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Specialties T.A. Cyclotouriste (a.k.a. Pro 5 Vis) History/Info

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Specialties T.A. Cyclotouriste (a.k.a. Pro 5 Vis) History/Info

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Old 09-10-11, 05:27 AM
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Originally Posted by Captain Blight View Post
So what size puller do I need for a mid-60s T.A. 3-pin crank? Park tool is too small, Stronglight is *just* too big. Perplexing.
23mm TA puller. Var made one as well.
The early Park CCP-1 was 23mm on one side and 22 on the other.
FWIW, I've been searching for a 38-40t chainring for a three-pin TA crank for many years.


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Old 09-10-11, 06:40 AM
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Connecting Hardware for 50.4bcd Cranks

I may be wrong, but the nuts ant bolts used to connect the outer and inner chainrings on those Pro 5 Vis do not seem to be standard one. The diameter of the hole in the chainring is around 7mm and the recess (right word???) is 10mm.
Of course it is always possible to buy the kit from VO .
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Old 09-10-11, 09:16 AM
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Originally Posted by Captain Blight View Post
So what size puller do I need for a mid-60s T.A. 3-pin crank? Park tool is too small, Stronglight is *just* too big. Perplexing.
TA: 23 x 1
Stronglight before 1982: 23.35 x 1, 1982 and after: 22 x 1
Everyone else: 22 x 1

JA Stein has the pullers
http://www.jastein.com/Html/Tools_for_Cranks.htm
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Old 09-10-11, 09:33 AM
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Originally Posted by Charles Wahl View Post
TA: 23 x 1
Stronglight before 1982: 23.35 x 1, 1982 and after: 22 x 1
Everyone else: 22 x 1

JA Stein has the pullers
http://www.jastein.com/Html/Tools_for_Cranks.htm
This isn't in the Park Tool catalog any longer, but can still be found(I bought mine a couple months ago).

CCP-2 Crank puller

http://wheelworld.com/product/park-t...uller-5151.htm
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Old 09-10-11, 12:30 PM
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Hey, thanks you guys! I knew there was something funky going on there. Fortunately, my credit card and the Interwebs machine will get that crankarm off in no time at all!

Top506 (First sergeant, 506 PIR?), almost any 116 BCD 3-pin should fit. If you can live with a steel inner ring, then they are basically free for the asking from any LBS that deals with cottered cranks. You may need to do a little Dremel work to get the... I don't know what you'd call them, the inner stub arms, I guess... to fit on the crankarms. I have also been told but can't confirm that Campy 3-pin fit just fine.
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Old 09-10-11, 12:46 PM
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Originally Posted by top506 View Post
23mm TA puller. Var made one as well.
The early Park CCP-1 was 23mm on one side and 22 on the other.
FWIW, I've been searching for a 38-40t chainring for a three-pin TA crank for many years.


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There is an eBay seller located in France that has a bunch of NOS 37-tooth NOS rings for the 3-arm TA crank. He had them listed at $40 each BIN, which I thought was a bit high, so then he sold none of them, and re-listed just one of them at $55. Aaargh! Putain! Makes no sense whatsoever, but often chez eBay doesn't...
At $55, you're getting close to custom-made pricing.
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Old 09-10-11, 12:54 PM
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Originally Posted by Charles Wahl View Post
TA: 23 x 1
Stronglight before 1982: 23.35 x 1, 1982 and after: 22 x 1
Everyone else: 22 x 1

JA Stein has the pullers
http://www.jastein.com/Html/Tools_for_Cranks.htm
...and then there was Zeus, who had the brilliant idea of using a 16 mm crankarm fixing bolt, but with the 22.0 mm extractor threads. Talk about a tight fit! I have a Zeus 'peanut butter' wrench to fit that combo., but I'm not aware of much of anything else that works (that isn't home-made or modified).
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Old 09-10-11, 01:46 PM
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I took 4 or 5 pics of pages out of my 5th edition Southerlands manual as it pertains to TA cranks. I'll probably scan them into much better pdf's when I'm not feeling lazy.





they are here:

https://picasaweb.google.com/1133647...57/TACrankInfo
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Old 09-11-11, 07:29 PM
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Originally Posted by 753proguy View Post
...and then there was Zeus, who had the brilliant idea of using a 16 mm crankarm fixing bolt, but with the 22.0 mm extractor threads. Talk about a tight fit! I have a Zeus 'peanut butter' wrench to fit that combo., but I'm not aware of much of anything else that works (that isn't home-made or modified).
Park CCW-16:

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Old 09-11-11, 08:17 PM
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I suppose that's one way to make sure no one steals your vintage rare parts....
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Old 09-12-11, 04:47 PM
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Originally Posted by JohnDThompson View Post
Park CCW-16:

Good to know. Gracias, amigo.

(And note how little chainring there is inside the chainring bolt's edge. Whoa).

