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High Rollers
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Everything posted by aerius

  1. It came up in a dinner conversation with Damon Rinard, he coaches my friend's cycling team and he's also the composites engineer at Cervelo. I brought up aerospace applications and why it works just fine there, as he explained it, and I probably missed a few things, it has to do with the epoxies and stabilizers along with the layup, and also they build with larger safety factors on planes. I had no idea it happened on bikes, I knew it happened on hockey sticks since they get massively flexed and take huge impacts on slapshots, but apparently it happens on bikes too, it just takes a lot longer. There were some other fun things such as BB stiffness being highly overrated and that you could break the seatstays on an R3 and it'll still ride just fine.
  2. Carbon fiber frames have a limited lifespan, or rather, a limited mileage after which they start to go soft. For a pro it's about 1-2 years of racing & training, for the average enthusiast cyclist it's around 5-6 years. The bike doesn't fall to pieces, it just gradually loses its stiffness as microcracks form in the epoxy and the fibers start to debond. It's the same thing that happens to my carbon fiber hockey sticks, except the sticks go soft faster since they're abused more. A titanium frame on the other hand lasts forever and stays good as new unless it's crashed hard or run over by a car.
  3. 1) Commit on corners better, I need to trust the tires more and just lean the bike way the fuck over. I couldn't do this consistently this year and lost too much speed from being a wuss. 2) Take a trip to Quebec and spend a week riding the world cup DH course and other trails at Mont Sainte Anne. 3) Get more airtime on jumps & drops. Do bigger jumps and drops.
  4. See if you can sneak in a quick ride tomorrow to work the stiffness out of your legs, even a half hour spin around the block will help. Tomorrow, I'm going to get my ass kicked in mountain biking by a former world champion. My goal is not to get hospitalized since there's a big ride I'm going to on Friday.
  5. Dmitri Hvorostovsky - Kalinka: Russian Folk Songs The last track is full of awesome.
  6. For gloves, it depends on how narrow and/or overgrown the trails are in your area, how hot & humid it is, and how often you fall on your ass. My local trails are pretty narrow and get badly overgrown in the summer so full finger gloves are essential, without them my hands would get ripped to shreds. Shorts is whatever you feel like wearing. Some people will rock the roadie tights on the trails, others go shorts on top of tights, and some choose MTB specific shorts with liners. There's no right choice, ride whatever feels good.
  7. On the other hand, we now have "fat bikes" with big balloon tires that let you ride on snow. There's a bunch of guys a couple hours north of me who ride their fat bikes in the snow all winter, and several XC ski areas have opened their trails to bikes this winter. Check it out https://plus.google.com/photos/113125576961447749127/albums?banner=pwa&gpsrc=pwrd1#photos/113125576961447749127/albums/5696187796353128385
  8. At least you still have ridable trails where you live. Everything in my area is super sticky ankle deep mud thanks to all the rain we got over the past couple weeks. Riding season is pretty much done until it gets cold enough to freeze the trails solid. Hooray for indoor ice rinks, otherwise I'd probably go postal from lack of activity.
  9. Oh man, Avid turkey gobble taken to the next level. It sounds like a cat getting fed through a meat grinder.
  10. True enough. A lot of people I know just get a new set on clearout or warranty every year. I hate fixing or replacing parts on my bike so I always go for the most durable and reliable parts I can buy.
  11. The root cause of Crank Bros. pedal failures is loose tolerances in production along with some questionable design choices. If you happen to luck out and get a pedal where the tolerances for all the parts are right in the middle of the spec it'll last just fine, problem is the good ones are few & far between since the tolerances are so wide. Going by the riding groups in my area, somewhere around 10-20% of their pedals are good for the long run, the rest of them wear out prematurely or suffer catastrophic failure. You might luck out and get a good one, but the odds aren't good. Friend of mine was lucky and got a good set on her first purchase, they worked and she liked them so she bought more for the rest of her bikes. The later buys all failed in less than a year.
  12. People love Eggbeaters for cross since they're super light and they clear mud, snow, and ice very well, which is worth the risk of a DNF if the pedals crap out during the race. But for mountain biking they're too fragile and unreliable, and even better, if you get a pedal strike it'll unclip your foot from the pedal. I've seen a bunch of people hit their Eggbeaters on a rock or log and have their foot go flying off the pedal, followed by a crash.
