Video: Whistler Four Wheel Destruction with Stacy Kohut

 A PB review? I'd love to see RC's first ride on one of these.

 Did you notice the 4-wheel independent braking - he's got 2 levers on each side!

 I wonder if he uses them separately? If not, I'd try to develop a lever where you can drop two lines off of it to each wheel.. just like the front wheel of a motorcycle. you can do two lines right off the banjo on the lever, or you can go to one caliper and then branch off to the other... would clear up some space on the bars. But that thing looks intense, I'm sure it was engineered that way for a reason.

 There's a company that produces them (I can't find it) but I believe they're sold as "4 wheeled mountain bikes". Anyone else miss the joint segments of Stacy with Trevair? Ah so good to see at least one of them ripping again.

 We got one of Stacy's rigs for my mate. Its sick as hell and amazing what it can handle. Took it for a go down the local track we made for him... Way way harder than you would think to use... Taking it easy I rolled it first corner, the suspension just topples you over if you get it wrong. Off camber stuff is full commitment. Actually everything was like that... Been cool to do the wrenching on it and learn how to set it up suspension and tire pressure wise. Crucial when yer mate relies on it 100% to not kill him..
Hardest part is finding tracks as the front end is just under a 1m wide and its essentially chainless. A-line in Whistler was perfect for it but single track is usually a no go...

 @poundsand you'd need a much larger master cylinder in the lever to run 2 calipers, otherwise the lever would have a ton of throw and almost touch the bar.

 The brakes are pretty simple. its 4 complete brakes that have the levers for each end bolted together with a couple plates. The brake lines have a mixing chamber for the front and back ends that keep it all balanced. Works just like normal brakes, you squeeze one side for front other for back. Oh and running just one lever wouldn't pump enough fluid for 2 calipers.

 He has better form then I do

 I run two levers on one side of the bike. Allows me to modulate the brakes, and simpler than having to deal with any custom parts or extra joints. Toby's Cycle Works in Vancouver does a lot of this work and I have seen a few of these in his shop. They build my arms.

 Thats awesome, i didnt even know this technology was out there for bikes until i saw this vid.

 a bike check huh?
hmmmmm.

nice idea.

the hayes brakes and levers for the bikes were always customized at thefixinc. in whistler.
2 levers and 2 ressies mix into one ,then push 4 pistons.
equal pressure left and right.
simple solution to a complex problem.

stoked to see you into it!

 nice one, stacy!

a few detail shots from the bike during a short interview in Whistler - german only, sorry: www.mtb-news.de/news/2014/08/13/wahnsinn-auf-4-raedern-fourwheeler-stacy-kohut-ueber-line-spruenge-und-rallye-feeling

 thanks for the article, used google translate and it worked fairly well

 Interesting idea having the two lines run through a mixer before splitting out again. Just had a thought....I dont really know how much fluid a moto brake lever pushes compared to a mtb one, but I'm willing to bet its a fair amount more, judging by the size of the calipers. Have you ever tried mounting a moto lever and running both calipers off of one master piston?

 Hope Technology do a system.

They've made bespoke systems for people before that have had disabilities That I've seen around.

heres a link to something for the road/CX market that you could easily use on a quad cycle.

www.hopetech.com/product/v-twin-brake

 neg props, apparently no one sees the Eddie Masters Fat Bike video reference. It was funny in my mind.

 For the record, I got it and thought it was hilarious!

 Yeah I remember watching his part is NWD 3 (?). He sent then and still sends it now! Mans a legend!

 thank you kindly for the very nice words.

as far as the adversity is concerned............
i'm just stoked/lucky i had parents that raised me to try.

daddy was a drag racer, momma was a bleach blonde.

 Back in 94 I met Stacy in Lake Louise, would have to load him and his ski bob on the ol Friendly Giant. he would rip the craziest lines down the mountain while on the heals of Greg Todds and Scott Newsome, and drop some big drops.
Oh....and fast as sh@t!

 6 and a quarter actually. lol. linear too! same up front.

 Aha, it was a reference to the " I'm Faster Than You" video.

 thank you. we just wanted to stoke people out for dh. really happy to hear you liked it.

 Stacy have you thought about investing in a little electric motor of some sort to troll around on?

 why would i avoid hardwork?
why would i avoid what makes me excel?

i have an engine, its called a heart.

2 wheels or 4 wheels, the minute you put ANY type of engine on it, it stops being a bike and becomes an atv or motorcycle.

if i had an electric engine on my bike i would never be allowed to ride bike parks again.

 don't mean to sound harsh, but it is the truth. to be very honest, never once in 16 years of riding the fourwheeler have i ever wanted a motor. besides, if i did, i could go to any motorcycle store and buy an atv. 2 separate, and different sports. i like one, but not the other.

 wheels are phil woods laced to sun with dt spokes. 3 cross, mirror images, and they do 'tighten' under braking. built to perfection and harmonically tuned by james at thefixinc. i go thru 4 sets a year, that 16 total wheel builds. glad you liked the footage!

 Harmonically tuned... Hahaha

 Spokes "tighten" under braking. You are the only other person I have heard refer to it like that. Respect level just went up a notch...

