Toptube size?

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9/26/2018 5:39 AM

What size toptube should I ride if I’m 5,7?

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9/26/2018 5:40 AM

20.5 or 20.75

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I don't crash, I do random gravity checks...

9/26/2018 6:05 AM

^^^ THIS ^^^

But it's subjective. I'd say it also depends on your age (i.e. are you still growing, are you a tall 9 year old or a short 17 year old....). If you are still growing, you might think about something that might serve you better as you grow. However, if you are a tall 9 year old, your muscles might not be as developed for your height & you might have more trouble with a bigger frame.

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9/26/2018 6:10 AM

Mishinn_Control wrote:

^^^ THIS ^^^

But it's subjective. I'd say it also depends on your age (i.e. are you still growing, are you a tall 9 year old or a short 17 year old....). If you are still growing, you might think about something that might serve you better as you grow. However, if you are a tall 9 year old, your muscles might not be as developed for your height & you might have more trouble with a bigger frame.

Well I’m 14 and still growing so would I get about a 20.75?

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9/26/2018 6:30 AM

I'm 5'-11'' and ride a 20.5" comfortably...

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9/26/2018 6:32 AM

I'm 6' and can't ride anything shorter than 21". Like most things in bmx, it's personal preference. But 20.75 would be a good start imo.

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9/26/2018 6:38 AM

I'm 6'2" and have a hard time riding anything below 21"... and 21" is still pretty uncomfortable lol

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I don't crash, I do random gravity checks...

9/26/2018 6:39 AM

Mishinn_Control wrote:

^^^ THIS ^^^

But it's subjective. I'd say it also depends on your age (i.e. are you still growing, are you a tall 9 year old or a short 17 year old....). If you are still growing, you might think about something that might serve you better as you grow. However, if you are a tall 9 year old, your muscles might not be as developed for your height & you might have more trouble with a bigger frame.

DaltonBmx04 wrote:

Well I’m 14 and still growing so would I get about a 20.75?

Yeah go 20.75" maybe..

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I don't crash, I do random gravity checks...

9/26/2018 7:11 AM

I'm 5'10 ride a 20.85 that rides like a 20.5 and its perfect.

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9/26/2018 7:13 AM

I'm 5'8" and just switched from a 20.5 to a 20.75, not much difference but I've noticed my back doesn't start to hurt as easily as before. I'd say both will work for you, just choose based on what you're planning to do with it.

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9/26/2018 7:24 AM

Mishinn_Control wrote:

^^^ THIS ^^^

But it's subjective. I'd say it also depends on your age (i.e. are you still growing, are you a tall 9 year old or a short 17 year old....). If you are still growing, you might think about something that might serve you better as you grow. However, if you are a tall 9 year old, your muscles might not be as developed for your height & you might have more trouble with a bigger frame.

DaltonBmx04 wrote:

Well I’m 14 and still growing so would I get about a 20.75?

What's your family like, heightwise? If they are generally taller (5'10" & Up), yeah, the 20.75 would be where I'd start. If they are all about 5'9", I'd ride both sizes & decide that way (that's actually a good idea in any case). Right now, I'd say the 20.75 would be the way to go. I think you'll be fine either way. You can get used to riding anything if you just ride it regularly.

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9/26/2018 7:27 AM

20.5-20.75 if you're riding street/park

19.5-20 for flatland

20.75-21 for race/trails

but it's all prefrence

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fack off

9/26/2018 8:14 AM

I’m riding a 20.3 right now and want to get something bigger

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9/26/2018 8:14 AM

I'm 5'8 and ride a 21". Can lean back on the bike and manual easily.

I feel that TT doesn't really matter that much between 20 and 21 I notice 0 difference.
I also have a 22" and notice no difference in terms of room.



I really cant see how an inch + or - on the TT can really matter unless you are absolutely cramped on a 20" and hit the stem easy. I'm convinced its just a trend with frame manufacturers to offer a choice that really don't matter when the rest of the geometry is the same.

3 or 4 inches can matter though, so an 18" may be too cramped.

I found chainstay matters though, an inch there can make a difference. An extra inch can mean your tire needs to be a foot higher off the ground for a manual if you are shorter.

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9/26/2018 8:15 AM

Literally find the longest Toptube you can get, even if you can't reach the bars from the seat.

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9/26/2018 8:23 AM

Phunny93 wrote:

Literally find the longest Toptube you can get, even if you can't reach the bars from the seat.

Then you just attach the seat to the TT?




Photo

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9/26/2018 8:23 AM

I'm 5'8 and ride a 20" top tube with a 50mm reach stem. I'm currently building a 20.5" bike with a shorter stem as a hybrid flatland/everything bike. My flat specific bike have all been 19" or less.

