PolarisB

Just found this review and the comments below and I think they're a bit late for me ;) Got my bike stock with the RF NEXT R 26/ 36 and use them for XC riding. Unfortunately every 200km or so the crank became loose. It was opened and serviced twice in a very reputable place locally...until...I brought the bike for a regular service and...it was found to be loose again, for the 3rd time. Since the bike were under warranty I insisted for the crank to be taken out and it was eventually replaced with a Shimano XT. I don't care if it's carbon or not and I would sure love to lose a few hunderd grams...but...most of all I just want my bike to work and not to worry about something as important as the crank.