I own and commute on a 2009 KHS Flite100, bought used. Since purchasing it, I have spent around $250 getting it up to scratch, with new tires, pedals, saddle, and other small but worthwhile upgrades.
Recently, I have noticed a rattling noise coming from the rear hub whenever I pedal. I have not been able to replicate this noise at the bike shop, but after a quick inspection I have been told that the hub has been overtightened, and will need to be disassembled. This will take my bike, used for daily commutes, out of commission for a couple of days, and cost me an estimated $50. That being said, I suspect that the problem is going to, in the end, cost me a new hub.
It seems to be common knowledge amongst cyclists that the most worthwhile major upgrade for a bike is a new set of wheels. Unfortunately, while the value and quality of standard road wheelsets has been well documented by various reliable sources, there seems to be very little information pertaining to track, or single speed wheelsets. I am finding it very difficult to separate genuine quality upgrades from primarily aesthetic ones.
My bike came stock with a pair of Weinmann DP17s and unbranded hubs. I would like to know if it is worth upgrading the wheels instead of having the hub rebuilt, and if so, what I should buy. I would prefer to pay less than $250, but I can (sort of) justify paying more if it's going to have a significant improvement on the general ride quality of my bike.
Any input is greatly appreciated.