Originally Posted by
GriddleCakes
Thanks! Bike is set up with Nashbar CR2 cranks, running a Salsa Crossing Guard in place of the outer ring, and a 42 tooth Salsa chainring for the inner ring. Chainring is a regular 8/9/10 speed ring, as far as I know. Chainline is straight in 5th gear.
I had a chain catcher when I set up my Nashbar cross bike, 3rd Eye's Chain Watcher, I believe, but the chain never tried to jump as far as I could tell. I removed it to increase clearance between the fender and the tire, and still never had trouble with the chain jumping. Maybe I'm just lucky, but it worked fine from the beginning.
Thank you for the prompt response GriddleCakes.
I've been planning to run 1x9 setup on my hybrid (46t x 11/28t) for simpler and cleaner setup. As I found that so far with triple chainring upfront I spend 99% of the time on the biggest chainring (48T). Yes, it's more of a road/commuting hybrid, not planning to hit the trails for as far as I can see. But when I talked to my LBS, they always warned me of the 'chain jump' issue and advised me to get a whole set of chain device (costing . I found this solution to be too 'elaborate' for a 'simple' setup. Some manufacturers (like SRAM, RaceFace, Blackspire, etc) have come out with narrow wide chainring to prevent the chain-jump, but for 104mm BCD like my Deore crank, they only have up to 38T. So from your input, along with others' from this and other forums, I think I will try out the Blackspire Epic Downhill ring (
Blackspire - Downhill Chainrings | Blackspire) on the inside, and a bash ring (guard) on the outside. Will update you guys when I complete the conversion.