Hi,

I have a scott ransom 40 (Link to spec 2008 Scott Ransom 40 - BikePedia),
I bought it second hand with a bash guard instead if the large chainring.
I now want to buy the chainring.

I read some in the internet about how to measure bcd.
The needed chainring is 104mm bcd 4 bolt pattern and 44 teath.

I read somewhere that Shimano Chainring might have a compatability problems.

Must i buy only an original truvativ GXP chainring or can i buy other chainring of a different brand?

I found on ebay a RaceFace Chainring with the same measurements, does anyone know if it can fit?
(ebay product link Race Face Evolve Chainring 44T 9 Speed 104 BCD | eBay)

Thanks