Originally Posted by
Scooper
I've measured the Supercorsa carefully, and did it three times to confirm the rather strange geometry. Both the seat tube and head tube angles are considerably steeper than those listed on the Cinelli website for the current production bikes. I'm thinking it might be custom geo.
Here are the measurements from my 1985 Supercorsa. The STA is 73.9°, and the HTA is 75.6°. That HTA and the 43 mm fork rake with 700c - 25 tires result in a trail of 42.4 mm. I'm wondering just how twitchy this thing is going to be to ride.
The weight of the frame, fork, and headset is 6.74 pounds. Not too shabby for such a big frame.
It'll be interesting to see how this thing handles.
Because the geometry seems so extreme - almost criterium geo except for the 73 mm BB drop - I googled "1985 cinelli supercorsa geometry" and one of the hits is a 2007 review by BF member Gary Fountain. His 1985 Supercorsa has the same geometry as mine, and his review confirms my suspicion that the handling will require extra attention.
Originally Posted by Gary Fountain
1985 Cinelli Supercorsa Review
Strengths: The essence of Italian craftsmanship. Over 20 years old and yet brilliant to ride. It will always remain desirable amongst informed cyclists.
Weaknesses: The criterium geometry can be tiring as you have to watch the road and not ride into things. Then again, it keeps your mind on the bike. Centuries are out but a quick ride over a favorite course is always fun.
Bottom Line: I have owned this bike since 1985. I purchased the China Blue frame and fitted it with the best Campagnolo had to offer - Super Record. Since then I have added equipment that I considered would complement the era and the frame.
The frame geometry is pure criterium. The seat tube angle is 74 degrees while the head tube angle is 75.5 degrees. You have to be alert when you ride it as it is very twitchy and very responsive. Even with this extreme geometry it remains totally dependable at any speed (you point it and it goes there).
The weight is 21 lbs which was very good for the era. Being a larger frame, it is built with the slightly thicker walled Columbus SPX tubeset, with Cinelli lugs of course. This makes the overall weight that much more impressive.
The 'Columbo' Cinellis of the 1980's had varying quality reviews, but, I'm extremely happy with my particular frame's build quality and finish. The chrome is deep and the paint is lusterous. It still looks brand new.
It's the type of bike you can just admire for its beauty. It is still my one bike I just go and look at and I currently own 27 bikes.
I probably won't be taking it on any really long rides.
