Friday, November 17, 2017

I ride the fat bike on four wheeler trails mostly, as there is more elevated/interesting terrain available. I found this old cable winch machine while plowing through the swampy woods, escaping the deeper tire track mud holes.

This bike is for riding rocks, mud and sand. It sat out in the rain on a beach in Florida for a week. It has fallen off a twenty foot cliff at Bull Creek in Austin. The bottom bracket bearings creak from being washed out in three foot creek crossings. Hastily replaced dropper post aside, I pretty much neglect the thing and it doesn't fail. These cheaper Origin8 tires are heavier, require less air pressure and are more resistant to thorns and sidewall damage than my thinner expensive tires.

Aesthetically, the seatstay bends are ugly but add a bit of elasticity/compliance. My next one will probably have the smaller diameter 16mm seat stays in the nromal "S" bend for a similar amount of compliance.

Thursday, November 16, 2017


If you want a geared AM bike frame in any specified wheel size, my price is ~$1800.

Monday, November 13, 2017

DJ forks

It looks like Fox is killing the Marzocchi brand. They do supposedly have options for a Fox 36 with 26, 27.5 and 29 in straight or tapered steerers. So hopefully there will be manufacturers support of three wheel size and steerer options in the future... and hopefully that 15mm axle just goes away at some point.

I picked up some Marzocchi DJ1 forks in case anyone wants one (they're going fast and will likely disappear soon). I consider them the best value dirt jump fork in terms of cost, longevity and ability to withstand neglect.

Thursday, November 9, 2017

Lots of options. I'll put the completed frame into Photoshop to figure out a few possible designs for a "patriotic" paint scheme

Monday, October 30, 2017

Bert's 650 plus

The stainless dropouts solved the (powdercoat build-up) tolerance issues that I had with the last plus bike. 

Much of the riding in Texas consists of creek adjacent trails, as there isn't much public property and the acreage that is spared is usually in a flood plane.

 In east Texas this means that every few years the trails get washed out and replaced by sand dunes. Bigger tires and wider rims allow us to run lower tire pressure and float through sand that would otherwise grind momentum to a stop. The mid fat bike is a compromise for sand floating and cornering ability: While the bigger 4"+ fat wheels float on sand better they can be sluggish and have an over-steer characteristic.