The skate truck project continues to move forward in the background of the other big projects and developments. Nothing ever stops. Movement is important. Initial designs for the G6 started almost as the G5 trucks got finished. I had a lot of ideas that I wanted to get ‘on paper’ when I was setting them … Read more

Samantha Bicycle Frame Fixture

Thanks to our evolutionary push to modern bike design, back in mid-2020 I brought the PVD Cyberdyne bicycle frame fixture into the world. Since, I produced designs for the SKYNET (2021) and WOPR (2022) frame fixtures. Now, in 2023, we have the big update. Samantha !! The first 3 fixture designs were each different enough … Read more

The Adam Prosise Interview

I can’t remember exactly when Adam Prosise first showed up on my radar. It was maybe 4 or 5 years ago. I’m not sure. It was clear that he was something else. Adam really stands out in a crowd, literally and figuratively. He’s tall, 6’4″. He’s excited. He’s in the game. Chances are, you may … Read more

Frame Fixture Video Series

In my effort to make some video content, I decided to share some discussion on frame fixture design and development. I need to figure out a way to produce this kind of content without having to do too much (or any) editing. I figured some things out on this run of videos. I need to … Read more

The problem with flat mount

Last night I got a call from Ronen. He was finally getting around to mounting post mount calipers to his all-road bike. We have special conditions in Marin and the way Ronen and I use our all-road bikes push lightweight flat mount caliper brakes to their limit. Since I’m old and fat, I made the … Read more

BikeCAD Dimension Templates

I’ve decided to share a couple of my dimensioning templates for others to use. I’m thinking that this can move some others forward in an easy way. One of the more powerful components within BikeCAD Pro are the templates that a user is able to construct,  save, and share. Custom title blocks, notes, paint schemes, … Read more

The PVD Mount

It was time to take another look at a ‘problem’ long in the making. Holding crap to a bicycle frame. In the bicycle world, we’ve been using a system to hold water bottles to a bicycle developed sometime in the 1930’s(?). Little has been done since. A hole is drilled in the tube and threaded … Read more

T47 Shim Rings

These are hard to get items. I wish that that wasn’t the case because they are very important. Few discuss them. In this case, these are 50mm x 47mm x 1mm stainless steel shims for T47 bottom brackets. I need to get a few 0.5mm as I needed one today. Broad strokes still work and … Read more

PVD-RSD SRAM 8-Bolt Spider

Mountain bikes and all-road bikes are some of the harder bikes to design and build. Squeezing frame members around tires and drivetrain parts compound into many other problems to solve. One of the primary ways of alleviating this is to provide as much clearance on the outside of the bike as can be made. This … Read more

2023 PVD Northrop M2-F2 All-Road

Better. Stronger. Faster. I had two heroes when I was very young child. Mohamed Ali and Steve Austin. Ali was amazing. Steve ‘was’ an astronaut and more. It’s been quite a while since I’ve been able to put serious development time into the all-road platform. It was mid-2021 when the majority of the work on … Read more

Permeable Prints

I’ve discussed (2) some of the particularities in additive metal manufactured parts in my bikes and skateboard designs. It’s strange stuff. Since it isn’t (in a macro sense) a uniform homogeneous crystalline structure, it has some strange failure properties. It’s globular. I think of it like Styrofoam. It’s quite stiff and strong but when it … Read more

Plastic Printed Tube Blocks

In a way, one of the nice things about additive manufacturing is the long wait to get the parts. We don’t really like that wait but it’s a fact and hard to change. It takes between 20 and 30 days to get my parts from the printer from when I send off the models. Since … Read more

The tricky part about suspension gravel forks

This is some seriously nerdy stuff. Since I haven’t seen any folks discuss it so, once again, I have to. I’ve just sent files to the printer for a new all-road bike for me. After most of the real work had been done, I began fine tuning and evaluating my expectations and decisions. This last … Read more

2023 MADE Show – The Chris King Party

This was the MET Gala of the framebuilding world. I’ve been to a lot of parties at these shows, this was something else and the best yet. Everyone was there. The place was PACKED and HYPED! A few weeks before the show, the MADE organizers let us know about a couple of industry parties that … Read more

2023 MADE Show in Portland

The 2023 MADE Bike Show in Portland, Oregon this past week was set to be quite an event. Announced about a year ahead, people seemed to be getting more and more amped as the date approached. In the weeks prior, the socials buzzed with hype and excitement. Everyone was getting ready and had something special … Read more

Narrow Cranks for the Stumpjumper

This is a quick one while I’m busy modeling the new bike and about to head up to Oregon to do some press at the MADE show. Back when we were assembling Windy’s Stumpjumper one year ago, there was one detail that I didn’t address. It was the Q172 Shimano FC-7100 SLX 170mm cranks. While … Read more

Bingham’s New Shop!