  13. Do NOT get anything from Crank Brothers. Period. Unless you want your leg impaled by a broken pedal spindle. When I go on a group rides, it's almost guaranteed that someone will break a Crank Bros. pedal. Anything from Shimano is good, but my preference is for Times since they're simpler and require zero maintenance, plus they work better in mud & snow. I run Time ATAC Carbon Ti's on my bike, had'em for 12 years, still running like new. They've outlasted everything on my bike except my Chris King headset and 4-piston XT disc brakes. As for clipless vs. platforms it depends on what kind of trails you ride and how often you need to bail off your bike in a hurry. For instance if I'm riding a bunch of skinny bridges, teeter-totters, and other stunts I want platform pedals for sure, for everything else I prefer clipless. A lot of it comes down to personal preference as well, some people like platforms more because it matches better with their riding style, same thing with clipless.
  14. Get ready for the infamous Avid turkey gobble. Most Avid brakes come down with it either right away or as soon as the pads are bedded in, it's just a matter of how bad the noise is and how hard it is to fix.
  15. 1996 and 2006 Kona Explosifs. There's just something special about the feel of these frames, maybe it's the fancy steel tubing, maybe it's Kona's special sauce for frame geometry, probably both. They're so fun to ride.
  16. Put a bottle cage on the seat tube mounts and see if it sits straight. There's a batch of R3's and possibly some R5's as well that left the factory with crooked bottle mounts, when you put a bottle cage on them it tilts to the right by nearly an inch and besides looking stupid it may rub on your legs. One of my local shops got several bad R3's with that issue, it's not too big a deal if you use a metal bottle cage since you can rebend it to make it sit straight, but if you're using a plastic or carbon cage then you have a problem.
  17. Finished building it up today and took it for a nice spin this afternoon. Had some fun playing around with the sliding dropouts to see how different chainstay lengths affected handling, ended up with the sliders set to the exact same length as my old Explosif. Rides just the way a Kona should, it's like I've had the bike my whole life.
  18. The Twinkie lives on, at least here in Canada. I can't say I've seen any on display shelves recently, but I'd guess Walmart has millions of them for sale. http://www.theglobea...article5548529/
  19. Thanks! It was much the same with me, I started mountain biking in the early 90's and I always wanted a Kona Explosif, and later on the Ibis Mojo Ti. Yeah, good luck affording either one of those when I was still in HS. I eventually got my hands on a 96 Explosif a few year ago and now I also have a 2006. 10 years apart, and funny enough they're the 2 runs that use shaped Italian tubing; Columbus on the 96 and Dedacciai on the 2006. Friend of mine used to race for the Kona factory team, I rode her Kona Hot once and it was just incredible, it was like my Explosif but better in every way. She also had a titanium Hei Hei which was painted to look like the Hot, I never got to ride that one and I'm not sure if she still has it. The mid to late 90's were a golden era for those bikes, never again will we see that kind of high-end steel and titanium goodness from mass production bikes.
  20. It's a newer version of my current bike so I'm definitely going to love it. It's made from Dedacciai SAT 14.5 tubing which is usually found on road bikes. Nice! But you gotta knock that last ounce off it and get it right to the UCI limit.
  21. Picked this one up on the local classifieds. I haven't decided how I want to build it up yet. Also, anyone know how to pronounce "Dedacciai"? Cause I sure as hell don't.
  22. Carbon allows them to build super stiff bikes at a reasonable weight. It might only take a pound or 2 off the weight of a bike, but since they can use bigger tubes, monocoque designs, and optimize the carbon layup they can make the frames far stiffer than any metal bike. A stiffer frame enables the bike to hold more aggressive & faster lines and lets the suspension work better. And if one of the factory pros breaks a frame they just pull out a new one from the truck.
  23. A good steel or titanium mtb will last nearly forever even if you abuse the hell out of it. My '96 Kona Explosif was raced by the factory team for a year, then handed off to the development team for another year, then dumped for cheap to some guy in BC. He rode the hell out of it for 7-8 years then had it in storage for a bit before he sold it to me, and I've been trashing it for the last 3 years. Other than a small ding in the toptube and a hell of a lot of paint chips, it's still good as new. A good Ti bike will be even tougher than my steel frame. Friend of mine is a former pro who had a full factory sponsorship. She has a few Ti bikes which had the shit beaten out of them on world cup courses year after year, other than a few minor scratches they're all good as new. Those bikes are anywhere from 10-20 years old and have more miles and abuse on them than most people can rack up in a lifetime.
  24. Go old school steel, but with a twist. Firefly Bicycles makes a custom road bike with Columbus XCR stainless steel tubing. Seriously good bikes, the company's run by guys from Independent Fabrication, they have a long history of making innovative kickass bikes. http://fireflybicycl.../road-stainless And just to make your life even more fun, Seven Cycles 622 SLX. Carbon tubes with titanium lugs and chainstays. I saw one this summer when I dropped into the shop I used to work at, I'm indifferent towards carbon bikes at best but with this one I went "shit, if I did road riding and had the cash, I'd buy it no question". Well, I would if they didn't make the Axiom SLX.
  25. Video from yesterday's impromptu bike park session.
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