1x5 drive train using outer TA chainring?
#1
Senior Member
Thread Starter
Join Date: Jun 2018
Posts: 733
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 213 Post(s)
Likes: 0
Liked 6 Times
in
5 Posts
1x5 drive train using outer TA chainring?
I bought this TA chainring with the intention of attaching it to a internally geared hub set up. I'm currently building up a winter beater bike out of a supercourse frame I've got. The paint is bad and I made it worse touching up some rust spots. I'll be riding it to a college campus that's notorious for bike theft(psu) so I dont want it to be pretty. For this reason I also dont want to use my $250 IGH hub in the build. Instead I'm opting to use a standard 5 speed rear freewheel with a suntour VX RD with the TA chainring.
A worker at my LBS was looking over the chainring as I told him my plan for a 1x5 and he said I may bend the chainring. He suggested attaching another gear to it even if I dont intend to use it, as doing so would reinforce the outer ring. I've seen quite a few of you lovley people using the TA chainring+crank and even some using it on various 1x etc. options so I wanted to ask your thoughts.
I was planning on putting a FD on and just never touching the position of the DT shifter on the lefthand side to keep the chain in place on the front chainring. Would this be enough to fight the bends? Is it a concern at all? Should I take his advice and attach another ring to it?
A worker at my LBS was looking over the chainring as I told him my plan for a 1x5 and he said I may bend the chainring. He suggested attaching another gear to it even if I dont intend to use it, as doing so would reinforce the outer ring. I've seen quite a few of you lovley people using the TA chainring+crank and even some using it on various 1x etc. options so I wanted to ask your thoughts.
I was planning on putting a FD on and just never touching the position of the DT shifter on the lefthand side to keep the chain in place on the front chainring. Would this be enough to fight the bends? Is it a concern at all? Should I take his advice and attach another ring to it?
#2
Senior Member
Join Date: Aug 2006
Location: Portland OR
Posts: 7,639
Bikes: 61 Bianchi Specialissima 71 Peugeot G50 7? P'geot PX10 74 Raleigh GranSport 75 P'geot UO8 78? Raleigh Team Pro 82 P'geot PSV 86 P'geot PX 91 Bridgestone MB0 92 B'stone XO1 97 Rans VRex 92 Cannondale R1000 94 B'stone MB5 97 Vitus 997
Mentioned: 146 Post(s)
Tagged: 0 Thread(s)
Quoted: 392 Post(s)
Likes: 0
Liked 49 Times
in
31 Posts
I don't think you'd bend the chainring unless you have the legs of a gorilla and a really awful chainline, and maybe not even then. Anyway it wouldn't be hard to bend it back.
#3
Overdoing projects
Join Date: Oct 2011
Location: Rotterdam, former republic of the Netherlands
Posts: 2,397
Bikes: Batavus Randonneur GL, Gazelle Orange Excellent, Gazelle Super Licht, Gazelle Grand Tourist, Gazelle Lausanne, Gazelle Tandem, Koga-Miyata SilverAce, Koga-Miyata WorldTraveller
Mentioned: 58 Post(s)
Tagged: 0 Thread(s)
Quoted: 784 Post(s)
Liked 1,237 Times
in
686 Posts
1x6 drive train when I didn't have a wide enough bottom bracket.
52T, they are more flexy than modern chainraings but that is only an issue on track conditions with 68T rings or 52T sprinters.
Worst case scenario you break it and buy a VO singlespeed ring
Last edited by JaccoW; 11-16-18 at 02:43 AM.
#4
Senior Member
Join Date: Feb 2002
Posts: 1,177
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 117 Post(s)
Liked 71 Times
in
51 Posts
I"ll join the choir here--that used to be very commonly done for time trial, criterium, and commuting bikes when TA cranks were more common. You won't have any problem as long as the chain line is right. You for sure won't warp or bend the chainring!
