$1,000 derailleur system with 1930's technology
#126
Live not by lies.
Join Date: Nov 2020
Posts: 924
Bikes: BigBox bikes.
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 538 Post(s)
Liked 455 Times
in
350 Posts
The only quote I know from the play is “busy giddy minds with foreign quarrels.” but realized how as Solomon said there’s nothing new under the sun. And any younger person that asks me (or their parents) I tell them not to enlist. Don’t be somebody else’s useful idiot.
#127
Senior Member
Join Date: Jun 2008
Location: Louisville, KY
Posts: 13,234
Mentioned: 32 Post(s)
Tagged: 0 Thread(s)
Quoted: 3733 Post(s)
Liked 2,544 Times
in
1,517 Posts
Jan crafts a riding experience in parts and in whole with his products or those from others that he enjoys. And it looks like he gave a lot of thought to the "What if a particular kind of shifting that I like could be made even better?" I think we all do some 'crafting' in one or many ways. You know mine: beauty, composition, ride/comfort, out-of-saddle characteristics. I understand the day dreaming and the splitting hairs as I do learn and benefit from the endeavor, princess-and-the-pea rider that I am. He decided he had the money and wanted to spend the money and time to do this. And it needs marketing, so he's marketing. Good for him. The derailleur and shifter aren't for me, and it's not because of price (though the price is considerable). I think chainstay mounted derailleurs look cool, but like others have said, tire installment and removal is something to adjust to.
#128
www.theheadbadge.com
Join Date: Sep 2005
Location: Southern Florida
Posts: 27,910
Bikes: https://www.theheadbadge.com
Mentioned: 105 Post(s)
Tagged: 0 Thread(s)
Quoted: 2098 Post(s)
Liked 3,327 Times
in
1,688 Posts
For the record, the Dahons that I've serviced with this RD never perform that well. Not because of the derailer itself, but due to the increase in chain angle from cog to front chainring due to the short wheelbase. This always causes unnecessary chatter on either extreme of the cassette, as the chain tends to prematurely pop off the ramped cog teeth in first. Any misalignment in low can also result in the chain pins ever so slightly catching the second-to-smallest cog. Doesn't affect operation, but does create unnecessary noise.
Suffice it to say that a neighbor that bought one spent a month trying to wrap their head around why their new bike's drivetrain clattered so often.
No amount of adjustment can overcome it either. Not saying it's the RD's fault at all, but the reverse parallelogram pivot - in this case - does little other than to give the RD greater ground clearance.
I'd love to see someone adapt one of these to a frame with a proper wheelbase though, would be an interesting study.
-Kurt
Suffice it to say that a neighbor that bought one spent a month trying to wrap their head around why their new bike's drivetrain clattered so often.
No amount of adjustment can overcome it either. Not saying it's the RD's fault at all, but the reverse parallelogram pivot - in this case - does little other than to give the RD greater ground clearance.
I'd love to see someone adapt one of these to a frame with a proper wheelbase though, would be an interesting study.
-Kurt
Last edited by cudak888; 12-14-22 at 08:17 AM.
#129
Senior Member
Join Date: Nov 2010
Posts: 3,368
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 538 Post(s)
Liked 570 Times
in
415 Posts
Well, given how nuts the last several years have been, I'm here for the out-there stuff. This rear derailleur is, to my product designer eye, decidedly prettier than a Paul derailleur (or anything they make), even as it shares an aesthetic ethos with Paul Components (due to method of manufacture). That being said, it does not hide its CNC origins either in form or finish, and I wish it did on one or both accounts (both preferably). It and the shifter give off a strong prototype aesthetic, something that polishing or anodization would readily ease, IMO. Or simply perhaps some well-placed radii. Some of the chosen hardware also hurts the 'presentation,' which is one part "could have used something else" and one part "Rene Herse is not Shimano et al in both component history development and expenditure."
I do like the contrasting brass/copper pieces--those help bring visual interest in critical areas. Additionally, this looks like it could be/was assembled by humans and not a million robots employing special jigs. Repairable, rebuildable, modifiable--qualities that I think many of us appreciate.
Jan crafts a riding experience in parts and in whole with his products or those from others that he enjoys. And it looks like he gave a lot of thought to the "What if a particular kind of shifting that I like could be made even better?" I think we all do some 'crafting' in one or many ways. You know mine: beauty, composition, ride/comfort, out-of-saddle characteristics. I understand the day dreaming and the splitting hairs as I do learn and benefit from the endeavor, princess-and-the-pea rider that I am. He decided he had the money and wanted to spend the money and time to do this. And it needs marketing, so he's marketing. Good for him. The derailleur and shifter aren't for me, and it's not because of price (though the price is considerable). I think chainstay mounted derailleurs look cool, but like others have said, tire installment and removal is something to adjust to.
