| Author | Message | ||
     Thepod |
http://www.asphaltandrubber.com/news/brakko-combin ed-wheel-brake-system/#more-6816 | ||
| Kustomklassix |
Wow, that didn't take long. | ||
| Joel9 |
man i wish my bike.. oh wait nevermind | ||
| Froggy |
I am sorry but I can't help buy laugh at the Kelly Clarkson music in the video! | ||
| Kustomklassix |
Damnit Froggy, it's P!nk, not Kelly Clarkson!! Get it right!! Bah, she would whip Kelly's arse  | ||
| Andymnelson |
That looks just cool. | ||
| Cityxslicker |
and just how durable would a spoked 21 incher be off pavement?... I need a product lead demo. | ||
| Benm2 |
Now, imagine trying to change that wheel in 20 seconds or less. | ||
| Rocketman |
It's a very neat design on two fronts different from the Buell ZTL. It transfers forces to the centre of the rim and keeps braking force central to the steering. Looks the dogs too! Rocket | ||
| Aeholton |
The wire spoked rims look sweet! | ||
| Swordsman |
Story is here as well: http://thekneeslider.com/archives/2009/11/30/brakk o-combined-wheel-brake-system/comment-page-1/#comm ent-267346 ~SM | ||
| Tq_freak |
How do you change the rotor? is it a split rim? Bad enough I worry about little BS bolts vibrating loose, don't need to worry about the bolts holding the front wheel togather coming out. | ||
| Brinnutz |
I'm confused...what are they copycatting? It sure as hell isn't Buell's braking system at all.. | ||
| Swordsman |
Brinn, it's a perimeter mounted brake. There are only so many ways you can mount it. Since Buell's been doing it for years, it can't help but be darn close. Looks cool as hell, but just doesn't seem practical. A lot more work for no extra payoff (compared to ZTL, that is). ~SM (Message edited by Swordsman on December 02, 2009) | ||
| P_squared |
I'm curious as to how hot that thing will get under hard braking? | ||
| Panhead_dan |
The wire spoke wheel has straight spokes. Spokes need to be set at an angle for strength. | ||
| Aesquire |
WoW! love the music. ( That's one of my fav Pink tunes ) The brakes though....LOL! It looks like a patent violation to me, but the lengths to get around it.... You want to pump brake fluid through the hub, make the torsional load to the caliper pass through the hub & the end block on the fork, and add several pounds of mass to the system to make a ZTL brake that looks cool and bypasses Buell's patent? I'll grant you a few theoretical advantages, but there is no way the wheel brake combo is going to be lighter than a stock system, much less a Buell one. Am I wrong, but does ALL the braking load go through the 4 small screws that hold the end of the fork on? "I was fine before you walked into my life. Cause you know it's over before it begins" | ||
| 46champ |
Looks to me this is what they had to resort to to get around some particular patents. Wonder whose they were? | ||
| Trojan |
Not really a copycat is it? If you think that then surely the Buell ZTL is just a copycat of the original rim disc from Braking. Is it any better than a set of monobloc brembos fitted to modern sports bikes? I doubt it. Good marketing though. | ||
| Midknyte |
Guys, Buell does not have a lock on perimiter braking, nor was he first. What he did do, was to come up with a mounting set-up (floating rotor) that made it mass production possible/practical. | ||
| Reg_kittrelle |
There actually were motorcycles before Erik, and there were some fairly clever people coming up with unique ideas. Give Erik his due, but don't make yourself look stupid by not doing your homework. | ||
| Jaimec |
If the spokes no longer have to transmit braking loads, then there's no reason they can't be radial. There are bicycles built now with radially spoked front wheels (the rear wheels remain traditionally spoked since they have to transmit the driving force from the center hub to the outer rim and tire). | ||
| Midknyte |
There actually were motorcycles before Erik... Yup. Don't tell anybody, but some of them had fuell in frame too.  1939 Presto Saxonette | ||
| Rick_a |
It looks overly complicated...a solution for a non-existent problem. I also wonder about the heat, as those rotors and calipers are pretty well shrouded. | ||
| Blake |
Fail. Too many serious issues with that configuration. It may look neat, but in performance and operation is is sorely lacking. See if you can see why. I notice at least three glaring issues. Looks to me like it may well weigh more than conventional systems. | ||
| Blake |
"It transfers forces to the centre of the rim..." Of no consequence whatsoever. "... and keeps braking force central to the steering." Which is true of all motorcycle front brakes. If not, then when you actuated the front brake, the front wheel would steer offline. The braking force acting on the motorcycle is at the center of the contact patch of the tire, thus when upright and vertical, perfectly centered wrt to the steering axis. The internal load-path from the contact patch to the handlebars and the rest of the bike is another matter. For single/one-side disks, the internal load-path is through only one fork leg. If the fork leg and local lower portion that supports the caliper is properly designed, the effect is negligible. The brake load carrying fork simply sees a very small amount of flexure, a very small negligible amount. Proper placement of the caliper is also critical. | ||
| Swordsman |
"Looks to me like it may well weigh more than conventional systems." They claim otherwise, but honestly, it DOES look like more. Maybe by "conventional" they mean drum brakes? ~SM | ||
| Oddball |
I remember seeing a pic or two of that wheel/brake setup a couple years ago. Interesting look, not as bad as other super duper brakes. How about that one that gives your custom hd a brake like a 10 speed? Squeezes the rim. Or that 360 brake. As small as can be so your shiny wheels can be seen. | ||
| Blake |
"Give Erik his due, but don't make yourself look stupid by not doing your homework." Right like suggesting that the fully floating Buell ZTL brake/wheel system is a ripoff in any way of the bolt-on Braking perimeter brake in which the disk was positioned ludicrously out in harm's way outside of the wheel/tire envelope and which was not a floating rotor, nor did it take advantage of the ability to significantly trim mass from the wheel, the main goal and reason for the ZTL brake system. If the topical Brakko system uses the Buell ZTL floating rotor scheme, then it would indeed be a rip-off the the Buell ZTL system. Period. If it uses a novel approach to achieve a floating rotor, then it is a new variation on the Buell ZTL. Neither was Braking the first to mount a brake disk on the perimeter of a wheel. From an experienced technical perspective, the ZTL system is a HUGE leap in technology for motorcycle front brake & wheel systems, allowing previously unimagined reductions in front end unsprung weight. Trying to diminish that stroke of genius is strange, but I guess some non technical types just cannot grasp the true achievement and significant real world benefits afforded by the Buell ZTL brake/wheel systems. I've done my homework and am uniquely qualified to judge technical innovation in the mechanical/structural arena. Erik and his associates don't get near enough credit or recognition for their achievement with the ZTL brake and other innovations. Before the advent of the Buell ZTL, if you had asked the world's top sport bike engineers if they could trim 6 LBs from their production cast aluminum front wheel and brake assemblies while retaining excellent performance on road and track, they have laughed you out of their office. They struggle to trim mere ounces from the unsprung mass of the front end of their repli-racers. What Buell achieved with the ZTL system was nothing short of astounding. | ||
| Anonymous |
Absolutely true, Blake. The claim that this transfers forces differently is ridiculous. Someone need to do their statics analysis homework. |
