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bonkin' clyde
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I already rode that
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bluronthetrails said:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7205612331

One crazy lot of stuff, with stuff like 100 Bonty race rims, among other things...

*I genuinely thought this was crazy, so I posted. If you guys think this is an 'ad', Francois, you go ahead and remove this.*
Carbon fibre axel? Now if that isnt scarey I dont know what is. Not to meantion the way the "drop out" part is bonded? to the tube. :eek:
 

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scary.

The brake is relying on the bolts to stop teh braking forces, instead of teh fork leg stopping those forces. Besides that, it is a 22mm post mount.
 

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damion said:
The brake is relying on the bolts to stop teh braking forces, instead of teh fork leg stopping those forces. Besides that, it is a 22mm post mount.
Ignoring that you guys are commenting on prototype forks you have never seen except in the small pics...

The brake post mount shown in the pic puts less stress on the bolts than an IS mount.
 

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shiggy said:
The brake post mount shown in the pic puts less stress on the bolts than an IS mount.
How do you figure? This appears to put the stress in tension, not shear.

Anybody have any idea what this guy was trying to accomplish?
 

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OT: Mountain Bike Oregon!!!!!!

Hey Shiggy, When did Mountain Bike Oregon develop? I had never heard of it until I read through the info at the bottom of your posts for the first time in several weeks. Since I spend/waste a lot of time on these boards and this is the first time I had noticed it, it can't have been widely announced. Maybe you don't want it to be, yet. I'm putting it on my schedule now so other things don't on ahead of it. It looks like a great opportunity to get up there and see what you guys have, meet you all, and August is the best time to do it. I voted for the 5 day ride!!!!!!!!!!!!! :D
 

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Crusty Oldman said:
How do you figure? This appears to put the stress in tension, not shear.
Consider that the fork is upsidedown in the picture. The wheel rotation is counterclockwise. The direction of force on the caliper is basically the same as with any Manitou post mount (not commenting on the strength of the fork mount).

Does it help to see it flipped?

Anybody have any idea what this guy was trying to accomplish?
Does it really matter? He was working on his own suspension designs much as many others have over the years.
 

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lithiapark said:
Hey Shiggy, When did Mountain Bike Oregon develop? I had never heard of it until I read through the info at the bottom of your posts for the first time in several weeks. Since I spend/waste a lot of time on these boards and this is the first time I had noticed it, it can't have been widely announced. Maybe you don't want it to be, yet. I'm putting it on my schedule now so other things don't on ahead of it. It looks like a great opportunity to get up there and see what you guys have, meet you all, and August is the best time to do it. I voted for the 5 day ride!!!!!!!!!!!!! :D
First one was this year. It was a lot of fun. Come on up!
 

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Your bike is incorrigible
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Real Cheap Real Light Fork

Ultra-grade cardboard tubing bonded to aircraft quality PVC pipe with the revolutionary Perma-stiK (TM) resin. What is so wonderful about this fork, you ask? To begin, I have spent several years in my garage workspace perfecting the bonding process (it is not easy to permanently bond cardboard and PVC, so don't trust "other" brands!). What makes this fork unique, you query? Simply put, I have developed the Insta-Tak (TM) system for connecting the brake caliper to the fork. Using my specially designed Insta-Tak (TM) thumbtack and a small blob of recycled chewing gum, you can mount your brake caliper directly to the bottom of the dropout, greatly reducing shear forces created by traditional set ups. ;) ;) ;)

Sorry, but it did look just like PVC pipe on first glance. And, yes, I do appreciate the fact that the caliper mount is in a better place than IS. I've often wondered just how much force I'm putting on that flimsy looking bit of aluminum.
 

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Does it really matter? No, because the guy gave up on the project. But maybe he gave up for a good reason, other than getting married, and I'd like to know why.

My guess is that he was trying to reduce unsprung weight by inverting the slider/tube arrangement. Unfortunately, all stiffening for the lower part of the assembly appears to be via the axle, as no other stiffening is possible. I can envision all sorts of deflections, and flakiness in the handling.

I disagree that the caliper mount shown is as strong as a post mount. A post mount has attachments at two points. This has just one. And there is a lever moment as well, putting added tension on that one bolt. Not good!
 

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Crusty Oldman said:
...I disagree that the caliper mount shown is as strong as a post mount. A post mount has attachments at two points. This has just one. And there is a lever moment as well, putting added tension on that one bolt. Not good!
The caliper is a post mount! It is the old Hayes 22mm "standard" and uses 2 bolts. The fork just has a partly cantilevered mounting area.
 
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