Last night I pulled away from a set of lights, put me foot down in 1st, went to change to 2nd and the clutch pedal became suddenly very stiff and she didn't wanna go anywhere! She now slips if you give it too much throttle and the pedal takes alot of effort to move and just bounces back into place forcing ya foot off the pedal!

Any ideas what this could be? Ive only just put the box back in, but it looks like she's coming out again this weekend

Its an Alcon 6 paddle clutch thats only done around 600miles