Wednesday, May 4, 2011

Mt Hamilton Challenge

131 total miles, 8000 feet total elevation gain, 12 hours 25 minutes total time (10 hours 30 minutes on the bicycle)

It was time for my first big challenge in a long time. This was the third year I have attempted this ride, but I did not do it last year because I was not in shape enough at this point in the season. I am still not in my best shape, and have only found time for medium-length training rides sandwiched by annoyingly long stretches of bad weather and illness. In preparation, I rode an 80 mile, 6000 feet ride the previous weekend. Having done that without significant problems, I felt that my conditioning was in place for this one.

One problem I found on that previous ride was that my bicycle needed new tires. I got two flats in my rear tire, which I was able to fix because I usually carry two spare inner tubes with me. I also developed a rear flat at the end my last long ride. Getting frequent flats is an indication that the tire rubber has gotten too thin. Before this year, my last flat was almost two years ago. I have put on nearly 6000 miles on the current set of tires, which were the originals when I got the bicycle. This is much longer than most people hope to get from a set, so it was clearly time to change. I made sure to ride the bicycle to work the week before to ensure that the tire mounting was good.

6:15am, 0 miles, 0 feet

I woke up at 4:30am, got ready, ate a couple donuts, and had my father drop me at the start. I checked in, dropped off my packed food, and got underway. The morning air was a bit cool, but since the day was expected to warm up, I decided to shiver in my long sleeves for a while rather than put on my jacket.


The loop was ridden counter-clockwise.


The forecast was for clear, warm weather, and I had not noticed any prediction of strong winds. But, before reaching the first climb, we experienced some very powerful gusts. One blew me from the right side of the road completely to the other side, and almost off. I was about to dismount when it subsided. This did not bode well for the day, since fighting the wind can be miserable.

On the 4000 foot climb up to top of Mt. Hamilton, I made sure to pace myself. On previous rides I ran out of energy by the end, so this time I wanted to avoid that scenario. It was tempting to speed up while other riders were passing me at periodic intervals, but I forced myself to operate at about a 70% exertion level. (This is just an estimate since I do not wear a heart monitor.)

Still, the rest stop at the top was not as crowded as I had experienced previously, so I was ahead of the pack. It helped that I started before most riders also. I made sure to sit in the sun because the steady wind was cold on the summit.

9:50am, 35 miles, 4300 feet

The other side of Mt. Hamilton is much steeper, so it is usually a fast descent. I was most worried about wind here, because a sudden crosswind while descending at speed can be treacherous. Fortunately the air was much more still on this side of the mountain.

The remote, beautiful San Antonio Valley on the other side of Mt Hamilton.
Photo by Bill Bushnell.

This part of the route is the most scenic. The empty rolling hills and expansive meadows belie the area's proximity to a major urban center. With all the rain we received this past winter, everything was green and wildflowers were everywhere. Since there are no cross roads and no destinations besides several big desolate ranches, there is virtually no traffic. The only people on the roads were out for a scenic drive. There were many motorcycles, and there was one convoy of classic MG and Triumph cars.

12:35pm, 63 miles, 6300 feet

The second stop was at the halfway point. Most of the climbing was done. Although I had no problem eating at the previous stop, I had little appetite now. My digestive system usually slows down under heavy exertion. Still I did manage to eat the food I had packed. I had a hummus sandwich on white bread (simple carbohydrates and protein), potato chips (carbohydrates, fat, and salt), cookies (carbohydrates), and a soft drink (pure sugar). All of it was the "energy food" that I needed.

The stop was simply a small clearing by the road. Everyone leaned their bicycles against the barbed wire fence while they sat on the ground to rest and eat. At one point, a group of four of five large brown horses came running up to the fence and abruptly stopped. They sniffed all the bicycles on the fence near them, probably attracted to the salt of the riders' perspiration. They intently stared directly at the people near them who were eating, hoping for a handout. I was about ten feet away when one stood and stared at me for a while. When it became clear that I would not offer anything, it blew its nose at me. Fortunately I was upwind, so none of his mucus reached me or what I was eating.

2:50pm, 91 miles, 6300 feet

The next stretch was a long, mostly gradual downhill coast. This allowed me to relax and recover some energy. We descended from the hills down to the town of Livermore. Then we went along the city road west to the town of Pleasanton, where the last official stop was.

The wind was more calm here, and it was bright and warm. I finally took off my arm warmers. To this point it was too cool to be in just a short sleeve jersey. Now my appetite really was gone. Knowing that the next stretch contained the final climb, and that was where I previously ran out of energy, I knew I had to force myself to eat.

It did not help that all day the swirling winds had blown dust, pulverized leaf bits, and other grit in my mouth. This gave me a bad taste that I could not flush. Instead of the 15-20 minutes rest I took at the previous stops, I spent about 30 minutes here in the hopes that the relaxation would kick-start my digestion. I did manage to eat (most of) another sandwich and chips, but I packed the cookies for home.

5:20pm, 115 miles, 8000 feet

I paced myself in the flat section approaching the final climb to conserve energy. The gradual, 1000 foot ascent would normally be an "easy" climb for me, but the question was how many functioning muscle fibers were left in my legs. Surprisingly, there were more than I expected. Instead of putting in the lowest gear and crawling, I was able to keep a steady pace in third gear. Though not particularly fast (I passed no one, three riders passed me), it was much better than I thought. I had plenty of energy and my legs were functioning fine.

