144mm Bolt Circle Diameter (Traditional Campagnolo), 5-Bolt chainrings
144mm Bolt Circle Diameter (BCD), 5-Bolt chainrings on this page:
Avocet: 44-tooth
Campagnolo: SR 42-tooth | NR 45-tooth | NR 47-tooth | SR 52-tooth | NR 54-tooth
Mavic: 630 42-tooth | 630 53-tooth
Specialized: 52-tooth
SR: 52-tooth
Stronglight: 107 52-tooth | 107 54-tooth
Sugino: Mighty Comp 43-tooth | Mighty Comp 45-tooth | Mighty Comp 48-tooth | Mighty Comp 49-tooth | Mighty 52-tooth | Aero Mighty 53-tooth | Mighty Compe 53-tooth | Mighty Compe 54-tooth | Mighty Competition 54-tooth | Mighty Compe 55-tooth
SunTour: Superbe 52-tooth
Unknown maker: 52-tooth
1/8" Track chainrings: Sugino 50-tooth
Back to master list of available chainrings
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Bolt Circle Diameter is the diameter of the circle formed by the centers of the chainring fixing bolts. With 4-bolt cranksets, this is easy to measure. 5-bolt cranks are more difficult.
144mm is the bolt circle diameter of an entire generation of 1960s, 70s, 80s and even 1990s cranksets, including Campagnolo, Sugino, Mavic, Stronglight, Ofmega, SR, SunTour, Gipiemme, Zeus as well as others.
If you are unsure about what size chainring you need, Wolf Tooth Components has an excellent guide to measuring your rings.
Avocet 44-tooth 144 BCD chainring. New, $50.00/each
New and ready for the road.
Close-up the the chainring teeth.
Here's some of Avocet's fancy chainring packaging.
Campagnolo Super Record compatible 42-tooth 144 BCD chainring. Used, $75.00/each
- Campagnolo part #753/A
- Produced 1970s & 1980s
- We aren't sure who made it.
Side 1
Side 2
Campagnolo Nuovo Record 45-tooth 144 BCD chainring. Used, $50.00/each
- Campagnolo part #753, made for Record 1049 crankset.
- This chainring was produced from the mid-1960s into the 1980s.
A classic, in lovely condition
Just as nice flipped over.
Campagnolo Nuovo Record 47-tooth 144 BCD chainring. Used, $50.00
- Campagnolo part #753, made for Record 1049 crankset.
- This chainring was produced from the mid 1960s into the 1980s.
From the business side
And flipped over
Campagnolo Super Record 52-tooth 144 BCD chainring. Used, $100.00/each
Front side
Back of the ring.
Close-up
Campagnolo Nuovo Record 54-tooth 144 BCD chainring. Used, $100.00/each
- Campagnolo part #753, made for Record 1049 crankset.
- This chainring was produced from the mid 1960s into the 1980s.
Front side, mild wear
And the back side.
Mavic Model 630 42-tooth 144 BCD chainring. Used, $65.00
All Mavic products are beautifully made, and this 42-tooth ring is no exception.
The flip side
Mavic Model 630 53-tooth 144 BCD chainring. Used, $65.00
Lightly used
The flip side
Specialized 52-tooth 144mm BCD chainring. Used, $35.00
Front side. Note it has a little peg to keep the chain from dropping down between the ring and the crank arm if you overshift.
Here's the back side of the ring.
SR 52-tooth 144 BCD chainring. Used, $25.00
Though not labeled SR, we believe this ring was produced by SR.
Side 1
Side 2
Stronglight Model 107 52-tooth 144 BCD chainring. New, $75.00
Part# 62170
Produced in the mid-1980s
Stronglight Model 107 52-tooth chainring #1. New, $75.00
Nicely finished
And just as nice from the back side
Stronglight Model 107 52-tooth chainring #2. New, $75.00
We believe this is a new chainring that came on a new bike and was traded out. It has been on a crankarm and a chain has been on it.
And here's the back side, just as nice.
Stronglight Model 107 54-tooth 144 BCD chainring. New, $75.00
Part# 62174
Produced in the mid-1980s
Side one.
And the flip side.
Sugino Mighty Competition 43-tooth 144 BCD chainring. Lightly used, $50.00/each
It has had some use, but not much
The other side is even nicer.
Sugino Mighty Competition 45-tooth 144 BCD chainring. New, $80.00/each
New and ready for the road.
Sugino Mighty Competition 48-tooth 144 BCD chainring.
We have two: New | Lightly used
Sugino Mighty Compe 48-tooth 144 BCD chainring. New, $80.00
New, still with its factory plastic sleeve.
And here's a close-up of just the ring.
Sugino Mighty Competition 48-tooth 144 BCD chainring. Lightly used, $40.00
Part# 62173/P
It has been ridden, but not much.
Flipped over, it's just as nice.
Sugino Mighty Competition 49-tooth 144 BCD chainring. Used, $40.00
Part# 62176
Classic design and execution. The letters have been painted in with red.
And here's the back side.
Sugino Mighty 52-tooth, 144 BCD chainring. Used, $30.00
We cannot be positive that this ring is Sugino production. It has been polished and lightened by having the inner web cut away so that there are no indentifying marks.
Front side
The same ring flipped over
A close-up showing where the inner web was cut away.
Sugino Aero Mighty 53-tooth 144 BCD chainring. Used, $40.00
Part# 62170
From the front
And here's the flip side.
Sugino Mighty Competition 53-tooth, 144 BCD chainring. New, $80.00/each
New, with its factory sleeve
Here's just the ring
Sugino Mighty Compe 54-tooth, 144 BCD 5-pin chainring. Used.
A classic.
The back side
Sugino Mighty Competition 54-tooth 144 BCD chainring. Used, $40.00
Part# 62174/P
While only moderately used, there are some scratches on the ring's face on the bottom of the picture. We have enhanced this photo so that the scratches show up.
And here is the flip side.
Sugino Mighty Compe 55-tooth, 144 BCD chainring. New, $80.00/each
SunTour Superbe 52-tooth, 144 BCD 5-bolt chainring. Used, $65.00
We believe this is a second-generation Superbe ring.
And here it is, flipped over.
Unknown maker 52-tooth, 144 BCD 5-bolt chainring. Used, $25.00/each
Side one.
The flip side.
Sugino 75 1/8" 50-tooth NJS 144 BCD track chain ring. New, Taken off new bike, $140.00/each
This chain ring is new, taken from a new track bike.
Ready for your track bike or fixie road bike.
The other side of the ring.
Close-up with the chainring's specs.
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