Colorado road trips are pretty great! Last year we rode at Trestle Bike Park and this year we got to ride Keystone Bike Park. I was stoked for this as most folks I talked to agreed that Keystone was the gnarlier of the two. That proved to be quite true, it’s an awesome hill. As … Read more

The Wheel Tool

This is an exciting new tool for me and worth taking a look at if you build bike frames! I’ve been needing this tool since I started building my own bikes. I probably could have even used it before that. I finally got around to designing and producing it. I’m sure that many others will … Read more

PVD FM to PM Adapter

This was the last detail that needed to be sorted for the PVD Millennium Falcon build. I had left the rear brake adapter to the end of the project as I figured that I had something to work. I hadn’t . Little details escape. This happened as my memory of using a FM160 to PM180 … Read more

142mm MTB is back!

Ronen and I were discussing some details for a few of his upcoming frame building projects. He is fresh off a success in building (almost) 100% of his new Raven Caw in his own workshop. Like the Sith (see: Rule of Two), he has the twin to my Cyberdyne frame fixture. He’s just got a … Read more

Josh Ogle Interview

Windy and I were on the road. We were cutting through southern Utah on our way to the front range. We had to decide if we were going to go through Gunnison or Durango on the way to Salida before going north. I enjoy Durango and it’s generally a good stop and we chose to … Read more

Missing Links

While everyone is learning how to work with the new SRAM Transmission Drivetrain, issues arise. The trim adjustment needs to include a wider range for some reason. It’s too narrow, even when using parts within spec. Don’t ignore the high torque that is put on the mounting screw for the derailleur. 35 Nm (310 in-lb, … Read more

Carrying Water

Every time I build a bicycle, I try to take something (or many things) to a higher level. I didn’t see a detail until after I got my recent bike, the Millennium Falcon, back from paint. I wish that I had thought of it in time. I had decided to add some reinforcement washers under … Read more

Millennium Falcon!

It’s finally time for a new Millennium Falcon. I’ve been waiting to do this for when I got to an important phase in my development. ‘Millennium Falcon’ is one of the special names in infamous spacecraft category. Few names command such respect and honor. While the Falcon is remembered for it’s roll in helping a … Read more

Performance Skate Wheels

It’s finally time for this problem to be solved. I’ve been wanting this for a very long time! Now testing can begin without constraints. I’ve been contending with the availability of wheels that conform to the needs of my skateboard project. I need tall and soft wheels for ease of travel over rough road but … Read more

Fancy new head tube

After testing a new modular head tube design on Windy’s Vega MTB, I wanted to get some nice parts CNC machined so that I could get the look just right. I’ve got a new mountain bike going together for myself and it’s going to use the new parts. As usual, a lot has gone into … Read more

PVD G5 Skate Truck

Here we are again. Another draft of the skate truck. They are getting pretty. The G4 trucks were working very well and there had been enough time on them to figure out what needed to change next. Functionally, they were pretty good but there was still room for improvement. I had some changes to add … Read more

Chris King Guest House at Santa Cruz Bicycles 2023

No Sea Otter for me. I did go to the Chris King Guest House at Santa Cruz Bicycles. I was expecting something a bit bigger than last year’s event at Caletti Cycles. It was, but in a different way than expected. A smaller bike show but a bigger ‘party’ at the headquarters. An interesting crowd. … Read more

Designing at the Mill

In my workshop at the university, I’m constantly instructing students and others that designing at the mill is a fools job. It’s not where we do this work. We should be arriving at the machine with a fully sorted design with all of the issues worked out. This is obvious stuff that somehow doesn’t occur … Read more


I started this project about a year ago, almost to the week. It was going to be a big undertaking for me as I haven’t done a lot of this kind of work, or at least properly. I’m happy to learn new things but it can take me a bit of effort and time to … Read more