The front end got wheel spacers and new tire this morning, so I mocked it up for a preliminary geometry assessment and then rolled it outside. 34″ seat height and 48.5″ wheelbase. … The Bride is a rollerRead more
Year: 2021
Rear wheel mounted
After measuring a bunch of times, I conjured up the gumption to cut into the swingarm. I went slow, with a hack saw, and actually managed to make a perpendicular cut. I … Rear wheel mountedRead more
More lathe work
I chucked up the sprocket carrier again and moved the sprocket face about 6mm inboard, to bring the rear sprocket in line with the idler sprocket. Now I need to modify the … More lathe workRead more
Idler sprocket
I gave up on installing a true jackshaft in favor of a single idler sprocket. There simply isn’t room for it without extensively modifying (almost completely re-engineering) the swingarm pivot. Beyond that, … Idler sprocketRead more
Spec’ing brake parts
One of the cool things I want to do is build this bike with no foot controls. The shifter-less torque converter makes it an option, so — why not? As a bonus, … Spec’ing brake partsRead more
Rear sprocket modification
I re-drilled the CRF150R rear sprocket to match the EX500 bolt pattern. I used the sprocket carrier as a jig and used a transfer punch to mark where to drill. The new … Rear sprocket modificationRead more
Speedometer mock-up
I bought a speedometer from a Suzuki GZ250 and set it on Bultakenstein to see how it looks. It’s a bit on the large side, but the angle and placement are nice. … Speedometer mock-upRead more
More jackshaft design work
Instead of an actual jackshaft, someone suggested I mount a single, freewheeling sprocket on the swingarm pivot. That’s an excellent suggestion, and definitely worth considering. For right now, however, I’m going ahead … More jackshaft design workRead more
Progress photos
I rolled Bultakenstein outside for some progress shots, to keep me motivated. Chassis fabrication is basically complete; now it’s on to engine work, intake, and exhaust. There have been a lot of … Progress photosRead more
Revised steering complete
I got the front end back from my local welder, all nicely TIG’d up. I started working on a new steering stop adapter to fit the revised steering stem setup. Once the … Revised steering completeRead more