Mystery Crankset
11-14-20, 08:39 PM
#1
Old bikes, Older guy
Thread Starter
Join Date: Jun 2014
Location: Fiscal Conservative on the Lefty Coast - Oregon
Posts: 841
Bikes: A few modern, Several vintage, All ridden when weather allows.
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 250 Post(s)
Liked 165 Times
in
114 Posts
Mystery Crankset
Hi folks,
Does anyone recognize this crankset? It's on a Schwinn Le Tour, number on head badge is 60639. Small label on inside of pedal end of arm, RR3CCB175.
The crank arm bolts are strange. The inner is a 8mm Allen socket & the outer is a 10mm Allen socket with a "gear" like image on it.
Thanks and regards,
Van
Does anyone recognize this crankset? It's on a Schwinn Le Tour, number on head badge is 60639. Small label on inside of pedal end of arm, RR3CCB175.
The crank arm bolts are strange. The inner is a 8mm Allen socket & the outer is a 10mm Allen socket with a "gear" like image on it.
Thanks and regards,
Van
__________________
Remember: Real bikes have pedals.
...and never put a yellow tail on a Red, White and Blue kite!
Remember: Real bikes have pedals.
...and never put a yellow tail on a Red, White and Blue kite!
11-14-20, 08:59 PM
#2
Senior Member
Join Date: Oct 2015
Location: PDX
Posts: 13,033
Bikes: Merz x 5 + Specialized Merz Allez x 2, Strawberry/Newlands/DiNucci/Ti x3, Gordon, Fuso/Moulton x2, Bornstein, Paisley,1958-74 Paramounts x3, 3rensho, 74 Moto TC, 73-78 Raleigh Pro's x5, Marinoni x2, 1960 Cinelli SC, 1980 Bianchi SC, PX-10 X 2
Mentioned: 267 Post(s)
Tagged: 0 Thread(s)
Quoted: 4510 Post(s)
Liked 6,374 Times
in
3,666 Posts
Looks FSA/Sugino to me.
11-14-20, 09:01 PM
#3
Mr. Anachronism
Join Date: Jan 2013
Location: Somewhere west of Tobie's
Posts: 2,087
Bikes: fillet-brazed Chicago Schwinns, and some other stuff
Mentioned: 29 Post(s)
Tagged: 0 Thread(s)
Quoted: 526 Post(s)
Liked 256 Times
in
165 Posts
That is a strange one, that I've never seen on a Letour.
Not that it will help your ID, but I believe the head badge number you've provided has one too many digits.
Not that it will help your ID, but I believe the head badge number you've provided has one too many digits.
__________________
"My only true wisdom is in knowing I have none" -Socrates
"My only true wisdom is in knowing I have none" -Socrates
11-14-20, 09:16 PM
#4
Senior Member
Join Date: Jun 2006
Posts: 20,305
Mentioned: 130 Post(s)
Tagged: 0 Thread(s)
Quoted: 3464 Post(s)
Liked 2,827 Times
in
1,995 Posts
Likes For repechage:
11-14-20, 11:03 PM
#5
Old bikes, Older guy
Thread Starter
Join Date: Jun 2014
Location: Fiscal Conservative on the Lefty Coast - Oregon
Posts: 841
Bikes: A few modern, Several vintage, All ridden when weather allows.
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 250 Post(s)
Liked 165 Times
in
114 Posts
Hello again,
A bit more info. Yep, the HB number is correct. This is a real Franken bike. It has an Altus front derailleur, DeerHead RD & Suntour Accushift bar ends. The crankset has a 130 BCD. Possibly only the FD is original.
Now, how do I get the damn thing off?
Cheers,
Van
A bit more info. Yep, the HB number is correct. This is a real Franken bike. It has an Altus front derailleur, DeerHead RD & Suntour Accushift bar ends. The crankset has a 130 BCD. Possibly only the FD is original.
Now, how do I get the damn thing off?
Cheers,
Van
__________________
Remember: Real bikes have pedals.
...and never put a yellow tail on a Red, White and Blue kite!
Remember: Real bikes have pedals.
...and never put a yellow tail on a Red, White and Blue kite!
