Φ Bultakenstein [Aborted]

I put the new bearings and seal in the rear wheel and sprocket carrier yesterday morning, and installed the rear tire last night. I tried this trash-bag method, but couldn’t even get … Rear tire mountedRead more

The bearings and seals for the rear wheel were delayed a week, evidently because of winter storms. I just got them Friday afternoon, and have not had a chance to put my … More suspension ideasRead more

I bought a couple of valve stems, which didn’t fit. Well, duh. Even though my wheels are cast, they’re from 1980 & 1981, which means they’re tube-type. Suzuki didn’t go to tubeless … Tube-type mag wheelsRead more

I finished my steering stops by drilling and tapping my homemade steering stop carrier for 6mm grade 12.9 socket head bolts. I wasn’t sure how much steering lock the bike should have, … Steering stops completeRead more

Ordered tires about two weeks ago. It’s my next step partially because I want to accurately measure ride height, suspension clearance, rake and trail, etc. as I finish the chassis. But I … TiresRead more

I’ve been working on steering stops the last few days. Here’s the adapter plate I came up with: I shaped it out of 3/4″ thick section of 4″ dia. 6061 aluminum. The … Steering StopsRead more

I picked up a rear shock from a Raptor 125 ATV for $30 shipped. It’ll barely fit in the space available, but the Raptor 125 weighs about 300 lbs, (which is right … New Damper ChoicesRead more

I’ve continued working on the rear suspension, and have a working mock-up. I had to go through a number of different bracket patterns as I narrowed in on what was going to … More rear suspension workRead more

Hugh Weaver’s Bultaco.com had been offering some odd-sized NOS Tarabusi piston kits @ $75 for a while on their website, which is one heck of a steal. The list fortunately included the … Tarabusi PistonRead more

I removed the spring from my XR100 damper, and then trimmed the bottom stop rubber back so the shock can easily move through it’s normal range of travel. (As a side note, … Damper Linkage DesignRead more