Need help with bike size for a new bike
First, I have a Trek Soho 1.0 for bike commuting, and it's a perfect fit. But I baby the bike and don't take it on rough surfaces, through water, etc. It's a nice bike.
BUT, I want a bike for riding with the kids, across grass, through light dirt paths, etc., and I already know what I'm getting (for sure): A Trek Navigator. I've researched up and down the net, and that's what I'll get. Plus our local bike shop is absolutely outstanding in terms of customer service and lifetime maintenance (included). These guys are the only place I'll buy, and they sell only Trek and Gary Fisher products.
So, the Navigator 2.0 or 3.0, depending on how much extra dough I scrounge up.
The frame size on my Soho is 20-inch and is perfect. I am six feet tall on the nose, and weigh 205. Yep, I'm a little chubby, but not too bad. I need to lose about fifteen pounds or more.
Anyway, the Trek Navigator comes in 18-inch and 20-inch (the largest). The guy at the shop said to go for the 18. He said I was a bit hunched over on the 20-incher and should go a size down.
I've heard that it's better to go a little too small than a little too large. Is that true, and can anybody give me the lowdown on which frame size would be better for a six-foot person?
The guy at the bike shop didn't really spend a lot of time with me as I was out the door. I was in a hurry so they didn't get a good look at me on the bike.
Any advice is appreciated. Thanks.