As usual, I stopped at Ed Levin Park. This is not an official stop but it has a restroom and I usually need to use it by this point in the ride. But it was just a quick in-and-out because I did not need to rest, and it was downhill and flat the rest of the way.

6:20pm, 126 miles, 8000 feet

I reached the finish feeling good. I was able to keep a relatively fast pace on the final flat section. I checked in, received my ride patch, and headed home. I opted not to have anyone pick me up at the finish since it is an easy 4 mile ride back home.

6:40pm, 131 miles, 8000 feet

I have to call my ride a success. I was worried about my conditioning but had no problems. My final time was very similar to the last two times I tried it.

Now I need to decide what other major rides to to this year. The only one I have signed up for is the Seattle to Portland ride this July. That one is 200 (mostly flat) miles over two days. I should have no problem staying in shape for that. I will probably do one or two local events before that.

Friday, February 18, 2011

Repeat: Two Rock Valley Ford 200KM Brevet

125 miles, 4160 feet elevation, 10:55 total time (9:15 on the bicycle)

My first major ride in the last three months was the same as the last one I did — the Two Rock Valley Ford 200KM Brevet. This is a good route to be the first big ride of the season because it is long and only moderately hilly. This allows me to objectively assess how much conditioning I lost over the winter.

Since Thanksgiving, I have been cycling infrequently. There was the traveling to see relatives over holidays, busy weekends in between the traveling when home and family priorities took precedence, the flu, and seasonal rain. The time I was able to make for training were rides in the range of 20 to 50 miles. I generally avoided some of the steeper roads which I usually train on because steep descents are COLD in winter. Plus I wanted to avoid slippery or deteriorated roads. I stuck to riding the more moderate hills.

My friend Gabrielle reminded me that this ride was happening last weekend and that she was riding it. It happened that I had no other plans for the day so I registered for it at the deadline — the preceding Wednesday.

The route started in San Francisco (lower right point), and we traversed the loop counter-clockwise.

I left home at 5:30am and reached the start point by 6:30am. I checked in and found Gabrielle. We chatted and caught up with each other's activities since we last met. Unlike the same event in the fall, the sun was up before we started at 7:00am.

7:00am, 0 miles

Gabrielle and I were in one of the lead groups that departed. The immediate uphill climb to the south end of the Golden Gate Bridge worked well to warm our bodies and fight off the morning chill. I kept the fast pace for about 15 miles, but then decided I needed to go slower to preserve some energy. Gabrielle sped off with the rest of the group and I never saw her again. I decided to let my legs dictate the pace I would keep for the rest of the ride.

10:00am, 43 miles, 2080 feet

The first stop was at a convenience store in Petaluma where I ate a donut (a good source of pure energy). Since I knew from last time that the store does not have a restroom, I used the facilities at the public park across the street. I was actually five minutes ahead of the pace of last time, due to the initial fast start I had. Although the day was warming up, I decided to keep my jacket and leg warmers on, at least until the next stop.

11:40am, 61 miles, 2480 feet

The next stop was in the tiny town of Valley Ford. Just like last time, I loaded up on simple carbohydrates by eating a small box of crackers and a bottle of soda. It was finally warm enough to take off the leg warmers and jacket. At this point my pace was still five minutes ahead of last time.

2:00pm, 84 miles, 3220 feet

The final intermediate stop was in Point Reyes Station. Here my pace was noticeably slower than before. I was now ten minutes behind last time. Like I usually do here, I ate a big cheese sandwich and another bottle of soda. By now my conditioning loss became apparent. I actually maintained a good energy level so I was not particularly tired, but my leg muscles had nothing left. They felt totally shredded.

All the remaining hills, including the smaller ones, were a struggle. I kept it in my lowest gear and cranked the pedals with whatever my legs could manage. On one uphill section at the 98 mile mark, I felt a slight but odd bouncing sensation. I examined my rear tire and saw that it was not flat, but that it had lost most of its air. Clearly it must have had a very small puncture causing it to lose air slowly. Considering that it still managed to keep some air, I decided to NOT replace the tube but rather to pump more air and see how long it would carry me. I guessed that if I only had to pump it back up two more times before I finish, then this would save time over the work involved in replacing the tube.

As I expected, around the 111 mile mark, I could feel that the rear tire was low on air again. And again, I simply pulled over and pumped it up. I did this again (for the last time) at the 120 mile mark. The day had definitely cooled down by this point and was getting dark. I could have put on my outer layers when I stopped to pump, but I was racing the sun and did not want to lose any minutes that would make me finish in the dark. Instead, I simply pumped frantically and jumped back on.

5:55pm, 125 miles, 4160 feet

The sun had set by the time I reach the finish, but there was enough twilight that I did not need my lights. However, by the time I officially checked in and returned to my car parked one mile away, it had gotten dark.

So the objective measurement of my conditioning loss is that my time on the bicycle was 25 minutes more this time than it was three months ago. The 45 minute increase in overall time also included the three sessions of tire pumping and some increase rest time at the stops. This is not too bad for the first big ride of the year. It should take only a couple more big rides (and several intermediate length ones in between) to get my conditioning back to where it should be.