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Chawheel Bolt Circle Diameter - Campagnolo Nuovo Record

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Chawheel Bolt Circle Diameter - Campagnolo Nuovo Record

Old 07-27-20, 09:32 PM
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Bad Lag
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Chainwheel Bolt Circle Diameter - Campagnolo Nuovo Record

Does anyone know what the size is for the Nuovo Record BCD?

Who makes rings in this size?

Where does one go to buy replacement chainwheels for a NR crank? I have a typical 42/52 pair up front. I think those sizes are fine.

What's a good chain for a then-standard five speed freewheel? I am currently using a Regina Oro (drilled).

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Old 07-27-20, 10:56 PM
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144. Sugino is a good alternative to Campy for rings, and they are usually less expensive at the only place to reliably find old school rings: Ebay. A great chain to pair with them is a Sedisport; Boulder Bicycle may still have some of their bulk chain for sale.

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Old 07-27-20, 10:58 PM
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Campy NR BCD is 144mm. NOS replacement rings are available on Ebay- be prepared to put a significant dent in your credit card. Other brands to consider are Sugino, TA, Vuelta...
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Old 07-27-20, 11:02 PM
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Yup. 144 and Sugino. I raced the Sugino Mighty. All Sugino rings except a Campy NR 43 I won at a race. I couldn't tell what rings were on the bike outside the tooth count.

I ride Sugino 75 now. Same 144 BCD. 1/8" track. Rings are Sugino 42 and a Campy 43 (again! Never thought about that before!)

Edit: I haven't ridden 3/32" old school chain and cogs for decades but I am virtually certain KMC still makes them. Probably just as good, maybe a touch less sexy than the Reginas of the say.

Ben

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Old 07-27-20, 11:55 PM
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trend: both Sugino 144 cranks & the rings are not really cheaper than Campy’s on the ‘bay recently. lower priced 144bcd rings can be found under marques like SR (Sakae Ringyo, not Super Record) TA etc
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Old 07-28-20, 01:54 AM
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Both Sugino and SR also make 144 bcd (bolt circle diameter) rings in drilled OEM configurations for a little bling. Also in silver anodized or black anodized. Used rings of any type will be cheaper so look carefully at pics when you are shopping. You could always pay $10 and put out a WTB thread in Classic and Vintage Sales here at BF, you might find someone has a nice one for not a lot of money.

Here's an NOS 52 tooth Sugino, drilled, $55, no affiliation
https://www.ebay.com/itm/vintage-NOS...QAAOSwiSJbhXmC
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