The easiest thing you could do to give yourself a bit lower gear is to change your rear cassette. You can get a 9-speed 11/34T SRAM PG950 for about $35. Your Local Bike Shop can likely sell and install the new cassette for $50.
I checked-out the Reline website. I then looked up the D660 from 3 seasons ago. You got a really nice bike for a good price. I like the 1x9 setup. There are not too many bikes with a single crank ring from three years ago. SRAM now sells a 1x11 for a small fortune. I am currently building a Chrome Moly 29er hardtail. The bike will be a 2x10 with some frightfully low gearing. The crank is 38/24T. The rear cogs are 11/36T. The low ratio means I have to do 1.5 crank rotations for one wheel rotation. I have this same setup and my Fat Bike and this is a really digger low gear.
•´¸.•´¨) ¸.•*¨) (¸.•´ .•´ ¸¸..•¨¯`-:¦: *Life is what you make of it... -:¦:-•:*'*:•.•:*'*:•-:¦:- and I plan on -:... ¦:-•:*'*:• making each day count!•:*'*:•-:¦:- . Thanks so much for your nice comment on my blog. It's amazing how much sparkfriends have helped me through this cancer battle. I wasn't going to blog much about what I'm going through, because I like to keep it positive and upbeat but, reading through blogs of others that have gone through this and are doing well have really helped and inspired me. Hopefully, my upbeat spirit and fighting attitude will inspire someone else going through cancer treatment or whatever their personal struggle may be. .(¯`´¯) Hope you have a sparktacular day :) .`•.¸.•´... ¸. (¸.•´ (¸.•´ Karen