I do like the contrasting brass/copper pieces--those help bring visual interest in critical areas. Additionally, this looks like it could be/was assembled by humans and not a million robots employing special jigs. Repairable, rebuildable, modifiable--qualities that I think many of us appreciate.
Jan crafts a riding experience in parts and in whole with his products or those from others that he enjoys. And it looks like he gave a lot of thought to the "What if a particular kind of shifting that I like could be made even better?" I think we all do some 'crafting' in one or many ways. You know mine: beauty, composition, ride/comfort, out-of-saddle characteristics. I understand the day dreaming and the splitting hairs as I do learn and benefit from the endeavor, princess-and-the-pea rider that I am. He decided he had the money and wanted to spend the money and time to do this. And it needs marketing, so he's marketing. Good for him. The derailleur and shifter aren't for me, and it's not because of price (though the price is considerable). I think chainstay mounted derailleurs look cool, but like others have said, tire installment and removal is something to adjust to.
I've enjoyed reading through many of the comments. Personally I think it is interesting and I hope it is a successful and rewarding venture. And maybe it will spawn more projects of its type. The advances in CNC manufacturing and 3D printing are making the unheard of actually possible now.
Likes For TugaDude:
#130
Full Member
Join Date: Sep 2017
Location: Oklahoma City
Posts: 201
Bikes: 1985 Roberts SLX, Mercian 531, 1984 Torpado SLX,1981/82 Peugeot PSV-10, 1989 Charlie Roberts full touring, 1970 Charlie Roberts 531 road.
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 61 Post(s)
Liked 93 Times
in
41 Posts
Another picture of a clamp on derailleur https://www.instagram.com/reel/Ci2gI...d=MDJmNzVkMjY=
seems to work fine….
seems to work fine….
Likes For santa fe 2926:
#131
Palmer
Join Date: Mar 2007
Location: Parts Unknown
Posts: 7,805
Bikes: Mike Melton custom, 1982 Stumpjumper, Alex Moulton AM, 2010 Dawes Briercliffe, 2017 Dahon Curl i8, 2021 Motobecane Turino 1x12
Mentioned: 33 Post(s)
Tagged: 0 Thread(s)
Quoted: 1314 Post(s)
Liked 1,181 Times
in
714 Posts
#132
Senior Member
Join Date: Jun 2006
Posts: 18,219
Mentioned: 121 Post(s)
Tagged: 0 Thread(s)
Quoted: 2696 Post(s)
Liked 1,746 Times
in
1,283 Posts
I've run across two bikes with chainstay mounted derailleurs. Here's my Peugeot PH-60:

Simplex derailleur with single cable and spring return
This is a different design than Nivex, but all of that chain wraparound makes it a pain in the rear to take the rear wheel on and off.
And if you think that was different, here's a SunTour S-1 derailleur bit brazed onto a chainstay for @rhm

Lookit that DIY jig I made! It's actually pretty accurate, I used my flat table to check parallelism and met the spec'ed offset from the dropout.
SunTour realized that wheel removal would be an issue, so they included this little piece to hang your chain on when removing the rear wheel:

Bolts onto the old derailleur hanger. Yes, I modified the position this, but that's another story.
Price is high due to very low volume. If Jan could sell 10's of thousands of these it would be a quarter of less of the cost.
I think the biggest issue is needing to modify a frame to bolt it on. If you dig a bit deeper you'll find a $139 jig to accurately place the attachment bit. I couldn't find any spec's for the location to make my own, so one is stuck with having to purchase the jig.
Just noticed that the pullies appear to be 3D printed - if you look closely you'll see what looks like "sedimentary" layers, typical for the layer by layer 3D printing process.
If Jan had enough "mad money" for this passion project, it could be worth it as a marketing ploy. It's his business. And right now his initial run appears to be sold out. I have no idea how many he sold, or what his break even point is.

Simplex derailleur with single cable and spring return
This is a different design than Nivex, but all of that chain wraparound makes it a pain in the rear to take the rear wheel on and off.
And if you think that was different, here's a SunTour S-1 derailleur bit brazed onto a chainstay for @rhm

Lookit that DIY jig I made! It's actually pretty accurate, I used my flat table to check parallelism and met the spec'ed offset from the dropout.
SunTour realized that wheel removal would be an issue, so they included this little piece to hang your chain on when removing the rear wheel:

Bolts onto the old derailleur hanger. Yes, I modified the position this, but that's another story.
