Help ID This Stronglight Chain Ring
03-12-10 | 03:17 AM
#1
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Я люблю суп
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Help ID This Stronglight Chain Ring
I got this 40t ring from a LBS for a buck. Tried to install it on the 93 crank, all the holes lined up then I realized the chainring holes were too small. What's the deal? Is this thing defective or is it for different Stronglight crank?
03-12-10 | 07:47 AM
#2
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Joined: May 2008
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From: Fredericksburg, Va
Bikes: ? Proteous, '65 Frejus TDF, '73 Bottecchia Giro d'Italia, '83 Colnago Superissimo, '84 Trek 610, '84 Trek 760, '88 Pinarello Veneto, '88 De Rosa Pro, '89 Pinarello Montello, 'Litespeed Catalyst'94 Burley Duet, 97 Specialized RockHopper, 2010 Langster
No, you need the right chain ring fastners. Mine is identical and works fine on my crank.
03-12-10 | 07:58 AM
#3
I bought a 40 like that. I don't know which crank it's for, but the holes are too small for a 93. I solved the problem by drilling out the holes and countersinking with my drill press.
03-12-10 | 08:25 AM
#4
Cat 6
Joined: Dec 2007
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From: Mountain Brook, AL
I think its the older 63's(?) that had the smaller bolts, but I'd really have to check VB and/or CR to verify the correct information, but is is an older Stronglight standard.
Edit: CR had the answer. The 57s used 8mm bolts, the 63s adopted [current] 10mm standard.
Edit: CR had the answer. The 57s used 8mm bolts, the 63s adopted [current] 10mm standard.
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72 Frejus (for sale), Holdsworth Record (for sale), special CNC & Gitane Interclub / 74 Italvega NR (for sale) / c80 French / 82 Raleigh Intl MkII f&f (for sale)/ 83 Trek 620 (for sale)/ 84 Bruce Gordon Chinook (for sale)/ 85 Ron Cooper / 87 Centurion IM MV (for sale) / 03 Casati Dardo / 08 BF IRO / 09 Dogma FPX / 09 Giant TCX0 / 10 Vassago Fisticuff
72 Frejus (for sale), Holdsworth Record (for sale), special CNC & Gitane Interclub / 74 Italvega NR (for sale) / c80 French / 82 Raleigh Intl MkII f&f (for sale)/ 83 Trek 620 (for sale)/ 84 Bruce Gordon Chinook (for sale)/ 85 Ron Cooper / 87 Centurion IM MV (for sale) / 03 Casati Dardo / 08 BF IRO / 09 Dogma FPX / 09 Giant TCX0 / 10 Vassago Fisticuff
Last edited by Ex Pres; 03-12-10 at 08:33 AM.
03-12-10 | 09:21 AM
#6
I have a TA Pro with that size hole. SJX426 is correct, I think the only difference is the chainring bolt size.
03-12-10 | 10:47 AM
#8
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From: Fredericksburg, Va
Bikes: ? Proteous, '65 Frejus TDF, '73 Bottecchia Giro d'Italia, '83 Colnago Superissimo, '84 Trek 610, '84 Trek 760, '88 Pinarello Veneto, '88 De Rosa Pro, '89 Pinarello Montello, 'Litespeed Catalyst'94 Burley Duet, 97 Specialized RockHopper, 2010 Langster
Ok but it was destroyed in an accident last May. Three broken bones, yada yada yada..... Pedals are easily replaced for back to vintage. I bought the bike used in 73 and it looked like it does in the pictures then. It hung in variousgarages over 30 years and then I brought it out and started riding after 30 years. Wish I could find a replacement (72) 
More pics here https://s985.photobucket.com/albums/a.../Le%20Campion/
More pics here https://s985.photobucket.com/albums/a.../Le%20Campion/
03-12-10 | 01:29 PM
#10
Smaller bolts won't fit the front ring or the 93 crank. Drilling out the holes is the solution. Countersinking is not required, but it looks better. The ring is identical in all respects to a 93 ring, but the holes are smaller.
03-12-10 | 02:22 PM
#12
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Bikes: 1986 Alan Record Carbonio, 1985 Vitus Plus Carbone 7, 1984 Peugeot PSV, 1972 Line Seeker, 1986(est.) Medici Aerodynamic (Project), 1985(est.) Peugeot PY10FC
Adding it to a slightly older bike then would be a common thing.....now, brifters..........those are not kewhl!
.....ergobars, unfortunately, are acceptable
......Chombi
03-13-10 | 12:06 PM
#14
Senior Member
Joined: May 2008
Posts: 10,106
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From: Fredericksburg, Va
Bikes: ? Proteous, '65 Frejus TDF, '73 Bottecchia Giro d'Italia, '83 Colnago Superissimo, '84 Trek 610, '84 Trek 760, '88 Pinarello Veneto, '88 De Rosa Pro, '89 Pinarello Montello, 'Litespeed Catalyst'94 Burley Duet, 97 Specialized RockHopper, 2010 Langster
GB - what was then defined as 24".
Hey, I still have the origianl pedals and cages. The clipless were for riding! I also had KoolStops, was that also a bad thing? I did lub everything with period Campy grease! Bought it in 73 and it is still good. Oh I upgraded the brake housings too. Oh yea, I put a Ultra Six freewheel on as well, but still have the original freewheel.
Hey, I still have the origianl pedals and cages. The clipless were for riding! I also had KoolStops, was that also a bad thing? I did lub everything with period Campy grease! Bought it in 73 and it is still good. Oh I upgraded the brake housings too. Oh yea, I put a Ultra Six freewheel on as well, but still have the original freewheel.
