Good luck winter, and welcome to the forum. This is probably the funnest little hobby i've picked up in my lifetime. If you need any help, don't be afraid to ask. Everyone here is usually very willing to troubleshoot just about any problem. I've posted several times starting back when I was new at this asking for help with some sort of problem I had. Enjoy your new bike.
Dovie'andi se tovya sagain. (It's time to toss the dice.)
-Spoken by: Matrim Cauthon
In the book series: The Wheel of Time
Author: Robert Jordan
question: ist the chain tenisoner/wheelguide, nessary? my chain doesnt have much slack so it seams that adding the cheepo chain wheel tensioner/guide would be pointless
Unfortunately, the tensioner is a necessary evil. There are some upgraded ones you can get from SBP or bikeberry or some other places for pretty cheap if you don't like the stock one, which most ppl don't. Here is a thread that may help...