Price is high due to very low volume. If Jan could sell 10's of thousands of these it would be a quarter of less of the cost.
I think the biggest issue is needing to modify a frame to bolt it on. If you dig a bit deeper you'll find a $139 jig to accurately place the attachment bit. I couldn't find any spec's for the location to make my own, so one is stuck with having to purchase the jig.
Just noticed that the pullies appear to be 3D printed - if you look closely you'll see what looks like "sedimentary" layers, typical for the layer by layer 3D printing process.
If Jan had enough "mad money" for this passion project, it could be worth it as a marketing ploy. It's his business. And right now his initial run appears to be sold out. I have no idea how many he sold, or what his break even point is.
once one has the parts in hand, there will be work to get them into position
#133
Palmer
Join Date: Mar 2007
Location: Parts Unknown
Posts: 7,805
Bikes: Mike Melton custom, 1982 Stumpjumper, Alex Moulton AM, 2010 Dawes Briercliffe, 2017 Dahon Curl i8, 2021 Motobecane Turino 1x12
Mentioned: 33 Post(s)
Tagged: 0 Thread(s)
Quoted: 1314 Post(s)
Liked 1,181 Times
in
714 Posts
An older German cyclist reminisced about sport cycling in the 1930s. The club all used Fichtel&Sachs hub gears except one sporting blade who had an Italian derailleur set. He said they good-naturedly refused to shake hands with him. "Nein! Schwarze Finger!"
#134
Senior Member
Join Date: Jan 2006
Location: Berwyn PA
Posts: 6,353
Bikes: I hate bikes!
Mentioned: 38 Post(s)
Tagged: 0 Thread(s)
Quoted: 395 Post(s)
Liked 565 Times
in
187 Posts
Excerpt from a conversation on the same topic from google groups i-bob list:
Bill,
You owe somebody $ 5. It's not a typo... For now, we don't plan to offer 9-speed.The difference is indeed just the indexing ring inside the shift lever. Why not offer every possible version? The issue is the R&D. The specs of cassettes aren’t published, so we have to measure half a dozen to figure out the _real_ tolerances. Then we have to design the indexing ring. Then test it (which means setting up a bike with those parts). In fact, the indexing is subtly different for Campy and Shimano. That's why we recommend a Shimano cassette for the current 11-speed. Campy and SRAM will work in a pinch, but it's not ideal.
As an aside, the indexing ring isn’t notched in our case, as that would give you too much indexing. So we use a different way to create the indexing. In theory, you could rebuild an 11-speed shift lever into an 8-speed, or even friction. In practice, disassembly is not trivial—there are many tiny parts inside. Also, all levers use matched parts—meaning we measure all parts from a batch and combine those that work best together to get the tightest tolerances and best shift feel. It's sort of like blueprinting engines for racecars.
Agree with the other comments here. This project was never going to make commercial sense. It was a challenge for our engineering team. It's a product I want to ride. It's something to share with a few others—the first (admittedly very small) production run already sold out—but it's not going to set the world on fire. If it gets other component makers reassess some of their assumptions, all the better. (Who would have thought that wide tires would catch on in such a big way?)
Jan Heine
Rene Herse Cycles
Seattle, WA, USA
Jan Heine
Bill,
You owe somebody $ 5. It's not a typo... For now, we don't plan to offer 9-speed.The difference is indeed just the indexing ring inside the shift lever. Why not offer every possible version? The issue is the R&D. The specs of cassettes aren’t published, so we have to measure half a dozen to figure out the _real_ tolerances. Then we have to design the indexing ring. Then test it (which means setting up a bike with those parts). In fact, the indexing is subtly different for Campy and Shimano. That's why we recommend a Shimano cassette for the current 11-speed. Campy and SRAM will work in a pinch, but it's not ideal.
As an aside, the indexing ring isn’t notched in our case, as that would give you too much indexing. So we use a different way to create the indexing. In theory, you could rebuild an 11-speed shift lever into an 8-speed, or even friction. In practice, disassembly is not trivial—there are many tiny parts inside. Also, all levers use matched parts—meaning we measure all parts from a batch and combine those that work best together to get the tightest tolerances and best shift feel. It's sort of like blueprinting engines for racecars.
Agree with the other comments here. This project was never going to make commercial sense. It was a challenge for our engineering team. It's a product I want to ride. It's something to share with a few others—the first (admittedly very small) production run already sold out—but it's not going to set the world on fire. If it gets other component makers reassess some of their assumptions, all the better. (Who would have thought that wide tires would catch on in such a big way?)
