5'7 21 or 20.75 toptube?

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Nick Peterson

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11/28/2011 4:33 PM

So I'm 16 and 5'7, and I'm getting a new frame in the next week or so an I was wondering if I should get a 20.75 or 21. I ride mainly street an park, sometimes I ride trails. What size should I get?

Just ride.

premiumallday

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11/28/2011 4:35 PM

20.75

eskimojay

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11/28/2011 4:53 PM

21 if your 16 you still got room to grow.....im about the same height maybe 5,8 and 21 feels great

bmx4orlife

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11/28/2011 4:56 PM

Its all personal preference... i ride 20 .5 and im 6' i like how compact it is and it feels more responsive... for street if your doing gaps i would go with something longer but ur question should be 20.75 or 20.5... so if you do gaps and that kind of stuff (or if you rode more trails) i would go with 20.75 but if your more of a tech rider (nose mannys, mannys,) that kind of thing (think garrett reynolds...) then u should probably go for 20.5 but 21 will be way big for you....


but like i said before it is ALL PERSONAL PREFERENCE

I have nothing against pegs at all, I don’t think you’re dumb if you ride pegs, I don’t care about your pegs, they are just pegs! What I do hate is the fact that every person in BMX hops on this bandwagon of three pegs, and beanies, and weed, and hop-over grinds… It’s just sad that the pros who influence kids are more worried about looking cool than the kids themselves! It’s crazy!-Trey Jones

eskimojay

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11/28/2011 5:02 PM

i rode a 20.5 ltf before....smashed the hell out of my knees....then moved to a 21 best switch ive made.....ive rode 20.75 frames before didnt feel as good as 21....but it is all personal preference

Warchol2

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11/28/2011 5:07 PM

blah blah personal pref everyone knows the deal, id say you are between 20.75 and 21, im 5 10' maybe 11' and i ride a 21 now and just had a 20.75, if you want to feel like you can manhandle your bike do a .75. if you like flowy and bigger stuf do a 21

im sorta on a "short" 21, cuase i habe a 69 degree seatube angle, so it feels longer but controlls shorter, manybe look into one of those, like a villicus

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tankbob

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11/28/2011 5:11 PM

Im 5'7" and I ride a 20.5 but Id get a 20.75 if I got a new frame. Its all personal preference though, do you like the size you are riding now?

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Nick Peterson

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11/28/2011 5:26 PM

right now im on a 20.75 an i would rather go 21 if i am still growing since im only 16 all my friends say go 21 an im getting a fit wifi if that helps im not sure but can the headtube angle effect how the top tube is measured cuz its a 75.5 headtube and 71 seatube

Just ride.

WildBycyclist666

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11/28/2011 5:41 PM

5'5 over here and I ride 20.5 but yeah it's just personal preference.
I like to ride a responsive setting oh and thank god for my G-Form knee pads..

lukegoh13

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11/28/2011 6:24 PM

I ride 20 and and am 5'7

I've ridden a 20.75

I now know I want a 20.5

At the end of the day, if your not restricted by trend and bike looks, you can always move your bars forward so they aren't inline with your fork to gain 1 to 2 inches! (any more than 2 inches will effect handling in a bad way prolly)

Obama

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11/28/2011 6:35 PM

6'4 riding atm a 21 mothership just ordered my fit mac in 21.125 i like my frame size and i have a 54mm stem so i dont hit my knees

bmx4orlife

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11/28/2011 7:41 PM

Nick Peterson wrote:

right now im on a 20.75 an i would rather go 21 if i am still growing since im only 16 all my friends say go 21 an im getting a fit wifi if that helps im not sure but can the headtube angle effect how the top tube is measured cuz its a 75.5 headtube and 71 seatube

o i hadnt realized you already had a longer toptube.. i say go with a 20.75 i figure tyou had a 20 inch

I have nothing against pegs at all, I don’t think you’re dumb if you ride pegs, I don’t care about your pegs, they are just pegs! What I do hate is the fact that every person in BMX hops on this bandwagon of three pegs, and beanies, and weed, and hop-over grinds… It’s just sad that the pros who influence kids are more worried about looking cool than the kids themselves! It’s crazy!-Trey Jones

lukegoh13

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11/28/2011 7:54 PM
Edited Date/Time: 11/28/2011 7:56 PM

