Classic & Vintage - want to keep your original hub here is a 9 speed FREEWHEEL

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sunstealth
07-29-10, 09:06 PM
so here we go 9 speed freewheels exist , made by sunrace , intended for use on E-bikes but they have the shimano thread type so they work on normal hubs!
saddly they are only 13 tooth small gear, no 12 or 11 :(
http://www.ebikestop.com/sunrace_9spd_freewheel_13_32-FW2131.php
khatfull
07-29-10, 09:09 PM
But you'd probably need 130mm hubs to use it right (for the width)? What 130mm hubs have freewheel threads?
canopus
07-29-10, 09:13 PM
Almost any late era 7-8 speed hubs. I have a couple of Sachs New Winner hub sets that are 130 spaced.
miamijim
07-29-10, 09:19 PM
What am I going to do with 24, 28 and 32t cogs?
ColonelJLloyd
07-29-10, 09:53 PM
Not much, I suspect. Tampa isn't especially hilly is it?
cudak888
07-29-10, 10:26 PM
Anyone want to buy some replacement axles? :innocent:
-Kurt "Corner the Market" K.
noglider
07-29-10, 10:32 PM
What am I going to do with 24, 28 and 32t cogs?
I guess you can hope they start producing a freewheel that's 13-14-15-16-17-18-19-20-21. It's a modern corncob.
But seriously, folks, this is a bizarre development. I don't see the point.
sciencemonster
07-30-10, 09:45 AM
I guess you can hope they start producing a freewheel that's 13-14-15-16-17-18-19-20-21. It's a modern corncob.
But seriously, folks, this is a bizarre development. I don't see the point.
Bragging rights - something to use as a selling point? Wonder how they do indexing on that? It'd have to be a made to order shifter, since nothing off the shelf goes to nine speeds...unless it's spaced like a 9 speed freehub, rather than a 7 speed freewheel.
I built corncob freewheels out of a couple cheap Shimanos and some loose sprockets. It was easy, and fits my riding style exactly. 13-14-15-16-17-18-28 for my ergo compact and 13-15-16-17-18-34 for my 39/53 DT shifters. Had to use the dremel for the 7 speed.
Zaphod Beeblebrox
07-30-10, 09:54 AM
cudak's right, you'll be bending axles left and right unless you're a featherweight
honestly though I could dig a 13-14-15-16-18-20-22-26-34...and just a 50 up front. Maybe its time for me to start fiddling with cogs.
whats out there as far as like a 7 speed freewheel where you can swap all the cogs around?
beech333
07-30-10, 09:55 AM
Bragging rights - something to use as a selling point? Wonder how they do indexing on that? It'd have to be a made to order shifter, since nothing off the shelf goes to nine speeds...unless it's spaced like a 9 speed freehub, rather than a 7 speed freewheel.
I don't understand. Aren't these built to use on old bikes, where the user wants to keep it as original as possible but still have brifters? I know that the F/RD would have to be replaced, but still, it is an interesting option. At that price, I am thinking about giving them a try.
Edit:
Anyone want to buy some replacement axles? :innocent:
-Kurt "Corner the Market" K.
Didn't think of this. Good point.
Zaphod Beeblebrox
07-30-10, 09:58 AM
you could do it with a vintage RD and friction shifting if you wanted although I'd bet the shifts would be really close together.
sciencemonster
07-30-10, 09:59 AM
I don't understand. Aren't these built to use on old bikes, where the user wants to keep it as original as possible but still have brifters?
New cheapo bikes still use freewheels, from what I understand.
canopus
07-30-10, 10:00 AM
cudak's right, you'll be bending axles left and right unless you're a featherweight.
I rode my Sachs for a year and I am not featherweight. Axle still straight even with some railroad jumps. Now I don't think I will be taking it out on tour but they aren't all that fragile if you have good quality under you.
noglider
07-30-10, 11:04 AM
New cheapo bikes still use freewheels, from what I understand.
Yes, but they are 7-speed, at most.
Single chainwheel bikes aren't the panacea they look like on paper. Chainline gets to be a problem. The front derailleur, even when you don't use it, serves to keep the chain on the chainwheel. Take it off, and you have more mishaps.
Amani576
07-30-10, 11:09 AM
You could put it on a 130mm Phil Wood with freewheel threads and it wouldn't break.
