Tuesday, July 13, 2010

Stage Two

To say that my first experience riding the Sherpina, in an observed trail, was a complete flop is an understatement. Most of this can be contributed to my lack of experience riding trials. Oh sure I'd farted around on other peoples modern trials bikes and I've even done some time as a section observer. I knew the rules from that point, but I knew nothing about the technique. Additionally I knew squat about how a trials bike should feel. Now throw in the fact this was a modern observed trial, thus even the novice sections are a challenge for a vintage bike. Sure, there are guys who ride vintage bikes in modern trials, but these guys have been riding the same bike for 30+ years. Anyway you know what they say about excuses. They're like assholes, and they all stink. One thing this humbling experience did teach me was that the Sherpina needed a lot more work.

Having both German and Scottish heritage can be very perplexing when it comes to mechanical objects. The German in me wants it to look and run perfect. The Scotsman in me doesn't want to spend a dime. However there's nothing like getting your ass handed to you by some 60+ year-old geezer riding an old Yamaha TY250 held together with duct tape and bailing wire, to shut the Scotsman up. The next day I ordered more parts.

Most important, at this point, was getting some Renthal Vintage Trials bars. These bars have a taller bend than the freebies I had scored earlier. The may have been free, but my lower back was killing me from riding like the hunchback of Notre Dame.

I also splurged for a set of Sammy Miller front fender mounts and used the plastic front fender I had bought a few years earlier from Maier. This fender was actually made for the Sherpa-T and looked pretty decent when mounted up.

Finally I spluged for new sprockets. There was very little wear on the, most likely, stock sprockets due to the sub-20 horsepower of the Alpina. Unfortunately even first gear was too high for the slow-going needed for observed trials. I stuck with the standard 11-tooth front sprocket, but added a 50-tooth rear aluminum sprocket. Also a new 520 non o-ring chain was added as the previous chain was now too short. This dropped the overall gear ratio allowing for crawling around in first gear through most sections.

Right side of the Sherpina following Stage Two.

Left side of the Sherpina following Stage Two.


After all this work it was time to start riding some trials and do some testing and repairs.

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