#5
Old fart
Join Date: Nov 2004
Location: Appleton WI
Posts: 24,777
Bikes: Several, mostly not name brands.
Mentioned: 153 Post(s)
Tagged: 0 Thread(s)
Quoted: 3582 Post(s)
Liked 3,395 Times
in
1,929 Posts
I wouldn't anticipate any problems. I've been running a single ring on my fixed gear bike and it has been fine.
#6
Senior Member
Have used TA singles on a lot of bikes. Never a problem. Not necessary to have the FD as a chainguide.
People take bikes to extremes. I know of one case where there was a real, not imaginary issue with the setup we’re talking about. Rider was using a fixed wheel and liked to ride mountains. 42x16 up mountains is a bit severe but tastes differ. Using a chainring with extra unused holes for mounting another chainring the 42 broke. The unused holes acted like perforations. Failure occurred after just a lot of mountains and when the ring was about to be retired anyway. Finding rings meant to be used as singles solved that problem completely, many more miles and mountains and no more failures.
People take bikes to extremes. I know of one case where there was a real, not imaginary issue with the setup we’re talking about. Rider was using a fixed wheel and liked to ride mountains. 42x16 up mountains is a bit severe but tastes differ. Using a chainring with extra unused holes for mounting another chainring the 42 broke. The unused holes acted like perforations. Failure occurred after just a lot of mountains and when the ring was about to be retired anyway. Finding rings meant to be used as singles solved that problem completely, many more miles and mountains and no more failures.
#7
verktyg
Join Date: Jul 2006
Location: SF Bay Area
Posts: 4,030
Bikes: Current favorites: 1988 Peugeot Birraritz, 1984 Gitane Super Corsa, 1980s DeRosa, 1981 Bianchi Campione Del Mondo, 1992 Paramount OS, 1988 Colnago Technos, 1985 RalieghUSA SBDU Team Pro
Mentioned: 207 Post(s)
Tagged: 0 Thread(s)
Quoted: 1036 Post(s)
Liked 1,237 Times
in
653 Posts
Bending TA chainrings
I built my first rough stuff bike in 1976. Lugged Vitus 172 frame, 700c clincher wheels for gravel and cyclocross sewups for softer dirt trails. Brazed the frame together Saturday afternoon and rode it Sunday. The red primer was still tacky.
Started off with a very light weight steel Zeus cottered crankset with a 46T alloy chain ring, a 14-34T Shimano FW and a Suntour V-GT RD.
I bent one of the crank arms horsing the bike over an obstacle. Changed to Stronglight cottered steel cranks and did the same thing the following week.
TA Cyclotouriste cranks didn't inspire a lot of confidence but I put one on with a 46T large chainring and a 26T small one. I foot shifted off the 46 when I needed to go small and manually changed to the "big one". Rode that combo for years. I ovalized at least 3 of the 26T chainrings but never had a problem with the 46T. Rarely had the chain jump off the rings from bouncing off road.
The FD would be a good idea if you're concerned about the chain coming off.
That bike got stolen and I replaced it with frame that I built in 1992. It has the same geometry as the original bike but with a lugged butted heavy duty Reynolds 531 frame and nicer components and an FD.
The last time I ovalized the 26T I switched to a Shimaono Deore XT 48-38-28T triple.
I wouldn't worry about bending a TA chainring unless you're an animal. They've been in use for over 70 years!
verktyg
__________________
Don't believe everything you think! History is written by those who weren't there....
Chas. ;-)
Don't believe everything you think! History is written by those who weren't there....
Chas. ;-)
#8
Banned
Join Date: Aug 2013
Posts: 6,480
Mentioned: 93 Post(s)
Tagged: 0 Thread(s)
Quoted: 1361 Post(s)
Likes: 0
Liked 423 Times
in
282 Posts
No issue or concerns of breakage.
This on a steel cottered crank. I've played with various cogs on this bike, used both for flats and club riding to area where climbing becomes a serious dig in grind. Though if you decide a derailleur vs. IGH, highly suggest a front chain keeper.
