German City bike with a derailleur and internal hub!Hi Low range
01-14-23, 11:42 AM
#26
Senior Member
Join Date: Feb 2013
Location: Alta California
Posts: 14,244
Mentioned: 415 Post(s)
Tagged: 1 Thread(s)
Quoted: 3801 Post(s)
Liked 3,324 Times
in
2,170 Posts
in this case the wall thickness of the feature cut and that of the nozzle cut appears to be comparable
generally, with bulge-formed heads the feature shores are thin and somewhat indistinct as compared with the nozzle cut ones
Germany did employ a good measure of Agrati bulge-formed heads on ordinary cycles for several decades
here is a closeup of an Agrati "AM" pattern bulge-formed head on a Chiorda built Legnano to illustrate the difference between it and a true three-piece head -
for Asian machines the main producer of bulge-formed heads is the Nikko-Sangyo firm
-----
Last edited by juvela; 01-14-23 at 11:43 AM. Reason: spellin'
01-14-23, 03:41 PM
#27
Full Member
Thread Starter
Join Date: Sep 2018
Location: Campbell River BC
Posts: 461
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 147 Post(s)
Liked 331 Times
in
141 Posts
-----
garryg -
in case you are curious as to date it is possible the Weinmann 605 calipers may carry a marking on the backside of the caliper arms
if present, it will be in the form of a clock face -
if not present it just means cycle manufactured prior to introduction of this marking system
---
thank you so much for sharing this most interesting cycle with the forum
-----
garryg -
in case you are curious as to date it is possible the Weinmann 605 calipers may carry a marking on the backside of the caliper arms
if present, it will be in the form of a clock face -
if not present it just means cycle manufactured prior to introduction of this marking system
---
thank you so much for sharing this most interesting cycle with the forum
-----
Thanks for providing so much insight Juvela
01-15-23, 08:03 AM
#28
Senior Member
Join Date: Feb 2013
Location: Alta California
Posts: 14,244
Mentioned: 415 Post(s)
Tagged: 1 Thread(s)
Quoted: 3801 Post(s)
Liked 3,324 Times
in
2,170 Posts
-----
dating addendum(b) -
other spots to check for marking:
gear block
hub barrels
portion of seat post down inside seat tube
portion of handlebar stem down inside steerer
right end of handlebar beneath handgrip
---
since the derailleur is a Sachs-Huret item it may exhibit the Huret date marking system begun in 1978
this is a marking of four numbers found on the backside of the derailleur's inner parallelogram plate
-
in this system the first two numbers indicate the week of the year and the second two numbers indicate the year
-----
dating addendum(b) -
other spots to check for marking:
gear block
hub barrels
portion of seat post down inside seat tube
portion of handlebar stem down inside steerer
right end of handlebar beneath handgrip
---
since the derailleur is a Sachs-Huret item it may exhibit the Huret date marking system begun in 1978
this is a marking of four numbers found on the backside of the derailleur's inner parallelogram plate
-
in this system the first two numbers indicate the week of the year and the second two numbers indicate the year
-----
01-15-23, 08:39 AM
#29
Senior Member
Looked at a Nexus also at one point. Nice, but I decided just to stay with a convential FD/RD instead.
FWIW: Microshift does make a 8-speed drop bar brake/shift lever for the Alfine-8. I corresponded with their tech support, and they say it also works with the Nexus - just with reverse shift logic compared to the Alfine (highest becomes lowest and vice versa). But I don't think they make a left brake/shift lever compatible with a Campy triple.
Gotta ask, though: why the RD vice a dedicated chain-tensioner?
OK, now back to the regularly-scheduled discussion of the Patria/Sachs Orbit city bike.
01-15-23, 08:43 AM
#30
Bianchi Goddess
Join Date: Apr 2009
Location: Shady Pines Retirement Fort Wayne, In
Posts: 27,843
Bikes: Too many to list here check my signature.
Mentioned: 192 Post(s)
Tagged: 2 Thread(s)
Quoted: 2924 Post(s)
Liked 2,917 Times
in
1,488 Posts
Nice setup. Same concept, but transposed gearing (internal 8/external 3) vice SA's rig.
Looked at a Nexus also at one point. Nice, but I decided just to stay with a convential FD/RD instead.
FWIW: Microshift does make a 8-speed drop bar brake/shift lever for the Alfine-8. I corresponded with their tech support, and they say it also works with the Nexus - just with reverse shift logic compared to the Alfine (highest becomes lowest and vice versa). But I don't think they make a left brake/shift lever compatible with a Campy triple.
Gotta ask, though: why the RD vice a dedicated chain-tensioner?
OK, now back to the regularly-scheduled discussion of the Patria/Sachs Orbit city bike.
Looked at a Nexus also at one point. Nice, but I decided just to stay with a convential FD/RD instead.
FWIW: Microshift does make a 8-speed drop bar brake/shift lever for the Alfine-8. I corresponded with their tech support, and they say it also works with the Nexus - just with reverse shift logic compared to the Alfine (highest becomes lowest and vice versa). But I don't think they make a left brake/shift lever compatible with a Campy triple.
Gotta ask, though: why the RD vice a dedicated chain-tensioner?
OK, now back to the regularly-scheduled discussion of the Patria/Sachs Orbit city bike.
__________________
“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
01-15-23, 08:45 AM
#31
Senior Member
01-17-23, 02:00 PM
#33
Senior Member
Interesting gear set up. I was not even aware of the 2x6 Sachs-Huret Commander with the internal gear chain on the left. But I have been a big fan of the later Sachs/SRAM Spectro 3x7 with a 3 speed internal hub and 7 speed derailleur. Great for inner city traffic with lots of stop and go. I actually prefer this setup over a front derailleur and I still have three bikes with that setup. One German bike and 2 x BikeE recumbent bikes.
