Laser Marking

More on the new frame fixture details… I started on this path when the employer of a friend took delivery of a fiber laser for marking parts. I would have been able to get some limited access to this but, sadly, COVID-19 ate the company up and that opportunity disappeared along with my friends job. … Read more Laser Marking

The finish line.

Advice for the aspiring designer; Have lots of patience, keep working hard, don’t ever stop! I’m currently working on producing a new fixture for making my bicycle frames (a mandrel bender also but that is another story). I need a tool that will work better than what I have been using for modern geometries, mopeds … Read more The finish line.

PVD/RAD Refined

Back in November 2019, I posted  a stream of consciousness, ending in an enlightening concept: PVD/RAD. It looked promising even in that primordial state. The problem with that post is that it was confusing and left folks with more questions about the process than the answers it could have. Six months later, I’m still excited … Read more PVD/RAD Refined


Today is my day to eat some crow. Attentive readers will know of my work on brake caliper mount locations and a tool for attaching flat mount caliper bosses in the correct location. I’ve been pretty proud of this work. It cleans up a big mess. Devin Bodony of Lichen Precision, a machinist bro that … Read more Sonofabitch

Manfrotto Mini-Me

More photo stuff… With Canon’s release (Fucking finally) of a DSLR driver for webcam use in the age of COVID-19, we have entirely new practical uses for photo gear. Quality webcam use has become very important to looking professional. You should put some thought into this. Good lighting is important. Some headphones. A decent background. … Read more Manfrotto Mini-Me

Fiftyfifty tires.

2020-04-17 All-road tire test: Subject: Maxxis Velocita AR, 622-40,120TPI, 380g, tubeless. Setup: 50psi with Cushcore CX insert on both wheels, Orange Seal endurance. WTB KOM i25 rims. Tire width measures 42.25mm on the i25 rim. Bike: PVD T-47 Airspeeder All-Road. 40/10-50 gearing. Rider: PVD, 205 lbs, fat, out of shape, expert dirt. Conditions: Dry but … Read more Fiftyfifty tires.

It is difficult to represent the seller in the paid exchange of sexual services

That’s right. Pimpin’ ain’t easy. I try to look very closely at all aspects of my riding. That’s not restricted to my bike or the trails that I’m on but also what I’m wearing. Anything can be optimized! What do you need? Make that happen. I’ve talked in the past about the need to cut … Read more It is difficult to represent the seller in the paid exchange of sexual services


This came up in a discussion the other day. I figured that I’d bring it up here as it is current in what I’ve done in a recent design. I’ve been working with my klunker platform enthusiastically and have just produced the Supermarine Spitfire which was building on the Sopwith Camel. It makes use of … Read more Flop

New carbon

Just touching base on what has been keeping me busy recently. After the Supermarine Spitfire crash, I took a deeper look at the materials that I use in my handlebars. A greater safety factor was needed at the cost of a little bit of flex. Some of these bars have been in service for next … Read more New carbon


Gambling is an art with a vicious side to it. We bet on black and by magic, we get black…over and over. We get cocky. We think we know what we are doing. Then, up comes red and we are busted again. The gambler always loses. Dunkirk. The first ride on the PVD Supermarine Spitfire … Read more Dunkirk

On mentors

It was Thanksgiving a few days ago. Thanksgiving is one of only a few real holidays in the United States and it’s probably the most important. Important, as it’s not about turkey or shopping or even your crazy aunt and uncle.  It’s about gratitude and that’s some good shit. I always try to focus on … Read more On mentors

I’m soooo RAD!

Last year, PinkBike published an article describing Lee McCormack’s concept of fitting bikes using his Rider Area Distance (LLB-RAD) method of bike fitting. McCormack describes this further on his own website. Pretty much anything PinkBike says about bike geometry or setup is wrong so I took this with an immediate grain of salt. Please, never … Read more I’m soooo RAD!

BREXIT Brakeset

I got these new brakes from the UK just before a hard BREXIT hit on Halloween. What an insane situation for a trade company. Spooky AF. #thanksobama The moving target that is mountain bikes never fails to disappoint. Everything has changed and will again. We can’t rest. Generally, things keep getting better. I’ve been saying … Read more BREXIT Brakeset

SRAM Coaxial

At Eurobike a few weeks ago, SRAM made public their Universal derailleur hanger (UDH) concept. There was a bit of hype from the marketing shills. None of it made much sense. The problems that all of the marketing people were saying it solved really aren’t legitimate problems or serious consumer problems. I didn’t think much … Read more SRAM Coaxial

OneUp 210

There’s a lot of change that’s been happening for the last 8 years or so in the world of mountain bikes. I discuss much of that on my blog here. I’m most associated with discussions on geometry and frame engineering but I do a bit in many other areas as well. Rarely do I talk … Read more OneUp 210


侘寂. Imperfection is sometimes a strange kind of perfection. We’ll see a hot rod, motorcycle, or bicycle and it is such a terrible thing in the details but in that, it’s fantastic. Producing something like that takes time, wisdom, and a little bit of luck. Knowing just what blemishes bring out the soul of something … Read more Wabi-sabi

American Irons

Every cyclist has to to fix a flat tire. For that, there’s IRON! Not all tire irons are the same. Most are terrible. I’ve been handling these things for a pretty long time. Every now and then you find some that just work well. In the bicycle world, tire levers (irons or spoons) are treated … Read more American Irons

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