Columbus SLX and SPX

I pulled the BB and checked the down tube, seat tube and chainstays how Dave Moulton recommended. 6 raised spirals. It is a dirty job but now the tubing has been revealed.

Photobucket
Check out the vintage Serotta decals on the pearlized white and the ornate lug work. Anyone know what the two tapped holes were used for on the drive side Campagnolo drop out?

PhotobucketPhotobucketPhotobucketPhotobucketPhotobucketPhotobucketPhotobucketPhotobucketPhotobucket

Comments

Doug said…
Hey Eric, the holes in the dropout are for an 80s Campy doodad called the Porta Catena. A bracket sort of thing screwed to the inside of the dropout and paired up with a special rear shifter. There was a catch at the base of the shifter that allowed it to move further down/forward and the chain shifted onto the bracket. You could remove the wheel without touching the chain... Doug
6:24 PM
Eric Brandt said…
Doug,
I should have known that you would have the answer. One more mystery solved.
-Eric
4:23 PM
Post a Comment

Popular posts from this blog

Image
Fixed gear super shop. Request a specific frame size(52cm-60cm)c-t, select between bike frames all nice classic steel(Reynolds 531, Tange 1, 4130 Chromoly Steel), select preferred crank arm length(165mm-175mm), select gearing, select brake setup(no brakes, front only, full), select stem and bar. Basic package starts at $200 and includes all new (tires, tubes, chain, track cog, bar wrap). Build time is about 1 week, includes complete rebuild from frame up. If you have a vision let us help you make it a reality. Pictures include former builds and current projects. Get your Fixed Gear Fix, and rediscover the joy of riding this Spring. Classic steel will not let you down. Many of our bikes weigh less than carbon fiber and titanium super bikes that cost $3000 and up.
Read more
Image
KHS Professional The new big bike of the week. This is 63cm frame made with 531 Reynolds steel with wonderful lug work. Shimano 600 wheelset geared 42x15 for smooth cruising totally retensioned and stress relived for long lasting reliability. This bike is ready to roll, built with two levers and a single front brake for comfortable riding on the hoods.
Read more

PB&J: Pain Brings Joy

Image
As a kid PB&J was the staple fuel for everything, school lunch, picnics, road trips, snacks it was the wonder food that worked wonders.   As I aged it was still a cornerstone of simple lunches, long distance ride fuel and recovery snacks.   As I think about my annual 65 mile trek across northern Arizona it is something else entirely. Pain is often found in the training and prep to get ready for an epic day of off-roading with friends.   You must be challenged to grow.   That concept applies to your convictions as well as your fitness.   As for the fitness, I have tried the Flagstaff to Grand Canyon ride without training or preparation, lets just say I felt all of the PAIN concentrated in the death march which was the final 20 miles.   So, a fair amount of preparation can afford you the fitness to go out and do something weird, like ride a single speed, or a $12 vintage mountain bike or a gravel road bike to the finish line.    The Joy of this effort is the delivery of g
Read more