Perhaps the side plates on the new chain are slightly narrower and a minor readjustment of the front derailleur high limit screw is in order. The adjustment needs to be just loose enough to permit crisp shifts to the large ring and no looser. Adjust/test the upshift by pulling on the shift wire like a bowstring as advised in this procedure: http://www.parktool.com/blog/repair-...ur-adjustments It would probably be prudent to go through the whole procedure from the beginning since other minor adjustments may be needed due to the new chain.