Obama wrote:

6'4 riding atm a 21 mothership just ordered my fit mac in 21.125 i like my frame size and i have a 54mm stem so i dont hit my knees

is that frame totally different in geo from your other one? Maybe you just fancied a new ride? I would just nudge the bars forward to get .125 of an inch

And yes, getting the longer stem reach is a good move for you tall people!

bmx4orlife

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11/28/2011 7:57 PM

lukegoh13 wrote:

is that frame totally different in geo from your other one? Maybe you just fancied a new ride? I would just nudge the bars forward to get .125 of an inch

And yes, getting the longer stem reach is a good move for you tall people!

yeah he said he just wanted to try something new... and i thiught the SA was like 69 on the mothership and 71 on the FIT

I have nothing against pegs at all, I don’t think you’re dumb if you ride pegs, I don’t care about your pegs, they are just pegs! What I do hate is the fact that every person in BMX hops on this bandwagon of three pegs, and beanies, and weed, and hop-over grinds… It’s just sad that the pros who influence kids are more worried about looking cool than the kids themselves! It’s crazy!-Trey Jones

louie101202

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11/28/2011 9:42 PM

21 inch

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bmxfromma

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11/29/2011 12:12 PM

im about 5' 10 and a 20.75 feels just right for me

Honestly? Who gives a shit. Its the fucking internet. I hate all of you equally.
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kevinstreetbiker

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2/22/2012 9:39 AM

Obama wrote:

6'4 riding atm a 21 mothership just ordered my fit mac in 21.125 i like my frame size and i have a 54mm stem so i dont hit my knees

lukegoh13 wrote:

is that frame totally different in geo from your other one? Maybe you just fancied a new ride? I would just nudge the bars forward to get .125 of an inch

And yes, getting the longer stem reach is a good move for you tall people!

a longer stem whill affect on the handeling and is not so good for barspins.

tinybikerider33

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2/22/2012 9:42 AM

I used to ride 21" TT exclusively, because I'm 6' 1". My new bike is a 20.9" TT with a 53mm reach stem and 25 degree offset forks, and it feels awesome. Spin tricks are SO easy.

Ride what feels comfortable and suits your riding style. My first frame was a 21", and I was only 5' 8" or so.

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metalheadification

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2/22/2012 10:28 AM

im 6 2 on a 20.75 and could use some more room, i hit my knees on the bars on landings and theyre a little past vertical

I put my spoke in her while I twisted her nipple.

-Havok-

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2/22/2012 12:02 PM
Edited Date/Time: 2/22/2012 12:03 PM

I'm 5' 10" and feel pretty comfortable on my 20.75" and running my bars straight up vertical. I'm running a TL stem right now, but I think a frontload will make all the difference as far as my knees being close to the bars, and possibly the length too. Like Warchol2 said, I like being able to manhandle my bike, but I have thought about picking up a 21" frame just to mess around with and see how I like it.



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Nike iD

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2/22/2012 1:26 PM

Fuckk, I read half this then realized its like 3 months old.

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kink288

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4/15/2013 6:18 PM
Edited Date/Time: 4/15/2013 6:19 PM

is a 20.75 like way bigger than a 20.5 and will it be heavier
i like to free ride mostly

Four

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4/15/2013 6:20 PM

kink288 wrote:

is a 20.75 like way bigger than a 20.5 and will it be heavier
i like to free ride mostly

This thread is old man, but not it's not too much bigger but you will notice a different. And it will be a few ounces heavier no big deal man.

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Aav1996

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4/15/2013 6:35 PM

Since that's your first post we should let this one slide..... but for future reference it is frowned upon to "ressurrect" threads

Brayden_Buckingham

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4/15/2013 7:47 PM

20.75 is a good midway. Up too you. I like having it bigger than 20.5 but still having decent control. I think 21's are for more room, I like being with my bike ; 20.75 for me.

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4/15/2013 8:28 PM

I'd say get a 20.5