I got a fixed gear about 2 years ago and never rode it very much, but have been riding about 5 days aweek here for a month or so and am loving it and want to keep up with cycling. (can't surf much anymore)

I have pretty much all Eighth Inch components (Frame, Crankset, Cog, Wheelset) and then Origin8 (Pedals and Bars) my frame is a bit small for me 56CM and I'm 6'2 but I pushed the seat back as much as possible and have a 100mm Stem (might upgrade to 120?)

Riding is alot of fun, but it seems a bit hard like I need a a new cog to make things a bit easier on my legs. Currently I'm riding a 48:15 as the bike came stock, but am looking at 16t and 17t cogs. I'm leaning towards 17t cause I've heard good things about this ratio.. I don't want it to be too easy, I'm in FL where it's pretty flat except for bridges and am also riding around just for fun/fitness. I also run a front brake.

Also if you have any other advice as far as upgrades please let me know! I'm thinking of ordering a 120mm stem so I'm stretched out a bit more because the frame is a bit small, but my current stem is 26mm so I might have to order new bars as well.

THANKS so much!!!!

SUMMARY: 48:15 vs 48:17 ??? (or maybe 16t!)