New user here. I thought I'd chip in, I picked up a RC 520 a couple of weeks ago.
I'm quite new to cycling, did a lot of running running and some MTB but developed hip problems so decided to try road biking. I borrowed a Cannondale CAAD8 105 from my very experienced dad-in-law (though it was XL, two sizes too big for me) to try it out and... I liked it.
I'm not interested in racing or ride road socialising, just the time on my own, the excercise and commuting. I have a 13 mile commute, 60% rural and 40% city/urban which is now taking me 45 minutes, straight through the centre of Oxford. Only 10 mins slower than taking my motorbike, so a pretty efficient use of time.
The CAAD8 served me well but it didn't fit that well. I also wanted to give my dad his winter bike back. Half of my commute is on very bad quality rural roads so I wanted to get something that can take big tyres, also so I can maybe fit something slightly offroad and use the bridleway network to vary my route. I also wanted disc brakes. Stopping quickly with so many moronic drivers around is important, especially in the wet; I'm not shy of bad weather. I found the rim brakes on the CAAD8 very poor compared to my MTB brakes, so there you go. I'm not bothered about brands but wanted quality componentry. I don't care about weight, a number that seems to be hugely over-rated by the cycling community and I wanted an aluminium frame. So the timing of the RC 520 release was perfect for me. I tried one out in-store and couldn't find anything that came close for a similar spec and price. My employer uses a CtW scheme but it's barely worth using so I scrapped that idea.
I've now done about five commutes (26 miles round trip) and two longer rides (30-40 hilly miles each). My very inexperienced review:
What I like:
- It's comfortable, no weird aches and pains so far.
- The shifting is excellent, a bit different to the older 105 I was used to.
- The brakes are excellent after bedding in, it took me two commutes.
- The gear ratios seem to suit my riding better than the CAAD8.
What I don't like as much:
- The bar tape is double wrapped and I can barely get my hands around it.
- Front deraillier setup slightly off but easily fixed.
- Very slight 'tinging' noise from the front disc when accelerating quickly. It's fine, probably fixable.
- I can't downshift on the rear when on the drops. Not sure why, I could just about stretch it on the CAAD8.
- It's just geometry, but I can just about catch my front wheel with the tip of my toe.
I'm really enjoying the bike and it fits my needs perfectly. Just a couple of very minor niggles I suppose. Overall I think it's incredible value for money. To top it off, I ride past a Decathlon on my way to/from work so any problems, I'm sure it'll be taken care of.