Sorry if this is in the wrong place.
This May I brought a Scott Speedster 60 to do my commute, being my first foray into road bikes it seemed reasonable and it did not have bad reviews, given its price bracket et al. However, I have recently been having issues with my chain skipping on the cassette while pushing hard in the smallest gear (Shimano HG41-7 7 Speed 11-28 tooth, full spec here http://www.evanscycles.com/products/scott/speedster-60-compact-2013-road...). I tried at first to re-tune my gears, but to no avail, the cable and the stops were all correctly aligned, I then noticed while replacing a broken spoke that the smallest gear the teeth are very worn I must have only done somewhere in the region of 2,000 miles on it. So I was wondering what people would recommend as a replacement. I am not overly concerned about the mass of the replacement and the 11-28 tooth gives me an ok range but would prefer something more hard wearing.