This on a steel cottered crank. I've played with various cogs on this bike, used both for flats and club riding to area where climbing becomes a serious dig in grind. Though if you decide a derailleur vs. IGH, highly suggest a front chain keeper.
#9
Phyllo-buster
Join Date: Jan 2010
Location: Nova Scotia
Posts: 8,844
Bikes: roadsters, club bikes, fixed and classic
Mentioned: 133 Post(s)
Tagged: 0 Thread(s)
Quoted: 2296 Post(s)
Liked 2,046 Times
in
1,253 Posts
Ran a 48 tooth for years with an IGH. Will use it again when knee recovers.
#10
Senior Member
Thread Starter
Join Date: Jun 2018
Posts: 733
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 213 Post(s)
Likes: 0
Liked 6 Times
in
5 Posts
Thanks all pretty much what I thought.
i was surprised when he said that but these guys, though very helpful and wonderful, are constantly trying to get me to *upgrade* away from my *outdated* gear.
As a note I will be using this with a rear freewheel with 5 gears not the IGH. He had no concerns with the IGH plan but raised his eyebrow at the 5 speed combo. I will likley us the FD just to keep the chain in check but it sounds like the TA wont need any extra support other than that.
i was surprised when he said that but these guys, though very helpful and wonderful, are constantly trying to get me to *upgrade* away from my *outdated* gear.
As a note I will be using this with a rear freewheel with 5 gears not the IGH. He had no concerns with the IGH plan but raised his eyebrow at the 5 speed combo. I will likley us the FD just to keep the chain in check but it sounds like the TA wont need any extra support other than that.
#11
aka Tom Reingold
Join Date: Jan 2009
Location: New York, NY, and High Falls, NY, USA
Posts: 40,498
Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem
Mentioned: 511 Post(s)
Tagged: 0 Thread(s)
Quoted: 7345 Post(s)
Liked 2,452 Times
in
1,430 Posts
You need to stop getting advice from those folks.
__________________
Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog
“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
Please email me rather than PM'ing me. Thanks.
Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog
“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
Please email me rather than PM'ing me. Thanks.
#12
Senior Member
Thread Starter
Join Date: Jun 2018
Posts: 733
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 213 Post(s)
Likes: 0
Liked 6 Times
in
5 Posts
nah they are a lovley bunch. They appriciate old parts that are good quality or even just an old part that works still. It's just when something breaks they dont get why I wouldnt replace it with something newer.
in a town full of bike snobs these guys were understanding and didnt treat me like a fool for not knowing everything about my bike while I was(am) learning.
They can go ahead and upsell me every now and then. I think they've earned it.
in a town full of bike snobs these guys were understanding and didnt treat me like a fool for not knowing everything about my bike while I was(am) learning.
They can go ahead and upsell me every now and then. I think they've earned it.
#13
aka Tom Reingold
Join Date: Jan 2009
Location: New York, NY, and High Falls, NY, USA
Posts: 40,498
Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem
Mentioned: 511 Post(s)
Tagged: 0 Thread(s)
Quoted: 7345 Post(s)
Liked 2,452 Times
in
1,430 Posts
Still, treat their advice with skepticism. They distrust old stuff because they don't know, as well as their interest in making sales. They may be nice, but this kind of advice isn't helpful.
__________________
Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog
“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
Please email me rather than PM'ing me. Thanks.
Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog
“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
Please email me rather than PM'ing me. Thanks.
#14
Banned
No 2nd chainring , fill bolt holes with bolts and washers then.. if the empty holes worry you..
#15
Senior Member
Join Date: Oct 2014
Location: Reno nevada
Posts: 780
Bikes: a few that I can't recall
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 342 Post(s)
Liked 299 Times
in
146 Posts
There is absolutely nothing wrong with a young bike mechanic, being concerned about a problem with your bike. And don't get me wrong, rotational stress on an unhardened aluminum structure that has holes drilled in it IS a problem.
