General Cycling Discussion - Exercise on BMX/Mountain Bikes?

Looking for some info on what's the best or advice on the differences between BMXs and Mountain bikes.

I own a mountain bike but as a kid, I loved my one-gear bike which I found I was the one doing the most workout going uphills, whereas my friends had mountain bikes and had ease getting up huge hills. And generally I liked the feel of being always in one gear going fast and doing jumps.

Anyway, I know this defeats the purpose of a mountain bike, but the majority of the time I'm always on the mid-highest gear - lower RPM on flats and hills as I love working the muscles.

Would you get as much workout on a BMX compared to a Mountain Bike or really makes no difference?

http://www.konaworld.com/29er_singlespeed.cfm?content=unit

If you're going to be "mashing" in high gears, watch your knees. Pushing your way up a hard hill puts a lot of strain on your knee joints and may cause you to develop long-term injury over time, especially with the typical riding position on a BMX. The advantage of having multiple gears is to save wear and tear on your joints by making cycling an aerobic exercise (think swimming) rather than a weightlifting one, and builds up your knee support tissues gradually. Most single-speed mountain bikes have much lower gearing than their on-road counterparts. From my experience, when I switched from my SS road bike to a geared one, the amount/distance I did went way up, which definitely increased the equivalent "exercise" I got.

You can convert your current bike to SS on the cheap.

http://boston.craigslist.org/gbs/bik/2984336525.html


Tom

You can convert your current bike to SS on the cheap.

Tom

even easier than that-don't shift.

Ok, scrap that. I went for a ride in the bush and had an awesome time. Why I never did this before is beyond me.

Cheers guys for the responses :)

What?