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demo 9
12-16-2007, 09:25 PM
ok, after my previous post i decided that simple bikes it is.
since its custom Geo i need a little help.

this is what i know[U]
14mm axle
15inch chainstay
9.75 to the top tube
euro bb

[U]this is what i dont know
head angle
everything else


bottom line is that i am tryin to make a mtBMX

Stoked
12-17-2007, 09:21 AM
why euro? are you running gears?
what size wheels?

Pesling
12-17-2007, 10:51 AM
A good universal geo is something like that:
Top Tube 560 til 570mm
Chainstay: 390 til 410mm
Headangle 69 til 71 degree
low seattube 11-13"

dexter
12-17-2007, 11:33 AM
ok, after my previous post i decided that simple bikes it is.
since its custom Geo i need a little help.

this is what i know[U]
14mm axle
15inch chainstay
9.75 to the top tube
euro bb

[U]this is what i dont know
head angle
everything else


bottom line is that i am tryin to make a mtBMX

gears? if not run a spanish bb way way better. sized wheels? w/ 26's your rear end will feel flexy as hell with that short of seat tube. w/24's you would be golden.

if i were building up a 24 specific park bike again me geo would be

14.75-14 stays
72-73 degree head angle around a 63mm 4x or rebate parks
14mm rear axle, bb inline with dropouts
internal headset, internal cable routing
10 in seat tube
and 23 in top tube

DirtBag
12-17-2007, 11:33 AM
Save time and money and get a BlkMrkt Riot. Perfect geometry, $400 and has everything you described. As long as you run only a SS. If you want gears then nevermind. Why 14mm axle?

My Riot is basically a 26" BMX bike.

demo 9
12-17-2007, 02:00 PM
i am using 26 inch wheels and i am lookin for the most BMX frame ever, i want 14mm axle so i can run pegs and have a micro drive train. i figured i would also make the seat tube really low, (cru jones*wink*wink) and try to have it like a bmx but bigger

sittingduck
12-17-2007, 02:50 PM
ok, after my previous post i decided that simple bikes it is.
since its custom Geo i need a little help.

this is what i know
14mm axle
15inch chainstay
9.75 to the top tube
euro bb

this is what i dont know
head angle
everything else


bottom line is that i am tryin to make a mtBMX
15" chainstay with 26" wheels will limit you to just a few frames.

DirtBag
12-17-2007, 02:51 PM
If you are ging to run pegs on a 26" what are you going to do for a front peg? Bolt on fork/hub? Suspension fork or rigid? Just curious..

Cru Jones
12-17-2007, 02:54 PM
If you really want one like mine, you can see the geo right here...

http://www.ridemonkey.com/forums/showthread.php?p=2427559#post2427559

Also, like Don said, I would at least go with a Spanish BB. If I were to do it over again, I would probably go with a Mid.

ThePriceSeliger
12-17-2007, 02:55 PM
Whatever Dobermann uses is what you want. Amazing!