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Author Topic: A dream come true  (Read 2748 times)

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Online BillT

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A dream come true
« on: August 01, 2008, 08:02:29 AM »
I really hope we see more gearbox designs come out in the future on a wider variety of bikes.

http://www.bikeradar.com/mtb/news/article/diamondback-sabbath-with-enclosed-transmission-is-here-17013

It definately has a place in the DH world but I think with further development (and consumer interest), it could be adapted to other biking disciplines.
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Offline treadlight

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Re: A dream come true
« Reply #1 on: August 01, 2008, 10:38:23 AM »
Now that is what you called "sealed".
But it is almost at $7K, that is a lot of dough.

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Re: A dream come true
« Reply #2 on: August 01, 2008, 10:45:49 AM »
While I don't think it'll cost $7k when/if it comes over here, it will probably be pricey, but probably still in the range of other DH bikes with similar levels of componentry.  Its biggest problem most likely will be that it is a Diamondback rather than a Specialized/Giant/Trek/Cannondale/etc.  One day the rear derailleur will die.
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Offline chisel

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Re: A dream come true
« Reply #3 on: August 01, 2008, 02:32:42 PM »
mine died 3 days ago when a large stick went in it.. suucks! $140.00 ride that day. >:(

Offline Rasterman

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Re: A dream come true
« Reply #4 on: August 01, 2008, 02:49:47 PM »
$7k is for the whole bike, there is over $2k worth of shocks on the bike alone.  It does sound pretty interesting...

http://g-boxx.org/06-faq.html#01

- ability to shift without pedalling!
- totally sealed so less maintenence
- no deraillure to break
- no rotational weight on rear wheel (freewheel and cogs are in box)
- moves weight of cogs and freewheel to center of bike

The site doesn't list any disadvantages of course, but they probably are weight and if it breaks you will be sending it in.  It also doesn't mention how many gears you have, but its probably not many.  This is probably why its going to be limited to DH only, weight and low gear count.
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Re: A dream come true
« Reply #5 on: August 01, 2008, 03:22:31 PM »
The only price I've seen is in British pounds so it is really anyone's guess what it would cost if they decide to sell here (just blindly converting pounds to dollars on consumer goods is generally full of fail - prices on Santa Cruz and Intense frames over in the UK run in pounds what they cost in dollars here).  This particular design uses 7 speeds which is more than enough to get one down the mountain and if the gear spread is big enough, could be used in a lighter bike to get you most places you'd want to go on an average trail ride.
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Offline Jimbo

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Re: A dream come true
« Reply #6 on: August 04, 2008, 11:53:28 AM »
That is pretty cool how th G-Boxx works.  It's all magnetic.  The only drawback is that it weighs almost 10 pounds on it's own.
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Offline Rasterman

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Re: A dream come true
« Reply #7 on: August 10, 2008, 12:56:56 AM »
That is pretty cool how th G-Boxx works.  It's all magnetic.  The only drawback is that it weighs almost 10 pounds on it's own.

Jeebus, 10lbs, DH only for sure...
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Re: A dream come true
« Reply #8 on: August 11, 2008, 10:42:26 AM »
It is still really 1st generation technology - I'm sure if there is enough interest/$$$'s, they'll be able to get the weight and price down - will it ever be on XC race bike, probably not, but I hope that it will one day be good enough for your typical 5-6" AM/trail bike.
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Offline MtKillanewbieDH

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Re: A dream come true
« Reply #9 on: August 11, 2008, 01:27:06 PM »
This guy is working on a carbon gearbox for DH bikes.  Apparently is is also a CVT (no shifting).  Gearbox weighs in under 4lbs.

http://lahrcycles.com/

It will only be a matter of years until lightweight gearboxes are on all types of bikes.  Mark my word.

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