-Gene-
nlerner
07-30-10, 12:30 PM
I have an 8-speed freewheel in the parts bin that I'm not using for fear of breaking an axle. I'm not a heavyweight, but it just seems like a bad idea, and that's why cassette hubs were invented!
Neal
Grand Bois
07-30-10, 01:34 PM
so here we go 9 speed freewheels exist , made by sunrace , intended for use on E-bikes but they have the shimano thread type so they work on normal hubs!
saddly they are only 13 tooth small gear, no 12 or 11 :(
http://www.ebikestop.com/sunrace_9spd_freewheel_13_32-FW2131.php
What's an E-bike?
noglider
07-30-10, 02:37 PM
You could put it on a 130mm Phil Wood with freewheel threads and it wouldn't break.
-Gene-
Yes, but why?
khatfull
07-30-10, 02:43 PM
Ok, I'll play dumb, why would an increase to 9-speed cause an increase in broken axles?
GrayJay
07-30-10, 02:59 PM
Ok, I'll play dumb, why would an increase to 9-speed cause an increase in broken axles?
Same as an 8-speed FW, they both require a 130MM spaced axel, resulting in a longer overhang from the bearings to the frame, more likely to bend/break the axel than if 7 speed at 126mm. I had way to many nice 7-speed hub wheelsets to just throw them all out when I finally converted my race bike to 8-speed in the early 90's. I set a few of my race wheelsets up with 8-speed freewheels and had no problems when I used them just for road racing while using casette hubs on my daily training wheels that were subject to more abuse and miles. One adaptation I also came up with was to put a 30mm OD sealed bearing toward the frame end of the axel (on a "cone" from a sealed bearing hub). THe OD of the bearing fit right inside the outer small cog of the freewheel, giving the axel some extra support.
brockd15
07-30-10, 03:03 PM
At some point I'd like to upgrade my Voyageur to 9 speed but keep the 27" wheels. It's not easy to find a 9 speed compatible, 40 hole hub without going real expensive (phil wood, white industries, etc.) or using a tandem hub...which isn't much cheaper. This at least provides another option, and at a fraction of the price (~$20 vs ~$150) of getting a new hub.
GrayJay
07-30-10, 03:47 PM
At some point I'd like to upgrade my Voyageur to 9 speed but keep the 27" wheels. It's not easy to find a 9 speed compatible, 40 hole hub without going real expensive (phil wood, white industries, etc.) or using a tandem hub...which isn't much cheaper. This at least provides another option, and at a fraction of the price (~$20 vs ~$150) of getting a new hub.
If you need the strength of 40 spoke wheels, a 130mm spaced conventional hub will likely be problematic in regard to bending axels. The increased dish of the wheel/spokes will make for a weaker wheel too.
brockd15
07-30-10, 04:20 PM
If you need the strength of 40 spoke wheels, a 130mm spaced conventional hub will likely be problematic in regard to bending axels. The increased dish of the wheel/spokes will make for a weaker wheel too.
40 spokes is overkill for me personally, but I like the idea of keeping it 36/40 on 27" rims.
rat fink
07-30-10, 04:30 PM
Same as an 8-speed FW, they both require a 130MM spaced axel, resulting in a longer overhang from the bearings to the frame, more likely to bend/break the axel than if 7 speed at 126mm. I had way to many nice 7-speed hub wheelsets to just throw them all out when I finally converted my race bike to 8-speed in the early 90's. I set a few of my race wheelsets up with 8-speed freewheels and had no problems when I used them just for road racing while using casette hubs on my daily training wheels that were subject to more abuse and miles. One adaptation I also came up with was to put a 30mm OD sealed bearing toward the frame end of the axel (on a "cone" from a sealed bearing hub). THe OD of the bearing fit right inside the outer small cog of the freewheel, giving the axel some extra support.
That's really clever! I will have to keep that one in mind.
roccobike
07-30-10, 05:28 PM
BTW, If you have to go to 130mm, I'm betting you'll have to redish the rear wheel because it won't be centered. I know when I changed my 7 speed freehub to 8/9/10 on the C'dale, I had to re-center the wheel. I'm guessing the same is true for a freewheel conversion.
noglider
07-31-10, 12:34 AM
Yes.
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