8-speed hub for almost four years now. I've been riding it often lately. It takes a little outward pressure to snap in the rear wheel, but other than that there have been no problems.
After riding my Vitus 992 for a number of years I measured the rear dropout spacing with the hub removed. It's 128mm. The Vitus has apparently never cared that it's been holding a 130mm hub. It's my primary bike and is now 12 years old.