Jan Heine
Rene Herse Cycles
Seattle, WA, USA
Last edited by unterhausen; 12-14-22 at 01:57 PM. Reason: remove email address
Likes For fender1:
#135
www.theheadbadge.com
Join Date: Sep 2005
Location: Southern Florida
Posts: 27,910
Bikes: https://www.theheadbadge.com
Mentioned: 105 Post(s)
Tagged: 0 Thread(s)
Quoted: 2098 Post(s)
Liked 3,327 Times
in
1,688 Posts
^
Nothing really wrong with that other than the bet smugness. It costs a lot to tool up for this stuff, arguably even more than it costs to CNC.
Speaking of which, take a look at the process of getting plastic castings made for the Linus Tech Tips screwdriver ( 8:03 - 9:24 ), arguably the same process that would be required for just one of the Rene Herse pulley wheels if Jan had gone with injection molding:
That explains the 3D-printed approach. Not ideal, but it works well enough. The smoother forms of resin plastic (SLS) printing would have been too brittle.
-Kurt
Nothing really wrong with that other than the bet smugness. It costs a lot to tool up for this stuff, arguably even more than it costs to CNC.
Speaking of which, take a look at the process of getting plastic castings made for the Linus Tech Tips screwdriver ( 8:03 - 9:24 ), arguably the same process that would be required for just one of the Rene Herse pulley wheels if Jan had gone with injection molding:
That explains the 3D-printed approach. Not ideal, but it works well enough. The smoother forms of resin plastic (SLS) printing would have been too brittle.
-Kurt
#136
Bike Butcher of Portland
Thread Starter
Join Date: Jul 2014
Location: Portland, OR
Posts: 11,072
Bikes: It's complicated.
Mentioned: 1229 Post(s)
Tagged: 0 Thread(s)
Quoted: 4341 Post(s)
Liked 4,466 Times
in
1,891 Posts
Also note that Jan sold a limited edition 80th Anniversary Rene Herse complete bike for around $14,000. Website shows they sold out. These high end products are a niche market with probably little to no profit, but if you consider it as advertising for his brand, creating a buzz, it's probably worth it.
This thread is up 136 posts now, so it's definitely created some buzz here.
This thread is up 136 posts now, so it's definitely created some buzz here.
__________________
If someone tells you that you have enough bicycles and you don't need any more, stop talking to them. You don't need that kind of negativity in your life.
If someone tells you that you have enough bicycles and you don't need any more, stop talking to them. You don't need that kind of negativity in your life.
Likes For gugie:
#138
Palmer
Join Date: Mar 2007
Location: Parts Unknown
Posts: 7,805
Bikes: Mike Melton custom, 1982 Stumpjumper, Alex Moulton AM, 2010 Dawes Briercliffe, 2017 Dahon Curl i8, 2021 Motobecane Turino 1x12
Mentioned: 33 Post(s)
Tagged: 0 Thread(s)
Quoted: 1314 Post(s)
Liked 1,181 Times
in
714 Posts
I dunno, does Mr. Heine/René Herse Cycles sell something like pine tar soap or hemp twine, so we could throw him a bone just for the entertainment? 
(Hmm. Checks website). Oooo! How about a Nivex® brand derailleur cable?

(Hmm. Checks website). Oooo! How about a Nivex® brand derailleur cable?
Last edited by tcs; 12-14-22 at 02:25 PM.
#140
Senior Member
Join Date: Jun 2006
Posts: 18,219
Mentioned: 121 Post(s)
Tagged: 0 Thread(s)
Quoted: 2696 Post(s)
Liked 1,746 Times
in
1,283 Posts
Excerpt from a conversation on the same topic from google groups i-bob list:
Bill,
You owe somebody $ 5. It's not a typo... For now, we don't plan to offer 9-speed.The difference is indeed just the indexing ring inside the shift lever. Why not offer every possible version? The issue is the R&D. The specs of cassettes aren’t published, so we have to measure half a dozen to figure out the _real_ tolerances. Then we have to design the indexing ring. Then test it (which means setting up a bike with those parts). In fact, the indexing is subtly different for Campy and Shimano. That's why we recommend a Shimano cassette for the current 11-speed. Campy and SRAM will work in a pinch, but it's not ideal.
As an aside, the indexing ring isn’t notched in our case, as that would give you too much indexing. So we use a different way to create the indexing. In theory, you could rebuild an 11-speed shift lever into an 8-speed, or even friction. In practice, disassembly is not trivial—there are many tiny parts inside. Also, all levers use matched parts—meaning we measure all parts from a batch and combine those that work best together to get the tightest tolerances and best shift feel. It's sort of like blueprinting engines for racecars.
