I went on a ride a few weeks ago on a climb that can reach over 15% at points, very tough, rattlesnake point if anyone lives near me. Anyway, I tried climbing it, and at about half way up, my legs got tired, so I stood up, and almost immediately it felt as if my pedals/cranks were turning but my wheels/chain weren't, kind of hard to explain. So I just unclipped as there was a car behind me and I wanted to avoid an accident and decended. I assumed it was nothing, but now every time I go up any climb, however steep or hard, whenever i push hard, it does the same thing. Feels/sounds like two peices of velcro or medal scarping againt each other.
What could this be, possibly to much pressure? And what should I do about this?
I will be getting a new crankset for my first racing season next year as mine are apparently to big for me (16 years old - 34/50t), but for now through next year I will most likely be dealing with it.
Here's a link to the specs if needed: http://www.raleighusa.com/archive/20...revenio-30-11/