Conzelman Road, Marin Headlands

Conzelman Road, Marin Headlands (GoPro HERO3+)

To do a little extra climbing on my short bike ride to Battery Townsley at Rodeo Beach, after I ride across the Golden Gate Bridge, I’ll ride down Alexander Avenue then south on East Road. East Road winds it way through Fort Baker past Cavallo Point Lodge and the Bay Area Discovery Museum to Center Road and Moore Road to the beginning of Conzelman Road. There, it’s about 15 ft above sea level near the Moore Road Pier, pretty much under the north end of the Golden Gate Bridge.

As Conzelman climbs up the headlands, it passes several scenic turnouts where all those generic Golden Gate Bridge photos (with the San Francisco in the background) are taken. The road climbs up Hawk Hill for almost 770 feet in a little less than 2.5 miles to the Marin Headlands Vista Point.

If you venture down the hill past the Vista Point parking lot, you’ll be rewarded with this view of the Marin Headlands, the Pacific Ocean beyond the Golden Gate and a brief but very steep 18% drop in the road.

Campagnolo Super Record Headset

Campagnolo Super Record Headset

I removed the Campagnolo Super Record Headset from my blue De Rosa, in anticipation of getting the frame resprayed and installing the 2012 Campagnolo Chorus groupset that was on my Eddy Merckx, which I had replaced with a 2015 Campagnolo Chorus groupset. I may have changed the bearings a couple of times since it was installed in the early 1980’s.

Then I started thinking I should come into the 21st century and get a modern bike. After all, it’s been 20 years since the first Tour de France victory on a carbon bike, when Lance won in 1999 on a carbon fiber Trek 5500.

Sorting through all the choices is overwhelming and I start to think that I’d be really be happy with a titanium De Rosa Solo, but maybe not $7500 (for the frameset) happy.

Worn Chain

worn chain

Old SRAM PC-870 chain (top); new SRAM PC-870 chain (bottom).

The chain on my De Rosa started skipping on the lower gears on the Campagnolo 8 speed cassette. Unfortunately, by the time the chain was skipping, the lower cogs on the cassette were worn out.

Measuring from the center of one rivet to the rivet 23 away on a new chain is 12 inches (~30.48 cm). My chain was over 1/4 inch longer. Park Tool recommends replacing the chain when it is 1/16 inch too long.

Replacing the 8 speed cassette is a problem because of the dearth of parts, considering I need a ≥28 tooth lowest cog. I’ve found Miche 13-28 Campagnolo compatible cassettes on eBay in the UK and Italy, but then I start to wonder whether I should keep trying to support shifting components that were last produced in 1997.

I’ve also found on Branford Bike that a Campagnolo 9 speed hub could be used by dropping one sprocket and using a Wheels Manufacturing 8 speed spacer kit, but that spacer kit is also no longer available.