So does that mean we can chastize and scoff at the young man all we want, because he overestimated the amount of watts we can generate?
We should instead be thankful for two things:
He thinks we are strong.
We didn't have some grumpy old man making fun of us on the internet when we were young bike mechanics.
Peace.
So does that mean we can chastize and scoff at the young man all we want, because he overestimated the amount of watts we can generate?
We should instead be thankful for two things:
He thinks we are strong.
We didn't have some grumpy old man making fun of us on the internet when we were young bike mechanics.
Peace.
#16
verktyg
Join Date: Jul 2006
Location: SF Bay Area
Posts: 4,030
Bikes: Current favorites: 1988 Peugeot Birraritz, 1984 Gitane Super Corsa, 1980s DeRosa, 1981 Bianchi Campione Del Mondo, 1992 Paramount OS, 1988 Colnago Technos, 1985 RalieghUSA SBDU Team Pro
Mentioned: 207 Post(s)
Tagged: 0 Thread(s)
Quoted: 1036 Post(s)
Liked 1,237 Times
in
653 Posts
Grumpy old men
I have to confess, I had 3 derailleur bikes between 1964 and 1973 before I finally understood out how they worked (not just how to make them shift).
There was no one to teach us bike repairs back then. We figured it out on our own - trial and error - making mistakes. We shared info amongst ourselves.
verktyg
__________________
Don't believe everything you think! History is written by those who weren't there....
Chas. ;-)
Don't believe everything you think! History is written by those who weren't there....
Chas. ;-)
#17
Senior Member
Join Date: Nov 2011
Location: Port Angeles, WA
Posts: 7,922
Bikes: A green one, "Ragleigh," or something.
Mentioned: 194 Post(s)
Tagged: 0 Thread(s)
Quoted: 1627 Post(s)
Liked 630 Times
in
356 Posts
Another 1x user here: I have not been able to bend/destroy my big ol' single chainring even though I am enormously strong fat. I even have mine mounted backwards to enhance the Q-factor for my chain guard. No worries!
__________________
● 1971 Grandis SL ● 1972 Lambert Grand Prix frankenbike ● 1972 Raleigh Super Course fixie ● 1973 Nishiki Semi-Pro ● 1979 Motobecane Grand Jubile ●1980 Apollo "Legnano" ● 1984 Peugeot Vagabond ● 1985 Shogun Prairie Breaker ● 1986 Merckx Super Corsa ● 1987 Schwinn Tempo ● 1988 Schwinn Voyageur ● 1989 Bottechia Team ADR replica ● 1990 Cannondale ST600 ● 1993 Technium RT600 ● 1996 Kona Lava Dome ●
● 1971 Grandis SL ● 1972 Lambert Grand Prix frankenbike ● 1972 Raleigh Super Course fixie ● 1973 Nishiki Semi-Pro ● 1979 Motobecane Grand Jubile ●1980 Apollo "Legnano" ● 1984 Peugeot Vagabond ● 1985 Shogun Prairie Breaker ● 1986 Merckx Super Corsa ● 1987 Schwinn Tempo ● 1988 Schwinn Voyageur ● 1989 Bottechia Team ADR replica ● 1990 Cannondale ST600 ● 1993 Technium RT600 ● 1996 Kona Lava Dome ●
#18
Senior Member
Thread Starter
Join Date: Jun 2018
Posts: 733
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 213 Post(s)
Likes: 0
Liked 6 Times
in
5 Posts
Is it an IGH or are you running multiple gears in the rear?
PS
love to see another Lambert of England with the TA chainring! Same as mine. Is your crank sqaure tapered? I've heard some of them were not made with the taper.
Last edited by Buellster; 11-17-18 at 12:44 PM.
#19
Senior Member
Thread Starter
Join Date: Jun 2018
Posts: 733
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 213 Post(s)
Likes: 0
Liked 6 Times
in
5 Posts
1x6 drive train when I didn't have a wide enough bottom bracket.
