I agree with Paddleboy17, I would switch out the front crank. I have a Race Face Crank, not cheap, but I really like the gearing. 24,34,46. I was climbing the Barge Canal Bridge, in Florida, a mama of an incline and a very narrow shoulder. With big logging trucks speeding by, one needs to have control, especially with full gear. I feel one can never go too low. 4.5" is another gear. I was glad I had a 19.5" gear. You might have to increase your cadence, but climbing at 4.5-5.0 mph all day and saving your knees is worth it. FYI, on the way down, I could have hit 40 mph, but 30 mph was my limit with full gear. On my last bike, I had a 26, 44, 50 crank and the setup I have now shifts better and is a better ride. That's my 2 cents.