Thursday, August 30, 2018

unscheduled detour

Mom needed a new frame. This top tube sits 5" lower and has a more modern geometry than the automatic shifting "Landrider" that it is replacing. A steeper 69.5 head angle and a 30mm drop replacing the 67* HA and 13mm drop. A straight 1.125" steerer fork replacing the old 1" threaded. 
I still might convince her to ditch the clunky shifting derailleur and just do a single speed in back and two gears up front. I noticed that she only really rides in the 16t in back and uses the 36t and 46t shifter up front for the few areas on the greenbelt with moderate hills




 The one-off dropouts required recessed areas for the hanger and its chainring bolt. I actually used a 1" hole saw in the mill to machine the surface of the hanger's recessed area and had pretty decent results.

Thursday, August 16, 2018

Dialed 26"ers

Dialed 26"ers: 23" trans gunmetal and 22.5" Coffee

                                                





















23" top tube and 22.5" top tube, 17" (432mm) and 16.5" (419mm) reach:

44 inset headtube  (ZS 44/28.6/EC44/40)


69 HA, 74 SA, 
25mm BB drop
14.7" CS, 
Euro threaded 73 BB, 
25.4 seatpost size
Supertherm tubes
designed for a 23-26t sprocket but a 32t can work with a slightly angled chainline.
Fits a 2.3" slammed amd a 2.4" tire at ~15"


I'd have made more frames but I'm out of disc dropouts at the moment. My old water jet place got rid of the competent workers so I'll have to go to the laser cutters and hope that things get scaled right etc.

Monday, August 13, 2018

3-4" bars

 I have 3", 3.5" and 4" bars for sale as well as the 6" black branch bars. 10* back, 3* up and ~31" wide for the 3-4" bars.
 These are the 3.5"

 Below are the 3 and 4"




 The DJ frames have 14.7" slammed chainstays. The same geometry that I've always recommended but with a tapered capable head tube. The rigid street frames will have the old BMX headtube.

A few dirt frames close to finished. The dirt frames will be two sizes and feature tapered steerer headtubes, Supertherm main tubes, and shorter chainstays than any other DJ frame available.

The street frames are getting started in a few days. I'll be making several street frame and forks based on the geometry of my rigid bike.


Wednesday, August 8, 2018


 3", 3.5" and 4" ready for coats

                                           

Wednesday, August 1, 2018