John, do you know of any source for 36-37-38 119 BCD chainrings?
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Old 09-12-11, 08:00 PM
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Originally Posted by 753proguy View Post
John, do you know of any source for 36-37-38 119 BCD chainrings?
Besides eBay, only a custom shop like Highpath Engineering, AFAIK. Which, alas, seems to have withdrawn from the chainring business: http://www.highpath.co.uk/highpath/cycles/eggs01.html
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Old 09-12-11, 08:17 PM
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Originally Posted by JohnDThompson View Post
Besides eBay, only a custom shop like Highpath Engineering, AFAIK. Which, alas, seems to have withdrawn from the chainring business: http://www.highpath.co.uk/highpath/cycles/eggs01.html
Yes, they have, and CT in Japan retired, with no one taking over his business. They are pretty much unobtainium on eBay - Baron Corpuz in California has a few 38s for $119 each, but that's about it. I'm trying to get some 36s made, but as you say there are very, very few options in that area now....
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Old 09-20-11, 04:55 AM
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I made a few 119mm BCD chainrings out of 86mm BCD ones like this:



You can see there is room there to put in the holes for the larger bolt circle.
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Old 12-29-11, 07:55 PM
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This is my Specialties T.A. Pro 5 Vis Tandem crank sets. 170mm long crank arms with french 14mm X 1.25 pedal threads. It was set up as a triple when I received it, I converted it to a double with new bushings and bolts.

I'm now looking for Bottom Brackets for this T.A. crank set for my Gitane Tandem, The 5 speed Gitane has a French thread 68mm BB and came with cottered cranks with 146mm long cottered BB axles. I'm now wondering what length ISO square taper BB that I'm going to need?

Tandem, French threads, ISO crank arms... is Phil Wood my only option





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Old 12-30-11, 09:18 AM
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On impulse, I bought a TA double crankset on ebay from a guy in France. 32/42 rings and 155mm arms. Weird, but maybe I'll find I like them. rhm is a prophet of short arms, and maybe I'll become his disciple.
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Old 12-30-11, 10:32 AM
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Originally Posted by mtbjeff View Post
I'm now looking for Bottom Brackets for this T.A. crank set for my Gitane Tandem, The 5 speed Gitane has a French thread 68mm BB and came with cottered cranks with 146mm long cottered BB axles. I'm now wondering what length ISO square taper BB that I'm going to need?

Tandem, French threads, ISO crank arms... is Phil Wood my only option
It shouldn't be too difficult to find TA cups and spindles. You are going to run the drive crank as a double, right? If you want a sealed BB unit I'd probably go with a spindle length of 115 or so.
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Old 12-30-11, 01:01 PM
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Originally Posted by realestvin7 View Post
Great stuff. I love those cranks. I have a couple copies.

My favorite one...
I have a Stronglight 49D on it's way to me from Ebay. Earmarked for Rando Cheepo, which might be a Trek 620.
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Old 12-30-11, 01:08 PM
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49Ds are my favorite, but I've decided to give the TAs a go on my current rando-ish build. I just restored these arms and added newer rings. My apologies for the terrible lighting.

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Old 12-30-11, 01:22 PM
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Originally Posted by ColonelJLloyd View Post
It shouldn't be too difficult to find TA cups and spindles. You are going to run the drive crank as a double, right? If you want a sealed BB unit I'd probably go with a spindle length of 115 or so.
The 115mm sounds narrow after looking at Sheldon Browns TA chart that calls out a 127mm for a Tandem. It might take a few fit checks to zero in on the size I need.

Below is a screen capture from Sheldon Brown : http://sheldonbrown.com/bbsize.html

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Old 12-30-11, 01:40 PM
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Jeff, the fact that it's being used on a tandem should make no difference. It is the number of chainrings used that determine spindle length. And note that the JIS taper will push the arms out a bit further than the TA spindle. You'll notice Sheldon's chart actually lists a 115mm spindle for a Shimano sealed unit for use with a double.

I would buy a 115-116mm sealed unit and a few spacers of various lengths.
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Old 12-30-11, 02:04 PM
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Colonel thank you, I do plan to run the tandem as a double and the TA chart for a Tandem might be for a triple at 127 mm ( I noticed that the chart says a double with Shimano is 115 mm and 118.5 mm with # 344 T.A. spindle.

Also the rear Drum brake Hub spacing on this Gitane Tandem is 124 mm with a 5 speed freewheel, does the wider rear hub effect the width of the BB spindle?
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Old 12-30-11, 02:44 PM
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Lowest Q is when the crank arms barely clear the chainstay tubes.

does the wider rear hub effect the width of the BB spindle?
emotionally, no. you do change where the chainline center is in back.

whether you like the results is a separate issue ..

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Old 12-30-11, 03:27 PM
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You may find this interesting

http://www.blackbirdsf.org/ta/
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Old 12-30-11, 04:52 PM
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Originally Posted by Captain Blight View Post
So what size puller do I need for a mid-60s T.A. 3-pin crank? Park tool is too small, Stronglight is *just* too big. Perplexing.
You need a TA extractor -- 23.0mm x 1.0mm. The original Park crank extractor was double-ended, 23.0mm x 1.0mm for TA on one end and 22.0mm x 1.0mm on the other for everything else (except Stronglight: 23.35mm x 1.0mm). Old style Park tool on the left below:

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