Excellent Merida are my specialist subject,Do NOT drop to the 300 model you lose so much and only save a few quid,the fulcrum wheels and 22speed 105 are worth it alone,and the 6066 alloy frame is a higher grade most bike makes don't even use way above 7005,and 6061.I hope your thinking of the black pink lampre model its sexy...lol,I can help you with the sizing as I've dealt with loads,they come up bigger than most,,what height,inside leg are you?.....out of interest this models in my local at £849!