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9/26/2018 8:37 AM

What would be yalls option on bar rise

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9/26/2018 8:38 AM

I’m looking at the odyssey lumberjack xl

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9/26/2018 10:23 AM
Edited Date/Time: 9/26/2018 10:24 AM

DaltonBmx04 wrote:

What would be yalls option on bar rise

Also very subjective. In addition to being subjective, other factors creep in such as front load, top load, bottom load stems, Fork steerer tube length/spacer stack-up height, etc...; If you are running a front load or bottom load stem, I'd say I wouldn't go over 9". Top load, and your height, I'd probably look in the 8" range. But, again, it's all subjective from rider to rider. Years ago, small bars (7" rise) were all the rage. Today, they are creeping up (up to 11" rise). I think 8-9" rise bars would be in your range depending on stem setup you want to run.

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9/26/2018 10:39 AM

21.5"TT
14" CS
74 HTA
7.8" Rise bars

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9/26/2018 11:20 AM

Phunny93 wrote:

21.5"TT
14" CS
74 HTA
7.8" Rise bars

They still make bars under 8?

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9/26/2018 11:33 AM

Phunny93 wrote:

21.5"TT
14" CS
74 HTA
7.8" Rise bars

eskimojay wrote:

They still make bars under 8?

i think standard does

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fack off

9/26/2018 11:41 AM

screamingtiger wrote:

I'm 5'8 and ride a 21". Can lean back on the bike and manual easily.

I feel that TT doesn't really matter that much between 20 and 21 I notice 0 difference.
I also have a 22" and notice no difference in terms of room.



I really cant see how an inch + or - on the TT can really matter unless you are absolutely cramped on a 20" and hit the stem easy. I'm convinced its just a trend with frame manufacturers to offer a choice that really don't matter when the rest of the geometry is the same.

3 or 4 inches can matter though, so an 18" may be too cramped.

I found chainstay matters though, an inch there can make a difference. An extra inch can mean your tire needs to be a foot higher off the ground for a manual if you are shorter.

TT length does matter, HT angle can make a huge difference, stem length/rise matters, bar geo matters, BB position matters...Its almost like it all matters. wink

If you cant feel the difference, it doesnt mean someone else cant.

Everyone has different size legs, arms, torsos, feet, firgers, etc. Different size frames make it possible to get a comfortable setup. I like that companies take the time to offer different sizes.

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9/26/2018 1:03 PM

screamingtiger wrote:

I'm 5'8 and ride a 21". Can lean back on the bike and manual easily.

I feel that TT doesn't really matter that much between 20 and 21 I notice 0 difference.
I also have a 22" and notice no difference in terms of room.



I really cant see how an inch + or - on the TT can really matter unless you are absolutely cramped on a 20" and hit the stem easy. I'm convinced its just a trend with frame manufacturers to offer a choice that really don't matter when the rest of the geometry is the same.

3 or 4 inches can matter though, so an 18" may be too cramped.

I found chainstay matters though, an inch there can make a difference. An extra inch can mean your tire needs to be a foot higher off the ground for a manual if you are shorter.

It absolutely matters and thats why frame geometry differs. You also need to consider that the rest of the geometry isn't the same, because actual lengths and effective lengths are different. Mounting points need to be different, butting needs to be considered, BMX frames and bike frames in general are items were geometry is compounded. The changing of one angle usually affects the others.

I rode a 20.8 TT for 5 years. Once I started taking things seriously I felt very limited by that frame. I got on a 21.25" and instantly felt more comfortable and capable on a bike. After 2 frames with very different geo, I've found a 3rd Frame that fits me and my riding style perfectly.

So like bullet said, if you can't feel it, that's fine but many people literally cannot ride something that doesn't fit them properly.

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BMX over 30: Eat clean, Stretch, and Pray.

9/26/2018 1:27 PM

Smaller frames and bigger bars have always worked out well for me . Downsizing frame soon and potentially raising my front end again but thats debatable

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Instagram : braydenbuckingham
My Cult 2 Short

9/26/2018 4:46 PM
Edited Date/Time: 9/26/2018 4:49 PM

I’m really looking into the Sunday nightshift in 20.75 but If it doesn’t feel right could I send it back?

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9/26/2018 4:53 PM

No you can’t send it back when you ride it.

I ride 20.6 at 5’9

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45 refs and counting check profile.

9/26/2018 4:55 PM

I’ll probably just get a 20.5 then

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9/26/2018 6:41 PM
Edited Date/Time: 9/26/2018 6:43 PM

DaltonBmx04 wrote:

I’ll probably just get a 20.5 then

Your hight, I would not go under 20.75 if you are going to run bars 9inch and up.
With today's chainstays getting shorter and the use of taller bars, If a frame had say a 13.25 chainstay. I would jump up to a 21inch top tube to gain some wheelbase back.

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