 Harmonically tuned is good. Its like using a tension gauge but quicker.

 It's what people that are missing the actual points of building strong wheels tell people so those people are dazzled by what they know. Spokes always tighten under braking. It's which ones that tighten that matters.

 Leading spokes always tighten under braking. If they are on the outside of the hub flanges, this increases spoke triangulation, bracing the wheel against the increased loads it is likely to undergo while braking. If the leading spokes are on the inside of the flanges, spoke triangulation is reduced, as is the strength of the wheel exactly when it needs it the most.

If the leading spokes are inside on one flange and outside on the other, your wheelbuilder is an idiot. Common practice is to do exactly this on rear wheels, because of one side dealing with drive forces and the other dealing with braking forces. This is stupid. Unless you weigh about 7000 lbs your hubshell is unlikely to be twisting under braking, let alone drive forces. The other argument for doing this is that if your chain derails into your spokes, this way causes less damage. As far as I am concerned this is the equivalent of walking round in a nappy just in case you piss yourself. It shouldnt be happening in the first place, and if it is, you have bigger problems.

To be honest the differences are miniscule. But one way of building is better than the other two and has no downsides, so why not?

 Thanks for the lesson. You probably like telling people you harmonically tune their wheels too.

 Yup, Equal spoke tensions are a good thing after all. I do check em with a tension gauge after to make sure, but I have never come across a situation where spokes at the same tension produce different notes unless someone has supplied me with shit spokes. Any other points you wanna be a little bitch about?

 oh you just seem like you want it. You're obviously a bike tech God. Some bodies gotta be the Devils advocate. It's obviously not going to be you.

 Playing devils advocate would imply that you have given reasoned and difficult to refute arguments about why there are better ways to build wheels. However what you have actually done is simply say "Harmonically tuned... Hahaha" Thats not a reasoned and difficult to refute argument. Well, not unless you are still in kindergarden.

 Your previous response before editing was far better.

 Probably, but I cant very well accuse you of of making claims without backing them up, then just call you a bitch without backing it up myself.

 Anyway, good talk. I'm off to catch a plane now. Cya later.

 Like I said. You're obviously a bike tech God. So there's no point in even trying to argue sensibly with you. Because you clearly own the patent on sense. I just like to get it done and make sure it stays done while not wasting the whole day doing it. If I was building bicycle wheels to go in the fucking Louvre maybe I'd do some harmonic tuning. But we're just riding them over jagged rocks so in all likeliness you're harmonic tuning is completely undone after a lap or two. And the rim was never made well enough in the first place to even matter. And if you haven't spent half the afternoon stretching your spokes in like a scientist it matters again, even less.

 Thanks for the entertainment gentlemen. This is why I love reading the pinkbike comments section.

 stoked. i was hoping you'd approve. means alot coming from you sean. chris ricci nailed it. peace

 I had the opportunity too see you ride Stacy in the two summer seasons previous that I lived in whistler, I am stoked Chris and you got together and made an edit. You absolutely rip bud!! Bloody nice work Chris keep up the good work!!

 thanks waki,the vid was fun to do because chris ricci stuck to his guns and made a nice edit that comes from the heart.

for anyone that wants to check out the leech interview..........go here.............


www.ryanleech.com/2013/11/28/provisions-podcast-8-stacy-kohut

thanks for the nice words again waki.

 thanks man for the cool comment. thank you EVERYBODY, for all the comments. the whole point of the vid was to just show a boy and his bike going as fast as he could , as aggressively as he could. real glad it came thru.

 brap.

 I thought the same thing, pick one good line and make sure you can get 2 wheels into it.

 Balls. Really big balls.

 and a large dose of desire. lol. peace

 How does he sit down with balls that big!

 for sure!!!!!!!!!! i go thru alot of wheel bearings. the inside bearing in the rear take a beating daily. i can hear them moan and groan until they are ready explode. the worst is when you get one with slight defect in it from the factory, it can disintegrate in a day. messy, messy.

 Love it ha ha must be brutal. If I see you around next summer we'll have to stop for a chat.

 glad you liked it ruben! lift laps soon! peace

 20 inches in the front 26 inches out back maxxis rubber,sun rims. i'm glad i don't have to deal with the 650 thing in the fourwheeler. whew.

 brap.

 1,2,3, 4 or 5 wheels............ don't matter. its not what you ride, but THAT you ride . peace

 lol...............

you're too close.

www.youtube.com/watch?v=1edBjjBw9q4

 i'm shutting down the studio!

 very nasty. very very nasty. good eye bikerguy.

 eddie reategui?

 Great Vid Buddy, didn't he sk8 for alva?

 heres eddie in all his 'yah dude' glory........

www.youtube.com/watch?v=5X9iROyjYnU&list=PL2D1375BF79846617

eddie is the one rockin the pink shorts and a t-shirt wrapped on his head ala spicolli.

alva for sure, but maybe on powell during these years, definately hanging with the powell crew.

at 3:13 is the ultimate 'yah dude'.

nice catch slayer74!!!!

 Good ol' days ✌️

 lol