Dual Ring Chain guide using Outer and middle ring
I know e.thirteen makes a chainguide that replaces your outer chainring, but allows you to use your inner and middle rings (i assume it mounts through the bashguard). However, I constantly use my Outer chainruing, but almost never use my inner chainring. Is there a dual-ring chainguide that replaces your inner chainring, rather than your outer one? If not, I've got some letters to write to a few companies.