52T, they are more flexy than modern chainraings but that is only an issue on track conditions with 68T rings or 52T sprinters.
Worst case scenario you break it and buy a VO singlespeed ring
did you find you had any issues not having a front derailur? I prefer the clean look of it without but I dont know if the chain will be unhappy in the highest and lowest gears...
#20
Senior Member
Join Date: Nov 2011
Location: Port Angeles, WA
Posts: 7,922
Bikes: A green one, "Ragleigh," or something.
Mentioned: 194 Post(s)
Tagged: 0 Thread(s)
Quoted: 1627 Post(s)
Liked 630 Times
in
356 Posts
that's a beauty! Could we get the whole bike in a pic?
Is it an IGH or are you running multiple gears in the rear?
PS
love to see another Lambert of England with the TA chainring! Same as mine. Is your crank sqaure tapered? I've heard some of them were not made with the taper.
Is it an IGH or are you running multiple gears in the rear?
PS
love to see another Lambert of England with the TA chainring! Same as mine. Is your crank sqaure tapered? I've heard some of them were not made with the taper.
1972 Lambert Grand Prix that was pretty beat up when I got it in 1982, and got really beat up over the subsequent 20 years. Now sporting a Shimano Alfine-8 out back (the guy I'd bought it from had the hub built into disc 29er rims for his MTB), J-Tek shifter, NOS English chain guard from eBay, misc bits and pieces from the parts bin. The frame is is one of the early Lamberts with lugs and a conventional bottom bracket. Or it's possible the guy I got the frame from in '82 had had it tapped out to a conventional bottom bracket thread; I'm not really sure.
More history on the various permutations of the bike on this thread: https://www.bikeforums.net/classic-v...ert-again.html
__________________
● 1971 Grandis SL ● 1972 Lambert Grand Prix frankenbike ● 1972 Raleigh Super Course fixie ● 1973 Nishiki Semi-Pro ● 1979 Motobecane Grand Jubile ●1980 Apollo "Legnano" ● 1984 Peugeot Vagabond ● 1985 Shogun Prairie Breaker ● 1986 Merckx Super Corsa ● 1987 Schwinn Tempo ● 1988 Schwinn Voyageur ● 1989 Bottechia Team ADR replica ● 1990 Cannondale ST600 ● 1993 Technium RT600 ● 1996 Kona Lava Dome ●
● 1971 Grandis SL ● 1972 Lambert Grand Prix frankenbike ● 1972 Raleigh Super Course fixie ● 1973 Nishiki Semi-Pro ● 1979 Motobecane Grand Jubile ●1980 Apollo "Legnano" ● 1984 Peugeot Vagabond ● 1985 Shogun Prairie Breaker ● 1986 Merckx Super Corsa ● 1987 Schwinn Tempo ● 1988 Schwinn Voyageur ● 1989 Bottechia Team ADR replica ● 1990 Cannondale ST600 ● 1993 Technium RT600 ● 1996 Kona Lava Dome ●
#22
Senior Member
Thread Starter
Join Date: Jun 2018
Posts: 733
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 213 Post(s)
Likes: 0
Liked 6 Times
in
5 Posts
I've splattered this one all over the forums for the last couple years, but here it is again:
1972 Lambert Grand Prix that was pretty beat up when I got it in 1982, and got really beat up over the subsequent 20 years. Now sporting a Shimano Alfine-8 out back (the guy I'd bought it from had the hub built into disc 29er rims for his MTB), J-Tek shifter, NOS English chain guard from eBay, misc bits and pieces from the parts bin. The frame is is one of the early Lamberts with lugs and a conventional bottom bracket. Or it's possible the guy I got the frame from in '82 had had it tapped out to a conventional bottom bracket thread; I'm not really sure.
