Classic & Vintage - drilled chainrings

I got these today of off a cool guy here in Philly, there are no markings anywhere on the rings? any ideas?
http://i5.photobucket.com/albums/y167/stumpyspic/chainrings003.jpg
http://i5.photobucket.com/albums/y167/stumpyspic/chainrings002.jpg
http://i5.photobucket.com/albums/y167/stumpyspic/chainrings001.jpg

You bought them from somebody from weightweenies.com?

Drillium

a crazy way to trim a few grams off your bike weight

I think it might have been sort of DIY

I have a set of brake levers that are drilled out... I can hear the wind whistling there, giving me .00235 extra miles per hour back to my commute

I remember when this was all the rage in the mid 70's. But you have to do a slight countersink on all those holes or the chain rings will stress crack.

I just like the look of drilled chainrings on a bike, trust me, I am in no way a weightweenie! :roflmao:

It wasn't all DIY. My Peugeot came with drilled chainrings

http://www.bikeforums.net/showthread.php?t=319782&highlight=bordeaux

[QUOTE=tjspiel;5310652]It wasn't all DIY. My Peugeot came with drilled chainrings

+1 ... I've got a set of from-the-factory Sugino drillium rings.

But it gets worse:

http://www.velo-retro.com/Spivey%20jpgs/SpiveyCranks.jpg

It wasn't all DIY. My Peugeot came with drilled chainrings

http://www.bikeforums.net/showthread.php?t=319782&highlight=bordeaux

Yup, my Peugeot had them too.

I'd like to put one of these on my Px10! I'd feel better about bidding on it if someone could tell me the correct BB spindle length for them!

http://cgi.ebay.com/CRANKSET-STRONGLIGHT-TOURING-99-TRIPLE-RANDONNEUSE_W0QQitemZ330166426068QQihZ014QQcategoryZ56197QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

I have seen them on a Zeus from that era (early/mid 70's) too. In fact most of the hard core racers of that era tried drilling stuff...at least once:D

Aaron:)

Those look like Stronglights. A 122mm BCD would clinch the identity.

My 1980 Peugeot PKN-10E came with factory-drilled Stronglight 52-42 chainrings.

Dirtdrop,
I am putting a Stronglight 99bis 'drillium' triple crankset (52/48/36) on my Peugeot UE8 (I had other plans for the bike, but changed my mind). I currently have a TA 116.5 mm spindle made for a double and may have to switch to a TA 120 or 123.5 mm made for a triple. Sheldon Brown suggested I first try the double spindle before purchasing a replacement. I am planning to use the original Simplex Prestige front derailleur and see how it goes. Sheldon also suggested I read his chainline article http://www.sheldonbrown.com/chainline.html. If you want to wait, I will let you know how it works out for me in a week or two. The triple on EBay that you are looking at is one of the nicest I have seen.
Cheers,


I'd like to put one of these on my Px10! I'd feel better about bidding on it if someone could tell me the correct BB spindle length for them!

http://cgi.ebay.com/CRANKSET-STRONGLIGHT-TOURING-99-TRIPLE-RANDONNEUSE_W0QQitemZ330166426068QQihZ014QQcategoryZ56197QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

I have seen them on a Zeus from that era (early/mid 70's) too. In fact most of the hard core racers of that era tried drilling stuff...at least once:D

Aaron:)

I never did !

The Peugeot catalogs that I have show the drillium chainrings being used in the late 70s to early 80s. The Wannado Peugeot Show (http://home.wanadoo.nl/peugeotshow/) shows them as early as 1977. I am curious to know when Stronglight first produced these.



I never did !

Those rings are NOT for a Stronglight 93 or 99. They are for a Sugino GT or similar, bolt circle diameter 110mm. I have them on my Nishiki International, though they were originally on a Nishiki Continental that I have since sold.

Good point, I apparently overlooked that companies other than Stronglight could be drilling chainrings. I am still curious to know when Stronglight began drilling their chainrings.



Those rings are NOT for a Stronglight 93 or 99. They are for a Sugino GT or similar, bolt circle diameter 110mm. I have them on my Nishiki International, though they were originally on a Nishiki Continental that I have since sold.

http://s139.photobucket.com/albums/q299/ozneddy_photo/?action=view&current=P1010030.jpg "I luv my drillium"

http://s139.photobucket.com/albums/q299/ozneddy_photo/?action=view&current=P1010030.jpg

Dirtdrop,
I am putting a Stronglight 99bis 'drillium' triple crankset (52/48/36) on my Peugeot UE8 (I had other plans for the bike, but changed my mind). I currently have a TA 116.5 mm spindle made for a double and may have to switch to a TA 120 or 123.5 mm made for a triple. Sheldon Brown suggested I first try the double spindle before purchasing a replacement. I am planning to use the original Simplex Prestige front derailleur and see how it goes. Sheldon also suggested I read his chainline article http://www.sheldonbrown.com/chainline.html. If you want to wait, I will let you know how it works out for me in a week or two. The triple on EBay that you are looking at is one of the nicest I have seen.
Cheers,

That's the kind of first-hand experience I was hoping for. Somebody sold off some French thread Stronglight bottom brackets made for triples on eBay about a month ago. I wish I had bought one!

I think you'll be asking too much of that Prestige FD!

Please let me know how it comes out.

According to one of Sheldon's articles, a double derailleur coupled with a 52/48/36T chainring combination should work best. I think that's the idea between the small drop between the two outer rings. I will let you know how it works out. I can always convert the crankset to a 48/36T double if it does not shift well as a triple.



That's the kind of first-hand experience I was hoping for. Somebody sold off some French thread Stronglight bottom brackets made for triples on eBay about a month ago. I wish I had bought one!

I think you'll be asking too much of that Prestige FD!

Please let me know how it comes out.

My mid/early 80's Nishiki Olympic 12 had these exact chainrings - Sugino RT...

My mid/early 80's Nishiki Olympic 12 had these exact chainrings - Sugino RT...

Those certainly look just like mine :) Thanks! my wifes fixie has the Sugino VP, maybe Ill slap the smaller chainring on her bike, if anything it will at least look nice! :D

OK, heres where the smaller chainring has ended up, my wifes fixie, as I said, looks cool! ;) and two more pics of my tart of a dog :lol: sleeping as usual :) (you gotta love him!)
http://i5.photobucket.com/albums/y167/stumpyspic/drilliumringandcrazydog005.jpg
http://i5.photobucket.com/albums/y167/stumpyspic/drilliumringandcrazydog003.jpg
http://i5.photobucket.com/albums/y167/stumpyspic/drilliumringandcrazydog006.jpg

http://velobase.com/CompImages/Crankset/E9BF68FA-BA06-45F6-ADE8-A691E2595D1F.jpeg

http://velobase.com/ViewSingleComponent.aspx?ID=E1D506A1-377D-4CAD-A9AC-4607D1ABDA06&Enum=115&AbsPos=109

I wish I could read the lenth on that spindle!

Drillium

a crazy way to trim a few grams off your bike weight

And a great way to make it look unique, IMHO.

-Kurt

I wish I could read the lenth on that spindle!

118

I wish I could read the lenth on that spindle!

That's a double though right? I thought I read somewhere to just add 5mm on the driveside to convert to a triple, although if twsindypa says Sheldon recommended trying the original spindle before buying a new one that sounds pretty reasonable to me.