What's the story with the front brakes?
ZTL (zero tortional load) front brakes were designed by Buell I believe. Being mounted to the perimeter of the wheel, only one disc and caliper is needed (more surface area to disperse heat) which reduces unsprung weight.Originally Posted by frenchwv
2023 KTM 890 Adventure R
The wheel and hub itself also don't need to be as strong, so they can be made lighter as well.
It's a good design.
2021 KTM Duke 890 R
2020 BMW R1250GS Adventure Exclusive
1982 Honda CB750F Super Sport
It's a design. So far the benefits don't appear to be large enough to justify the drawbacks. The big issue being the lack of rotor float, and putting all of the stopping energy into one rotor instead of two leads to a system that likes to warp REALLY easily.
Turning it into a floating design doesn't seem like it would be all that hard.
2021 KTM Duke 890 R
2020 BMW R1250GS Adventure Exclusive
1982 Honda CB750F Super Sport
The perimeter front brake is a longstanding Buell feature; they pretty much all have had those for decades, for the advantages mentioned above.
Other unusual features of Buell design are that many models feature use of the frame as the fuel tank, and some have used the swingarm as the oil reservoir. Belt drives are used on several models.
A particular emphasis on mass centralization is one of their consistent design principles.
PhilB
Last edited by PhilB; 01-11-17 at 10:47 AM.
"A free man must be able to endure it when his fellow men act and live otherwise than he considers proper." -- Ludwig von Mises
1993 Ducati Monster M900; 265,000 miles -- killed by minivan 30Oct17
So far I've not seen an example of it, in racing applications they tend to just toss it even on EBR 'factory' setups for traditional brake setups. I would assume if there were an easier path to keep an iconic to the brand attribute where they could they would. I do think one of the WSB Hero/EBR riders kept it IIRC...
It is a floating design. Behind the rotor are a set of springs that make it float.
04 XB12R
02 CBRF4i
BearsDen.com
Here is a breakdown of the XB wheel which has a very similar design to the SX wheel. You can see that there are 6 springs behind the rotor that make it float.
Buell Front Wheel.pdf
04 XB12R
02 CBRF4i
BearsDen.com
Fuck me running.
Cliff's Cycles KTM
NETRA enduro B-vet
Close your eyes, look deep in your soul, step outside yourself and let your mind go.
Well that sucks, I was really rooting for them to do well this time around. They really had something here with their new bike. I think this is finally it for my favorite brand of motorcycle. Bummer.
Their wording of the press release kind of hints at them searching for more capital, but winding down operations in the meantime. Motorcycle.com parsed it a bit here:
Can’t Catch A Break: EBR Announces Its Closure (Again)
2023 KTM 890 Adventure R
Posting Permissions
Reply With Quote