I work at a Kona dealer. I did check with Kona just a couple days before this thread showed up. A similar discussion popped up in another thread which made we want to check with Kona to ask on behalf of a good customer of ours who was looking into a new fork. I specifically e-mailed Ed, the warranty man at Kona, and he said anything over what is spec'd on the bike will void the warranty. So, if you are planning on putting a 115 fork on there, you better kiss your warranty goodbye. He also said that even if you have a fork that had adjustable travel such as RockShox U-turn or Manitou's RWDT and you crack your headtube, then no warranty for you, even if you always ran the fork at 105mm or less. By the way, 105mm is the max for a Kikapu since some of the Kiks are spec'd with Marzocchi forks.