Quote:
Originally Posted by NHAero
That's cool!
When you say 110/74, is it designed for a 2x set-up, such that the 110 is the large ring and the 74 is the small ring? And does the large ring mount to the inner or outer face of the spider?
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From what I can tell from the photos, it appears that these spiders are designed to use
Sugino's OX series Compact+ chainrings. If so, then the direct answer to your question is that both chainrings mount to the inner face of the spider, just like the middle and inner chainrings of a 110/74 triple. The outer chainring of Sugino's OX chainrings are similar to a 110/74 middle chainring. You could use an ordinary 110/74 middle chainring as an outer chainring on this spider, but 110/74 middle chainrings are typically only available in smaller sizes (34 - 38 teeth), so Sugino makes their OX chainrings in larger sizes (up to 52 teeth), and have added anti-chain-jam pins.
I had seen photos of the Engin spider before and was very interested in it, but I had heard that they were only available on complete bikes. If they are now available separately, I'll definitely be in line to get one.