More history on the various permutations of the bike on this thread: https://www.bikeforums.net/classic-v...ert-again.html
1972 Lambert Grand Prix that was pretty beat up when I got it in 1982, and got really beat up over the subsequent 20 years. Now sporting a Shimano Alfine-8 out back (the guy I'd bought it from had the hub built into disc 29er rims for his MTB), J-Tek shifter, NOS English chain guard from eBay, misc bits and pieces from the parts bin. The frame is is one of the early Lamberts with lugs and a conventional bottom bracket. Or it's possible the guy I got the frame from in '82 had had it tapped out to a conventional bottom bracket thread; I'm not really sure.
More history on the various permutations of the bike on this thread: https://www.bikeforums.net/classic-v...ert-again.html
I've actually got an Alfine 8 I was thinking of putting in but am concerned it would be more thief bait than a standard 5 speed freewheel. How does the Jtek bar end shifter work? I've been considering buying one but the reviews on them are mixed. It has some trigger shifters right now and they work wonderfully I'd just like the option to do bars other than road.
#23
Phyllo-buster
Join Date: Jan 2010
Location: Nova Scotia
Posts: 8,844
Bikes: roadsters, club bikes, fixed and classic
Mentioned: 133 Post(s)
Tagged: 0 Thread(s)
Quoted: 2296 Post(s)
Liked 2,046 Times
in
1,253 Posts
#24
Senior Member
Join Date: Nov 2011
Location: Port Angeles, WA
Posts: 7,922
Bikes: A green one, "Ragleigh," or something.
Mentioned: 194 Post(s)
Tagged: 0 Thread(s)
Quoted: 1627 Post(s)
Liked 630 Times
in
356 Posts
The J-Tek is a little finicky, compared to the stock trigger shifter. Mostly it's slightly 'vague' on the clicks. Not as bad as, say, Campy Synchro of the mid 80s, but more vague than SIS of the same era. If you look at the pic above, you can see I've routed the shift cable as cleanly as possible, no sharp curves and minimal cable housing, but it still has to be adjusted EXACTLY right to get clean shifts consistently. Inline cable adjuster is an absolute must.
__________________
● 1971 Grandis SL ● 1972 Lambert Grand Prix frankenbike ● 1972 Raleigh Super Course fixie ● 1973 Nishiki Semi-Pro ● 1979 Motobecane Grand Jubile ●1980 Apollo "Legnano" ● 1984 Peugeot Vagabond ● 1985 Shogun Prairie Breaker ● 1986 Merckx Super Corsa ● 1987 Schwinn Tempo ● 1988 Schwinn Voyageur ● 1989 Bottechia Team ADR replica ● 1990 Cannondale ST600 ● 1993 Technium RT600 ● 1996 Kona Lava Dome ●
● 1971 Grandis SL ● 1972 Lambert Grand Prix frankenbike ● 1972 Raleigh Super Course fixie ● 1973 Nishiki Semi-Pro ● 1979 Motobecane Grand Jubile ●1980 Apollo "Legnano" ● 1984 Peugeot Vagabond ● 1985 Shogun Prairie Breaker ● 1986 Merckx Super Corsa ● 1987 Schwinn Tempo ● 1988 Schwinn Voyageur ● 1989 Bottechia Team ADR replica ● 1990 Cannondale ST600 ● 1993 Technium RT600 ● 1996 Kona Lava Dome ●
#25
Insane Bicycle Mechanic
Join Date: Mar 2008
Location: other Vancouver
Posts: 9,826
Mentioned: 34 Post(s)
Tagged: 0 Thread(s)
Quoted: 797 Post(s)
Liked 694 Times
in
371 Posts
Yes, front BB on a tandem. Ovalized bottom tube, one cable to each of the derailleurs. and an eccentric BB. OTOH, we're all a little eccentric here.
__________________
Jeff Wills
Comcast nuked my web page. It will return soon..
Jeff Wills
Comcast nuked my web page. It will return soon..