1984

This project was a fucking wormhole. I didn’t want to go down it but it’s gravity was just too strong. It was also a perfect example of the engineering process and how it goes, for better and worse. I started riding skateboards for real in 1984. I was 14. Sure, we played with toy skateboards … Read more

Professional Seat Tube Design

There are very few bikes that get used on dirt that don’t require a bent seat tube to work properly. Tires have grown, chainstays are short, and pretty much everything uses a dropper post. Today’s dropper posts stroke around 150 mm to 200 mm, 170-185 mm is preferred. These factors combined with the need to … Read more

#twentysevenfive is dead

It’s been a busy couple of months for me with bikes. It’s almost like a second job now. Building my own new generation frame, teaching a few other guys to build their own bikes, designing parts for the next class of my bikes, international and national parts orders, getting frames to paint, final assembly, testing, … Read more

More is everything

FULL RACE! The Blackbird has proven to be the greatest bike that I’ve made thus far. The geometry is dialed. It is completely sorted. It works well everywhere. It’s comfortable. It’s fast. It has real balance. Up or down hills it crushes. So what to do? Push it. Make it full race. Find its limit … Read more

Removing stripped PMW screws

I love using Paragon Machine Works parts. They are well designed, priced well, and very rarely cause an issue. One issue comes up with the DR2065 dropout I often. It’s not because of any poor work on PMWs part but it turns into a problem at just the wrong time. It’s an issue that comes … Read more

XD Spacers for DT Swiss hubs

Here’s a nice trick. We can now save money converting DT Swiss ratchets to XD from Hyperglide by buying just the freehub body (HWRAAX00S3114S). It used to be that you’d have to buy the body, ratchets, grease, and springs (HWYAAX00S3188S). It’s about half the cost. The problem is that the new FH body doesn’t include … Read more

Little details of the week.

Bike assembly weeks are always busy. There are so many details to focus on and little improvements to make. I try to make something better each time a bike goes together. I try to look at details with new eyes each time. The big news this week for a lot of framebuilding folks is the … Read more

Blackbird Shakedowns

2017-10-14: Shakedown 1 With smoke in the air and fire in next door Sonoma and Napa counties, a red flag warning in Marin county, this morning’s ride was reserved. A simple Tamarancho loop with unknown effects from air quality. For today, air cleared well and it was the clearest of the week. The loop worked … Read more

Polish

I’ve mentioned and shown many times in the past that I modify my ODI Lock Jaw Clamps in a lathe. I mount the clamps on an arbor and put as large a chamfer as I can while not cutting into the screw. This serves several purposes. It softens the edge of the grip area where … Read more

SR-71 Blackbird

A year ago, after some development with the Red Five frame, I built the Concorde. It’s been a really special bike and it was named accordingly. It is a very long and super fast bike. Since this new bike is for going far bigger and much faster, there was only one name that would do; SR-71 Blackbird. The … Read more

PVD Blackbird Seat Tube OEM Order

Hey folks, Bent seat tubes have become a necessity in modern mountain bike construction. Why? Dropper seatposts take up considerable straight line space within the tube while short chainstays and large diameter wheels compete for the same space. Something has to give and it means a bend at the bottom of the tube. The problem? … Read more

Bound for glory!

I do a lot of fancy parts for bikes. I want the bikes I make to turn out just as I imagine them. Each one differs from the last. The problem with each bike being different is that it’s often not worth making tooling. This time it was worth it. I’ve been using yokes for … Read more

I am a critic

I am a critic. The clip below is from the Screen Junkies Honest Trailers and it got me thinking this afternoon. After a savage “Everything Wrong With:” from CinemaSins, and back and forth discussions with critics at ComicCon; Kong: Skull Island director Jordan Vogt-Roberts joined the fun with the Screen Junkies crew to help make this critique of his … Read more

Why butted tubes

Every now and then, someone comes up with the great idea to build a bike frame with straight gauge tubes. This is silly and a dumb idea. Here, I compare with a True Temper VER01 .8/0.5/0.8 butted tube with a section of straight gauge 0.035″ thick 1.125″ diameter 4130. Why compare a 8/5/8 tube with … Read more

TurboRamJet

More Blackbird parts are going through the system. It’s so good to see this all come toghether. This is getting very close to happening. Soon. TurboRamJet, baby. The power at the heart of the beast. After the monster job of getting chainstay yokes completed, it’s now on to the smaller parts. Head tubes will be … Read more

