20" vs. 20.5" frame

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4/13/2015 7:39 AM
Edited Date/Time: 4/13/2015 7:41 AM

Hey guys I'm looking to buy the S&M ATF frame but the size is 20.5" I've always ridden 20" frames so I was just wondering if there would be a huge difference between the two, plus pros and cons if there are any. I'm 5' 9"

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4/13/2015 7:47 AM

I've ridden 20.5" 21.5" and 21.25" i like the longer TT length because My knees don't constantly slam against the stem and bars. Thats the only reason, I don't notice any difference in performance or handling. When I was riding a 20.5" and the 21.5" in rotation, switching to the 20.5" after riding the 21.5" hurt my lower back for the first day of riding. Going from the 20.5" to the 21.5" didn't.

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4/13/2015 9:11 AM

20" is really short, for your height I recommend 21" or bigger.

The main difference you'll feel is you'll be alot less cramped on your bike, an appropriate top tupe lenght and a good bar height adjustment can considerabilly make you feel more comfortable.

To try the feel of a longer toptube, you can still move your bar forward, it will feel weird (more weight on front end) but you'll get a good feeling on your back.

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4/13/2015 12:24 PM

20.5 is going to feel loads better for you that a 20"

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4/13/2015 2:43 PM

i'm 5'11 and ride 19.5....lol

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It’s all bmx

4/14/2015 7:08 AM

yay thanks for the help guys

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4/14/2015 7:59 AM

adamnmexican wrote:

i'm 5'11 and ride 19.5....lol

flatland hipster lol

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4/14/2015 8:38 AM

Go at least 20.75 your going to break a kneecap on your stem

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