Smallest chainring for 157mm BCD?
I have a 3-arm crank (101mm BCD I believe). It has 2 steel chainrings that are riveted together and these chainrings are the common setup. Simplex made an adaptor so you can screw together 2, 6-hole patterned chainrings for "custom" setups (see picture below). This adapter is for a 157mm BCD chainring. I have seen 46 teeth chainrings that will fit on this but is there anything smaller? I've seen smaller TA 6-hole rings but I just found out they are a 152mm BCD.
http://images28.fotki.com/v1001/phot...SIMPLEX-vi.jpg |
I have aluminum 6-bolt 45, 46, 47, and 49T rings with 157mm BCDs. [I also have a 58T, for anyone who wants it for the $5 cost of shipping.] Looking at my 45T ring, I would guess 44T to be the minimum size, but I have never seen one.
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