Sunday, 30 October 2022
Stemming..
For some time I had considered the last ever produced Campa headset in combination an old-fashioned Panto stem, but these are unfit for the modern 31,8 mm compact handlebars, and the more profiled and sizeable stems of today really look great as well, especially with appropriate marking and decoration. Here I was fortunate with the Colnago stem from Hungary, described earlier. The black would fit with the paintwork around the head tube, upper fork area and both the seat post and wheels. The mounting was a nice job and rather easy. The inner fork star flanged nut was perfectly in place and I needed just two of the four remaining spacer rings. The sloping cap to be combined with the already present and new to add bushing, which had a slanting bore allowing the stem to be placed pointing upward or more horizontally, was an easy fit. The horizontal option was the best choice in both handlebar position and appearance.
Monday, 10 October 2022
Fork and Torque..
One of the most satisfying exercises was the replacement of the headset using the Cyclus tools for driving out and pressing in the bearing cups. Good tooling really does it all. Pushing the upper bearing ring downward over the edge of the fork shaft only succeeds if executed completely straight and horizontally, so I used a stem cap which was left over from Tecnos 1. After it was pushed down over the edge, the Birzman crown race fixing ring and tube did the rest. The most challenging of all the parts to fit however, was the bottom bracket - crank combination, especially because
this was Campagnolo Ultra Torque, which was totally new to me. Ingenious as it
might be, I personally feel that 2 half axles held together with a bolt seems a
bit insecure, compared to a crankshaft in 1 piece. But I’m no technician of
course. I chose the ”Inferior” installation
method using Loctite, considering the special tool for flattening the bottom
bracket shell too large an investment at this stage. I must admit I was a bit nervous here. My
greatest concern was possible play on the shaft after mounting. With previous generations of bottom brackets, the desired tightness of the bearings on the crankshaft
could be reached by loosening or tighten the bearing housing, but with the
pre-assembled bearings on the Ultra Torque, there is no such possibility. The
bottom bracket cups need to be mounted first, tightened, and after fixation, the
2 crank units have to be placed outside-inward and fastened together with a
special bolt. At 42 Nm to be precise. Meaning everything needs a perfect fit
with no possibility for adjustment. There is the crinkle thrust washer which
compensates for the variation in bottom bracket shell widths found on various
framesets, but I was somehow still worried that this would not entirely prevent
play on the axle. So I was pretty much relieved to find a tight and perfectly
balanced, smooth running crankshaft 48 Loctite drying hours later. The major challenges were completed now..
Saturday, 1 October 2022
Parts to cling to..
From the start of
the project, I had the intention of keeping only the bare frame and selling everything else in order to have some financial compensation to support the
purchase of the new still to acquire components and wheels. So I initially advertised
on marketplace showing a picture of the complete bike mentioning all parts were
for sale except the frame. And that seemed to work out well, as soon there was
a bid which was higher than what I had paid for the whole bike in the first
place. I did not wait too long to accept the offer, informing the bidder I
would come back once all parts were available. But once they were, the bidder withdrew
the offer. I was a bit disappointed, but not really surprised. Welcome to
Marketplace. There's a lot of impulsive bidding and you're only sure once the money is received. Although in my general experience, most people are fair. I then decided to offer the parts available as loose, as a
complete group, or otherwise, to the wish of the potential buyers. There was
interest for sure, for all the parts, but against unfair offers in my opinion. The thing was that I had cleaned and refurbished all the parts thoroughly,
noting the good condition they still were in and I was really impressed by the
high quality and superb engineering of this Dura Ace generation. Also, the 3T
stem and handlebar were something special. Although the whole group and wheels
were nearly sold for an offer that may not have been too bad after all,
considering current standards, I finally decided to keep everything. Not only
due to the relatively low proceeds, but mostly because I had started to like
the parts. Just as a collection, but also with the idea that they might be used
in possible future bike restorations. Bike tinkering had meanwhile started
to become a really nice pastime..
Stem and Bar..
The handlebar was the easiest of all choices. I had immediately been very happy with the FSA Vero Compact 44mm on my new Wilier, had Tecnos 1 equipped with it as well, so Tecnos 2 would be having FSA number 3. A perfectly well designed handlebar in simple aluminum, very convenient, comfortable and affordable. The stem had to be searched for however. I wanted it black showing the Colnago logo. Not easy to find new, but I finally ran into an advertisement in Hungary, where I had found the seat post at the same time; https://www.velossimo.hu/ which proved to have quite a range of new Colnago parts.Dealing was easy via the webshop and delivery fast. The stem set had 2 bushings and 2 stem caps, of which the plain straight cap found its place on Tecnos 1. There also was a sloping cap to be combined with the other bushing, which had an oblique bored shank allowing the stem to be placed horizontally, or pointing upward. In my case, horizontal was the choice. An ingenious system. I had the bare metal bolts on the handlebar clamp replaced with black. What was left to look out for were handlebar tape and caps. So that was it.. I had all the major parts now.
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