Easy Shimano Uniglide to Hyperglide Conversion
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- เผยแพร่เมื่อ 16 ต.ค. 2024
- This is not an actual freehub conversion but a hack to allow you to fit a hyperglide cassette on a uniglide freehub with only about five minutes of fiddling. If you are going 6 speed to 6 speed or 7 speed to 7 speed it will be even easier but in this video I needed to change my threaded cog because I was doing a 6 speed uniglide to 7 speed hyperglide conversion. This particular freehub is a dura ace also which makes things a little more challenging since a dura ace has a smaller thread size.
Great, worked really well!
I've disassembled the cassette to be more precise and convert an 8 speed to 7. Just take a metal punch tool, that will do the job.
I have a 7 speed (13-21 T) Uniglide on a 1984 Trek. I want to change it to a Hyperglide 12-28 cassette (can't find 12-28 Uniglide). Do I look for a 7 speed cassette then add the lock gear from Uniglide (become 8 speed) or do I look for a 6 speed cassette then use the lock gear from Uniglide (become 7 speed)?
Looks fairly simple, I have a set of 7400 Dura Ace 7 speed uniglide hubs that I picked up for less than $75 and an old Shimano Sante' that I got for $20. Now I have greater cog selection in Hyperglide cassettes as long as I have the threaded cogs. Other people are going to greater time and trouble to take the hubs apart to replace the Uniglide body with the Hyperglide body, but this is easier.
Worked like a charm, thanks!
Glad it was helpful and people are still making good use of these old parts!
You have great videos! Could this work another way around? The rear wheel of my 7 speed uniglide Shimano Sport XL steel bike from 1989 is oval. Local bike shop said they can not do anything about it. I hapend to have set of Shimano WH-RS010 Wheels with with Hyperglide hub? Can i turn it to uniglide to make it work with my old gears? Or would it just be easier to get 7 speed cassette and spacer for modern hub after I've made sure I can make wider casette fits the frame?
Thank you! The uniglide gears should for the hyperglide, except for the final threaded gear. I think it would be easier to just get a hyperglide cassette and spacer since they are pretty easy to come by and then you will have nice fresh gears also. The spacing between the rear dropouts should only be about 4mm different if it is a newer wheel and an old bike. I have an old Cannondale ST400 with the old 126mm spacing that I put a 130mm hub on and it works fine. You just have to spread it a tiny bit when putting the back tire on. Since yours is a steel bike I would definitely not worry about spreading the back triangle a few mm to fit the new wheel
Thank's your advice is appriciated! It might be that modern low crade 7 speed cassette is not even hevier that my old one. It might have easier gearing. I think I need make visit to bike shop to get all the pieces I need one time right. - And perhaps even ask them how much they charge on widening. It would be as shame to ruin that quite nice TANGE 2 frame
You know shimano are some crooked bastards that did the opposite of simplify bike part compatibility. They also probably drove the prices up so high that it's the perfect industry to create counterfeits in. Edit: the dual compatible hub is a bad example of shimano complicating things, but I think it's obvious they took "a sprocket hub" and turned it into different series of bullshit. Anyway I'm just annoyed about having to study to be a bike expert to avoid the wrong purchase