That method (just without an app) has been around for a long time. It's also known as "Vatican roulette" since it's not nearly as safe as they claim on that site.
The rhythm method. My aunt with eight kids said this: black people have rhythm, French Canadians have large families.
That's a lot of jake that's for sure. Just about all equipment intensive sports go this way. Ultimately the incremental improvements are so small and so costly that it's not easy to justify costs. I hear you on the hardtail flip. A person has to ask themselves what they really want from their sport. If what you want in a mountain bike ride is to ride just in control and scare yourself a bit now and then, hardtail does all that but on less risky trails at less risky speeds. It's like the answer to this question: What's faster, a big s class Mercedes going 140 kph or one of those shit box 3 cylinder Suzuki cars at 140 kph? (If you could get it to 140).
If the goal is to race then maybe expensive stuff is worthwhile. If you just wanna ride, I dunno. I want good components because I realize the value of stuff that works well for longer periods of time.
Might be MIPS propaganda but suggests a 30% reduction in rotational forces for a motorcycle helmet.
Have you seen any credible data to back up this claim? I haven't. Other than that, I agree with the rest of your comments.
No data. That's just what I've read about MIPS and other design features that are intended to mitigate rotational shearing forces to the brain. My comment was intended to indicate that wiggling a helmet around your head is a hell of lot different then smacking the ground. I did rip a roc lok out of a Giro helmet once when I went over the bars and hit forehead first. There were dents on the front of the helmet and the rear Roc lok attachment had ripped out of the EPS. I think the Roc lok stuck to my head while the helmet rotated forward from impact. But who knows.
There have been articles written about newer football helmets that incorporate some form of MIPS like design. I'll each for it.
it was the Switchblade , and the newer Bell and another model I tried on and did not like the fit or the feel of the helmet
here is another design using similar , the way these designs fit my head I can,t wear them when tightened up
Yeah like others already said, those fit devices are unrelated to MIPS. I hear you about the Switchblade Rok-loc. Too large and too low. For me though extra pads that raise the helmet up a bit let it fit well.
frankly I could care less , it,s been around since 1996 and they are now trying to cram it down our throats now as it,s a added safety feature FUCK THAT!!!
every MIPS version I have tried on was uncomfortable , I will not invest in a design that needs to be tightened onto ones head .
Not sure where you are coming from. MIPS is just a slip plane inside a helmet. Are you referring to a Giro Roc Lock fit adjustment device that nearly all road and XC and half shell helmets have in some form or another? Are you talking those fit things on a full face?
mouth guards are nothing new to the sport , meet guys in the early 90,s using them to stop from chipping and cracking their teeth .
If MIPs is the real deal why is it only being used in MTB ??? Neck braces are used is tons of sports along with helmets , but from what I have seen MTB is the only sport pushing it .
For me it,s another standard they are forcing upon the sport .
There are a few MIPS helmets for snow sports. There is something in football helmets that is similar to the 6d deal that intended to mitigate those rotational inpact forces. Bike helmets are simpler to design perhaps because they are intended for one crash whereas hockey and football need to last multiple hits. Motor sports helmets have to absorb far more energy than bike helmets.
I recently bought a Bell Super-2R with MIPS, but only because it was the same price (on sale) as the non-MIPS version. It's a nice helmet and fits fine, but I am not convinced that the MIPS system makes it any safer. My other helmets seem to slide/rotate on my head about the same amount as the new MIPS helmet does. I doubt it can hurt, but I don't think I would pay an premium for it. I think the 6D helmets are probably better at decoupling rotating/sliding forces from your head.
You can't tell how mips works or doesn't by wiggling your helmet on your head. If you hit the ground hard enough the force of the impact will cause the helmet to stick to your head and ground which introduces the rotational forces to the brain. None of us here have enough helmet engineering knowledge to state whether or not MIPS works, myself included. There is a lot of research going on right now on helmets in all sorts of sports. The rotational issue is something that helmet makers are looking at. There are a number of technologies that are aimed at mitigating that type of force so it seems to be a valid concern.
I did see an ultrasonic cleaner in use once. That mechanic stuck an old steel shit bike rear derailleur in it. All brown with that gunk that will not come off. Almost like a brown stain. Derailleur came out in minute gleaming like new. Scratched worn and beat up but gleaming. I have wanted one since but can't really justify it.
In a similar vein I tried greasing a hunk of chain the other day and using my heat gun to liquefy the grease to get it to flow into where you need lubricant. I was wondering how manufacturers get that factory grease in there in the first instance. Are the parts assembled already greased or are chains dunked in hot grease. Will heating grease like I did do something negative to the grease? I may try this later this year once the two meters of valley snow melts just to see what happens.
Great. Now I need a shop oven and a ultrasonic cleaner not to mention enough chemicals to excite the interest of the local constabulary. I think I'll just keep to my usual rinse out with solvent, blow dry and stuff with that insipid green Motorex grease. It looks nucular.