11-15-20, 03:52 AM
#6
Senior Member
Join Date: Feb 2020
Posts: 2,813
Mentioned: 49 Post(s)
Tagged: 0 Thread(s)
Quoted: 1105 Post(s)
Likes: 0
Liked 1,326 Times
in
782 Posts
I don't know but I bet the cap comes off with the big hex and the bolt comes off with the small one.
Easy enough to find out; however if the cap is really an outer bearing for a flanged bolt so it self-extracts, it (should be) left-hand thread; so do the same as you would do for an unknown fixed cup - go each way, trying a little harder each time. If it's left, snug it back down and use the inner one.
Easy enough to find out; however if the cap is really an outer bearing for a flanged bolt so it self-extracts, it (should be) left-hand thread; so do the same as you would do for an unknown fixed cup - go each way, trying a little harder each time. If it's left, snug it back down and use the inner one.
11-15-20, 08:18 AM
#7
Full Member
Join Date: Jul 2018
Location: WNY
Posts: 441
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 175 Post(s)
Liked 305 Times
in
160 Posts
60639 is the zip code in Chicago where Schwinn was located. Is the crank length 175 mm? Looks newish...
__________________
72+76 Super Course, 74 P-10+ 79 Tandem Paramounts, 84 Raleigh Alyeska, 84 Voyageur SP, 85 Miyata Sport 10 mixte and a queue
72+76 Super Course, 74 P-10+ 79 Tandem Paramounts, 84 Raleigh Alyeska, 84 Voyageur SP, 85 Miyata Sport 10 mixte and a queue
11-15-20, 11:10 AM
#8
is just a real cool dude
Join Date: Aug 2010
Location: The Thumb, MI
Posts: 3,162
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 30 Post(s)
Likes: 0
Liked 27 Times
in
11 Posts
Pretty sure that's a Truvativ/Sram crankest of some sort. I had a polished triple on an old Cannondale and I thought was a purdy looking crank for a mid level crankset. They came in both cartridge style bb and external bearing bb.
Last edited by Henry III; 11-15-20 at 11:18 AM.
Likes For Henry III:
11-15-20, 11:22 PM
#9
Ride, Wrench, Swap, Race
Join Date: Jan 2010
Location: Northern California
Posts: 9,182
Bikes: Cheltenham-Pedersen racer, Boulder F/S Paris-Roubaix, Varsity racer, '52 Christophe, '62 Continental, '92 Merckx, '75 Limongi, '76 Presto, '72 Gitane SC, '71 Schwinn SS, etc.
Mentioned: 132 Post(s)
Tagged: 0 Thread(s)
Quoted: 1562 Post(s)
Liked 1,287 Times
in
858 Posts
Self-extracting bolts, so leave the larger 10mm alone(!) and just unscrew the inner 8mm bolt to pull the arms off.
These usually come off without much effort since the taper fit bottoms on a ledge instead of wedging ever tighter.
These usually come off without much effort since the taper fit bottoms on a ledge instead of wedging ever tighter.
11-17-20, 12:47 AM
#10
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
Nuke it from orbit, it's the only way to be sure.
__________________
● 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 ●
Likes For Lascauxcaveman:
11-17-20, 09:03 PM
#11
Old bikes, Older guy
Thread Starter
Join Date: Jun 2014
Location: Fiscal Conservative on the Lefty Coast - Oregon
Posts: 841
Bikes: A few modern, Several vintage, All ridden when weather allows.
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 250 Post(s)
Liked 165 Times
in
114 Posts
Hi folks,
Mystery solved! The crankset is a Truvative or at least the BB is. Once I figured out how the self extracting bolts, the arms came off easily, but had to take it to the co-op to get the BB out. Thanks again for your feedback.
Cheers,
Van
Mystery solved! The crankset is a Truvative or at least the BB is. Once I figured out how the self extracting bolts, the arms came off easily, but had to take it to the co-op to get the BB out. Thanks again for your feedback.
Cheers,
Van
__________________
Remember: Real bikes have pedals.
...and never put a yellow tail on a Red, White and Blue kite!
Remember: Real bikes have pedals.
...and never put a yellow tail on a Red, White and Blue kite!
Likes For Senior Ryder 00:
