JBTS

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jax
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JBTS

Post by jax » Friday 16 January 2009, 21:20

Hi
I've just used a 5mm steel cord instead of the long bolt preventing it to beat on the BTS
Will it work?
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leeho730
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Post by leeho730 » Friday 16 January 2009, 23:03

I know what you mean!

I have shaven some of the parts (marketd red) to make BTS kit flex more.
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The Blitz
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Post by The Blitz » Saturday 17 January 2009, 10:17

leeho730 wrote:I have shaven some of the parts (marketd red) to make BTS kit flex more.
It's seems this is THE same problem like original RAB !
You bought a system that you have to tune, where is the progress ?

Check the Simon's SAB on this forum, free of use...

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starikashka
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Post by starikashka » Saturday 17 January 2009, 14:05

Yo jax!! man...good idea. You broke the shaft, or you not like forward lean of your boot?

This BTS now is limited in flex adjustments. But do not think this will last less than original shaft.

leeho..now your tracks bent more?
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leeho730
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Post by leeho730 » Saturday 17 January 2009, 14:39

Yep, it kinda bends more.

I used BTS kit with yellow springs, and shaved some parts to make it a bit more flexible.

When you look at the bottom part of BTS, you can see that I've shaven some part...
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011.avi_000002500.jpg
Track 700 + BTS (yellow)
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starikashka
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Post by starikashka » Saturday 17 January 2009, 15:33

Leeho :-) perfection does not have a limits :-) check this out.
Image
http://carving.noredirectionallowed/HTML/bt2.html
This is a result of some plastic surgery for deeluxe indy. Author of this is also on this forum. memberlist.php?mode=viewprofile&u=1601

I do not see advantages on your picture. Maybe it needs to be shown differently. But what you have done could be useful for a main shaft to make sure it will not be broken.
i`m learning

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leeho730
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Post by leeho730 » Saturday 17 January 2009, 15:44

The picture you posted is to make indy flex more when extending the knees. You can see that after tuning, a rider would be able to extend knees more freely because shell would become more flexible on heelside movement.

Track 700, on the other hand, does not need tuning for that... it is already as flexible as indy after tuning!

My tuning is primarily focused on providing more flex when bending knees, by removing as much interference as possible.

What I've noticed on BTS kit was that thick spring and shaft somewhat limited flexing of the boots, so after shaving the parts to make more room for springs, the boots could flex more.

Below is the movie clip of Track 700 after tuning...

http://serviceapi.nmv.naver.com/flash/N ... f531b10e29

And personally I do not believe that shaft can be broken... it's quite strong!
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011_2.JPG
Track 700 + BTS in full extension
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starikashka
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Post by starikashka » Saturday 17 January 2009, 18:17

leeho730 wrote: The picture you posted is to make indy flex more when extending the knees.
No, this modification was made to get more of forward lean. You can spot the difference - left boot has been modified.
leeho730 wrote: And personally I do not believe that shaft can be broken... it's quite strong!
Do you also believe that TD platform quite strong?
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jax
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Post by jax » Saturday 17 January 2009, 22:32

Nothing was broken.
Just to have a more efficent movement of the springs.

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leeho730
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Post by leeho730 » Sunday 18 January 2009, 0:50

starikashka, I've read your message, thank you, but I do not believe it happens frequently enough that this becomes problem. Indeed, I tried to find related post in bomberonline forum but failed to find.

I know enough about stress fracture... I work with that problem enough, due to my job :wink:
starikashka wrote:No, this modification was made to get more of forward lean. You can spot the difference - left boot has been modified.
Haha, your picture was to show more heelside flex after tuning like picture #1.

You should have uploaded Picture #2 to show that the tuning was for toeside flex as well :wink:

And starikashka, you can clearly see on my video that Track 700 does not need tuning to provide toeside or heelside flex.
leeho730 wrote:Do you also believe that TD platform quite strong?
For me, the titanium bails never bent or broke on me after 30+ days of riding.

Now, shall we get back to the topic, please? As Jax said, this is about modifying BTS to provide more flex because otherwise long bolt would beat on the BTS, not about stress fracture.

Anyway Jax, if you wish to prevent long shaft from beating on the BTS, one way is to shave off bottom part of the long shft as shown in the picture (marked red), to make the bolt flex more forward.

Place BTS onto one of your boot without springs and heel block (the more squarish upper part), and then flex the boot toeside. You will be able to see clearly that it's the bottom part of BTS system that somewhat limits the forward flex...

So if you reduce some areas of BTS part near bottom pin in strategic fashion, you should be able to make shaft move forward more. I suppose that's what you wish to achieve, but if I'm wrong, please let me know.

About the wire... I am not sure. Perhaps it will work...
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ris_1.jpg
Picture #2
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ris_7.jpg
Picture #1
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leeho730
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Post by leeho730 » Friday 18 September 2009, 13:58

@jax

I apologize for the late reply, I forgot that I had to reply to this thread. I've just finished shifting to Australia (I'm now over 3000km away from nearest ski resort... damn!)

Two pictures: modification I made to BTS and BTS under flexion.

Hope this helps :)
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BTS.jpg
BTS modification
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BTS2.jpg
BTS under flexion
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Post by starikashka » Friday 18 September 2009, 21:14

i like Australia :-) you should consider some other australian fun :-) and by the way 3000 km is not so far..If you talking about NZ which i dreaming to visit :-)
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Post by pokkis » Friday 18 September 2009, 21:25

That is long way to weekend rides anyway :wink:
I mean when i lived in Dallas then 900km was long ride for weekend rides anyway 8O

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leeho730
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Post by leeho730 » Saturday 19 September 2009, 3:42

It takes about 6 to 7 hours to fly to Sydney, not to mention I have to drive for at least 2.30 hours to go to the airport. Then it's another 2 to 5 hours from airport to ski resort. In total, at least 12 hours to just to get to the ski resort...

I'm planning on settling in either Queenstown or Wanaka in New Zealand, but it's not gonna happen until 2014.

At the moment I'm dreaming of going to Europe... :cry:
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Post by starikashka » Sunday 20 September 2009, 14:24

i also live within 12 hours of travel from appropriate resort :-) soo...it`s nice to read that somebody else has same troubles :-) :-) :-)
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