Agree with the other comments here. This project was never going to make commercial sense. It was a challenge for our engineering team. It's a product I want to ride. It's something to share with a few others—the first (admittedly very small) production run already sold out—but it's not going to set the world on fire. If it gets other component makers reassess some of their assumptions, all the better. (Who would have thought that wide tires would catch on in such a big way?)
Jan Heine
Rene Herse Cycles
Seattle, WA, USA
Jan Heine
Bill,
You owe somebody $ 5. It's not a typo... For now, we don't plan to offer 9-speed.The difference is indeed just the indexing ring inside the shift lever. Why not offer every possible version? The issue is the R&D. The specs of cassettes aren’t published, so we have to measure half a dozen to figure out the _real_ tolerances. Then we have to design the indexing ring. Then test it (which means setting up a bike with those parts). In fact, the indexing is subtly different for Campy and Shimano. That's why we recommend a Shimano cassette for the current 11-speed. Campy and SRAM will work in a pinch, but it's not ideal.
As an aside, the indexing ring isn’t notched in our case, as that would give you too much indexing. So we use a different way to create the indexing. In theory, you could rebuild an 11-speed shift lever into an 8-speed, or even friction. In practice, disassembly is not trivial—there are many tiny parts inside. Also, all levers use matched parts—meaning we measure all parts from a batch and combine those that work best together to get the tightest tolerances and best shift feel. It's sort of like blueprinting engines for racecars.
Agree with the other comments here. This project was never going to make commercial sense. It was a challenge for our engineering team. It's a product I want to ride. It's something to share with a few others—the first (admittedly very small) production run already sold out—but it's not going to set the world on fire. If it gets other component makers reassess some of their assumptions, all the better. (Who would have thought that wide tires would catch on in such a big way?)
Jan Heine
Rene Herse Cycles
Seattle, WA, USA
#141
seńor miembro
Join Date: Dec 2018
Location: Pac NW
Posts: 6,977
Bikes: Old school lightweights
Mentioned: 79 Post(s)
Tagged: 0 Thread(s)
Quoted: 2980 Post(s)
Liked 4,304 Times
in
2,284 Posts
This part of his writing resonates with me:
When I cook, using a great knife is more fun than a KitchenAid. When I ride my bike, I pull the lever and feel the chain mesh with the new cog as a result of my hand movement. It doesn’t make me faster, but it makes riding more fun.
Like driving a car with manual transmission. It’s about being involved in the operation of my bike. There’s a joy in feeling the gears engage, because I (not a computer) timed the shift perfectly
Modern derailleurs were designed for different criteria than what’s important to me. I like a ‘manual’ bike where it’s me and not a servo motor who’s moving the chain.
When I cook, using a great knife is more fun than a KitchenAid. When I ride my bike, I pull the lever and feel the chain mesh with the new cog as a result of my hand movement. It doesn’t make me faster, but it makes riding more fun.
Like driving a car with manual transmission. It’s about being involved in the operation of my bike. There’s a joy in feeling the gears engage, because I (not a computer) timed the shift perfectly
Modern derailleurs were designed for different criteria than what’s important to me. I like a ‘manual’ bike where it’s me and not a servo motor who’s moving the chain.
Last edited by SurferRosa; 12-14-22 at 03:43 PM.
Likes For SurferRosa:
#142
seńor miembro
Join Date: Dec 2018
Location: Pac NW
Posts: 6,977
Bikes: Old school lightweights
Mentioned: 79 Post(s)
Tagged: 0 Thread(s)
Quoted: 2980 Post(s)
Liked 4,304 Times
in
2,284 Posts
Jan mentions these lower chain stay derailleurs as fitting the chain around three sides of the rear cluster. I wonder if that adds benefits, like durability. I would assume they skip less often under load, making them safer when you're climbing out of the saddle.
Likes For SurferRosa:
Likes For tcs:
Likes For P!N20:
#145
www.theheadbadge.com
Join Date: Sep 2005
Location: Southern Florida
Posts: 27,910
Bikes: https://www.theheadbadge.com
Mentioned: 105 Post(s)
Tagged: 0 Thread(s)
Quoted: 2098 Post(s)
Liked 3,327 Times
in
1,688 Posts
Likes For cudak888:
#146
This wrench fits...

Likes For BoltBreaker:
Likes For BertoBerg:
#150
Senior Member
Join Date: Jun 2006
Posts: 18,219
Mentioned: 121 Post(s)
Tagged: 0 Thread(s)
Quoted: 2696 Post(s)
Liked 1,746 Times
in
1,283 Posts
Likes For repechage: