Dirt Jump Bikes. any bike welcome as long as its dj or street

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Dirt Jump Bikes. any bike welcome as long as its dj or street
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Posted: Sep 29, 2013 at 13:14 Quote
Not sure on year but it's the current design.

Going to be baby blue/black/gold.

Posted: Sep 29, 2013 at 13:14 Quote
willy94 wrote:
New seat, bars and fork on the bike, weight should be about 20.8 w/brake now haha
Revelation?
Rad. I can't wait to see it dude!

Posted: Sep 29, 2013 at 13:47 Quote
p3dirtjumpernz wrote:
willy94 wrote:
New seat, bars and fork on the bike, weight should be about 20.8 w/brake now haha
Revelation?
Rad. I can't wait to see it dude!
yup, suprised how light that fork really is. Bumping up the a2c a little to slack it out and have the actual geo i had done, and put low bars back on, although that might be temorary.

Posted: Sep 29, 2013 at 18:57 Quote
my cannondale chase, rockin some supra bh's

Posted: Oct 2, 2013 at 14:29 Quote
Riser2012 wrote:
My babe
Love it

Posted: Oct 2, 2013 at 14:34 Quote
That looks a lot better than i thought it would. I liked the white forks and shizz, but this turned out way better.

Posted: Oct 2, 2013 at 15:05 Quote
Almost there, sorry for the crappy pic. Will probably trim the seatpost, and have it together by Friday night. Trimmed the bars 2" going to wait for a couple rides to see if it needs more trimming.


Posted: Oct 2, 2013 at 15:11 Quote
Pretty sick. I dig those see through cranks and pedals. Adds a nice touch.

Also speaking of....out of curiosity why do some people use small cogs on front and back? Wouldn't that just mean you can't gain as much speed? Unless pumptrack is the goal.

Posted: Oct 2, 2013 at 15:20 Quote
Creegz wrote:
Pretty sick. I dig those see through cranks and pedals. Adds a nice touch.

Also speaking of....out of curiosity why do some people use small cogs on front and back? Wouldn't that just mean you can't gain as much speed? Unless pumptrack is the goal.

If you use a small (12t for example) on the rear, you must also reduce the front, to say 28t, in order to keep the gearing similar.

average gearing follows:

bmx is like

25-9
28-10
30-11
34-12
36-13
38-14
42-15
44-16
mtb

28-12
30-13
32-14
34-15
36-16

Obviously you can run different and its all personal choice and what you like, for example i used to run 29-12 mtb, whereas my friend runs 32-12

basically, bigger front = bigger back to match and smaller back = smaller front and vice versa

Posted: Oct 2, 2013 at 15:37 Quote
simply putting it:

bigger on the back is softer

bigger on the front is harder

and smaller is the opposite.

Posted: Oct 2, 2013 at 16:33 Quote
Views: 1,209    Faves: 15    Comments: 6
this has some relavance to.this thread I believe haha

Posted: Oct 2, 2013 at 16:33 Quote
ryanme wrote:
If you use a small (12t for example) on the rear, you must also reduce the front, to say 28t, in order to keep the gearing similar.

average gearing follows:

bmx is like

25-9
28-10
30-11
34-12
36-13
38-14
42-15
44-16
mtb

28-12
30-13
32-14
34-15
36-16

Obviously you can run different and its all personal choice and what you like, for example i used to run 29-12 mtb, whereas my friend runs 32-12

basically, bigger front = bigger back to match and smaller back = smaller front and vice versa

Thanks for the reply. Smile It's been something I've thought weird for a while.

This image just reminded me of the question.

Posted: Oct 2, 2013 at 16:40 Quote
My favourite ratio, 22-13


 
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