I run 1x9 on my rock lobster and have been through the issues you're asking about.
I went for a single speed Hope chain-ring but was still loosing my chain on really bumpy stuff (it's rigid too) so started looking at chain devices.
When I saw the prices, I just fitted an old front mech and fixed it in the desired position using the stop screw.
A bit gypo, but it works a treat
I went for a single speed Hope chain-ring but was still loosing my chain on really bumpy stuff (it's rigid too) so started looking at chain devices.
When I saw the prices, I just fitted an old front mech and fixed it in the desired position using the stop screw.
A bit gypo, but it works a treat