55t Aero chainring 130bcd options

Triathlon Forum
1

Looking to jump from 53/39 to 55/42. Having difficulty finding chainrings with 130bcd to use on my Quarq PM. I have the Sram Red Quarq with the hidden bolt. I have found a few 56t options, but not sure I want to go that big. Anyone have any suggestions?

Thanks in advance.
Dirk

2

Garbaruk
PCD
Alugear
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3

Garbaruk
PCD
Alugear

I used to run a Garbaruk. Another vote there. Also can get almost any color anodize you can think of.

4

Thanks for the suggestions. Looks as if Garbaruk and Alugear only offer 1x. PCD had some 2x but not a 55t.

5

Other than the chain catching pin is there any other reason to use something other than a standard 130 bcd 5 bolt?

6

As long as your derailleur hanger will accommodate a 56, and your chainstay will clear a 56, and you’re not trying to run a too-small inner ring, there’s little downside to a 56, or even a 58, over a 55.

eta: I happen to have a very lightly used 55T 5 bolt 130 BCD SRAM aero chainring I’m highly unlikely to ever use again. If you’re interested, shoot me a PM with your email and we can discuss pricing/shipping, etc…

7

I just mentioned the hidden bolt as a detail on the crank I have. Did not mean to make it sound as a requirement. I am having difficulty finding a 55t ring for non hidden bolt as well.

8

I’ve not dealt with this type of crank before and didn’t know if there were any other differences.

There is a 54 SRAM chainring that looks like new on Ebay as well as a used 55 Vision with some wear. I didn’t know if the pin would be a deal breaker and/or if you can remove it.

I have a 54 SRAM on one of my bikes, I can look to see if the pin is removable.

9

I may end up going to a 56, but hoping for the 55 to stay slightly closer to the sweet spot on the cassette on flatter courses. May just need to buy a different cassette to help with that.

10

Looking to jump from 53/39 to 55/42. Having difficulty finding chainrings with 130bcd to use on my Quarq PM. I have the Sram Red Quarq with the hidden bolt. I have found a few 56t options, but not sure I want to go that big. Anyone have any suggestions?

Thanks in advance.
Dirk

I have this for sale. Light use (~800 miles) on my 650c TT bike, ended up going to a 58T. PM if you’re interested.

DSCN4790.JPG

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Stronglight - Time Trial CT² 130 mm Type “S”
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