Blackbird Ops

It’s no secret what’s been going on in the land of PVD. Lots of design work. I’ve been working on a ton of new parts and new bikes. Moving development through the Red Five, Lightning, and Baron class bikes, a new class is born. The SR-71 Blackbird class. driven to go higher. Faster. Radder. This … Read more

Up & Down Mountains

Up & Down Mountains is a marketing thing from Transition bikes. It’s nice. It sounds like what we do on mountain bikes. I’ve been shopping around for a new squish bike recently. I sold my older 2016 Scott Genius LT 710. It was a monster, modified and pushed out to 180F/170R and a lot longer … Read more

Astro on Eclipse Day

I finally mounted the new Meade LX600 telescope to the newly fabricated pedestal in our observatory at work. This, just as the semester is starting and on the day of a major eclipse in North America. It looks so nice. It’s another great upgrade for the observatory. I now have just one last scope to isolate. … Read more

The Happy photo shoot.

I’m getting old. Fuck. A simple intercept ride to do a photo shoot. We were going to cut through Tamarancho, ride Split Rock, hike up Repack, and meet Ronen at Happersberger. We did that but the heat of the day and my fitness crushed me. I had no spunk and was in no mood to … Read more

The King of Durango

Ron Andrews is a bike industry legend. He’s been around longer than almost anybody. From the early days of Fat City Cycles to Yeti, and today, he’s the man behind King Cage, pretty much the nicest water bottle cages and accessories you can get. Besides his tooling prowess he’s a fun guy to be around … Read more

High Trail MTB

Currently, the next “big thing” in mountain bike marketing. High trail MTB. Specialized, Transition, and White have already begun marketing 29er bikes with 42mm offset forks, thus, higer trail than the 51mm forks produce. I’m sure many more marketing departments will be pushing this soon as well. This is another topic that Chris Porter has … Read more

Seven Samurai

Singlespeed bikes suck. I say that on every ride that I’m riding one. They suck especially when they are singlespeed mountain bikes. They hurt and make me feel dumb. I try to chase down enduro bros and I run out of gearing. spun out, I watch them pull away…helplessly. That sucks the worst. It always … Read more

Special Reverb Remote Bleeder

This is a cool little tool. It’s often a simple task to swap out remotes on RS Reverb systems without a full bleed. I’ve done it many times. If you’re careful, you really wont spoil the bleed. It works. One thing that helps considerably is a fully bled remote going into the process. This isn’t … Read more

The PVD 29+ Rigid Fork and Baron Update

The Red Baron is a hell of a bike. Even without a front brake it is a far more capable beast than I initially figured. It goes so fast and in control that it’s tempting to go too fast. Faster than I can steer around the next tree. No sudden stops will be made without … Read more

Mark Norstad for MBHoF

The voting for new inductees to the Mountain Biking Hall of Fame has begun for 2017. Several very qualified parties have been nominated including the great frame designer Brent Foes and legendary racer Steve Peat. This is a year with some strong contenders. Among them, Mark Norstad. To many, his name may not come to mind. … Read more

PVD StepDown Standard – Front

♬It seems I gotta start the explaining, bust it♬ For the Red Baron project, I’ve been working with some custom steel forks. It’s been a while but forks are fun little projects that don’t involve the same investment of time or money that a full frame does. For high performance, carbon is the way to … Read more

Baron Review – Offroad

Riding the Red Baron is an exercise in pure terror. When I’m not in fear for my life, I’m in dire agony. This bike is for stripped down, hardcore, black leather riding. Kill or be killed. Wartime. I’ve had the chance to do three laps around Tamarancho and a run up Loma Alta (1,600 ft) and down Solstice. Basic … Read more

The Red Baron

Here is the Fokker Dr.I 425/17. The triplane of WW1 Ace Manfred Albrecht Freiherr von Richthofen (The Red Baron) which he flew for the last 19 of his 80 kills. Legend status: 100. The Fokker Dr.1 is the namesake for this bike. Lovingly nicknamed The Red Baron. This bike is about style and chill, not being the fastest. The … Read more

Porn

Porn is an awesome thing. People doing the most incredible things with incredible bodies. Big boobs and cocks going in every direction. Upside down and backwards for hours on end. It is inspiring. It makes folks want to do good deeds. The problem with what we see in porn, and a really big problem for young people … Read more

$vanlife

I’m really excited about this. So is Windy. I’ve been lamenting not having a van for a while. When I was younger, I had a Chevy G20 van (1989?). It’s what I moved away from the Boston Area in. Eventually landing in the bay area after a year in Colorado. It was awesome. After a … Read more