|   Dura Ace Freewheel | higbee
Nov 21, 2002 2:43 PM | | The wheel set I want to use for my single speed conversion is a 6spd Dura Ace Freewheel circa 1987. What are my options? My LBS says I need to buy a new singlespeed hub. Are they on crack? Thanks in advance. |
| Crackheads | Straightblock
Nov 21, 2002 4:14 PM | | If the hub is a freewheel type with a thread-on freewheel, a SS freewheel or fixed cog will screw right on. You need to re-space the axle and re-dish the wheel, though.
A lot of LBS employees, and probably some LBS owners, haven't been in the game long and have never worked with old-school components. If they don't know much about freewheel hubs, they may not even have the tool to remove the DA freewheel. You might need to try another shop to find one. The DA freewheel tool won't fit your new single freewheel, so don't buy the freewheel tool if you don't have to. |
| yeah straightblock pretty much sums it up, except... | club
Nov 21, 2002 7:00 PM | | ...the tool for removing DA freewheels has the exact same spline pattern as a shimano cassette lockring tool, only the freewheel tool's splines are longer. try the lockring tool before you buy a freewheel remover, it might work. I have the exact same 6 sp. 126mm spaced DA freewheel hub on my MTB fixed gear. I'm running an ol' piece'o'sheet Treck that's 130mm overlocknut so I just stick the hub in and crank on the q/r to draw in the stays. If your frame is 135mm and your hub is 126mm that's a lot of cranking; if your frame's aluminum it might be a lot of crackin', I dunno, I never owned an aluminum frame. |
| Dura Ace Freehub? | BitterChan
Nov 21, 2002 5:24 PM | | I could be wrong, but I think Dura Ace used a freehub with a 6 speed Uniglide cassette. The smallest 11 tooth cog acts as the lockring so you'll need a chainwhip (or 2) to remove.
I don't see why you would need a new singlespeed hub. |
| Dura Ace Freehub? | higbee
Nov 21, 2002 7:09 PM | | Thanks for the info. I just went and looked at the hub and you are right the smallest cog acts as a lockring and the rest of the cogs slide on as a cassette. I tried a threaded shimano bmx cog and it would not work. Do I use a cassette cog and spacers to get the correct chainline or thread on a freewheel and have the wheel re-dished? Thanks again. |
| Dura Ace Freehub? | BitterChan
Nov 21, 2002 9:39 PM | | Use a cassette cog and spacers, no need to re-dish the wheel. There's probably a 17 or 18 tooth uniglide cog in that cassette you can use if it's not too worn. Save the small cog, you'll need it for the lock ring.
A thread on freewheel uses a different type of hub, unless you use a Surly "fixer" which replaces the freehub body, and has threads that accept freewheels. I don't think it will fit a pre '97 dura ace hub, although I haven't tried.
Hope this helps. |
| Dura Ace Freehub? | GMF
Nov 21, 2002 9:44 PM | | You will want to recycle the cassette you have on that hub. They are not a typical shimano spline pattern for the cogset. As a previous poster mentioned, the dura-ace hub you have is the older uniglide system. A quick check on the one i have i nthe garage verified this.
Fortunately, the only difference between the UG splines and the later HG and IG splines (hyper- and ???- glide) is that all the notches on a UG cassette are the same width, while there is one wide notch/tab on the HG/IG models. A file on that offending notch will give you an unlimited supply of replacements.
So use a bunch of spacers, a loose cog, more spacers and that 11t cog as your lock ring to hold it all together (a standard lockring won't work... don't lose that 11t!)
If you really wanted to get into it, you could get a long enough axle (bolt-on, preferably), add some spacer to the drive side, and get yourself a dishless wheel. This is a bit of work, and if you aren't comfortable doing it yourself, probably not worth the $$$. Good way to learn, though :-)
Have fun, and bring your LBS a crack pipe if they are nice to you.
-GMF |
| using a shimano 600 freewheel hub for SS | ckayakr
Nov 22, 2002 3:11 PM | | I am using my old 600 freewheel hub on my ss-cross bike...I respaced the hub on the axle to align the chain...I'm using both an ACS and shimano freewheel...
I had Gravy Wheels in San Anselmo build the wheel...works great...
In the early days of MTBing we used alot of road parts particularly 600 and dura-ace...they held-up well to the abuse... |
| |
