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Diablo Scott's Bike Blog
Cycling Mt. Diablo
Friday, May 08, 2026
Saturday, May 02, 2026
Classic & Vintage Group Ride up Mount Hamilton
I heard about this ride through several of my social media accounts. It's been a long time since I rode Mt. Hamilton, and I decided this would be a righteous challenge.
The folks that organize it are general vintage bike enthusiasts, and while that's not exactly my focus, I certainly qualify. In fact - the question frequently comes up "How 'vintage' is vintage enough?" so I developed this scorecard below. This will not meet with universal approval, but it gets most of the way there. I usually explain to non-cyclists that the dividing line is about the era where building bicycles was a craftsman enterprise and ended in the era of exotic materials, aerodynamic components, and machine assembly. This scorecard is not copywritten - I authorize its use by anyone who wants to post it for whatever reason. Mention me if you're feeling generous. I propose a minimum score of 60 to qualify for C&V events.
Tuesday, April 14, 2026
2026 Diablo Day 17 - Tuesday Morning Junction
Managed to somehow bugger up the SD card in the Diablo Bike Cam so I don't have any ride photos - but here's one of a poppy I picked on the way home:
Charlie's going to Holland for vacation and to watch the Amstel Gold Race - he said he got a hotel right on the race course. We talked about Monuments and Classics and exercycles and airports. We saw some soaring birds that we thought might have been condors... unlikely but one day maybe. Here's a cool story about Condors on Diablo... LINK
There was a road crew just above the Kiosk where it looked like they were removing a downed tree or something. I stopped on the way down to get a photo (see Paragraph 1) and talked to a guy with a hardhat and shovel - he said the culvert just filled up with dirt and they had to clean it out - the big pile of debris looked like sawdust.
I over-dressed with tights and winter jacket - it wasn't too bad going up though; I just unzipped everything. On the way down the wind was kind of tricky so that put the kibosh on my pretend Pitcock descending skills.
Wednesday, April 08, 2026
2026 Diablo Day 16 - Wednesday Morning Junction
On Saturday I discovered my flat repair from last Thursday's ride didn't hold and I had a tube to fix it but then I wouldn't have a spare so I cancelled the Diablo ride and went to SportsBasement for some new tubes. Far fewer choices than there used to be thanks to the tubeless tire revolution (HA!)... but they had some that were fine and now my seat pack is packed again.
Me and Charlie are trying to make Wednesdays a regular thing... it was certainly nice today.
Wildlife Encounter: turkeys, deer, vultures, really fat squirrels.
There are still a few poppies dotting the hillsides - smaller and farther apart now.
Looking at some spring showers in the forecast, good thing I'm flexible.
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| I wondered what this fellow was thinking about - sure wasn't his own safety. |
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| Charlie put the hurt socks on right from the start. |
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| Team VeloRaptor did a re-group at Junction and Charlie took club photos for them. |
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| Vulture gulch never disappoints. |
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| This atrocious driver received some angry admonishments! |
Thursday, April 02, 2026
2026 Diablo Day 15 - Thursday Morning Junction
Charlie and I were hoping to ride on Wednesday, but the rain was just a little too proximate... didn't get heavy until about 1pm but today was pretty nice. There were a few chilly sections, but I had my Belgian socks and arm-warmers on to remind me how tough I am.
Nothing eventful - a normal number of riders, a normal number of drivers, no weirdos.
Wildlife Encounter: one turkey.
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| 1. Wonky knee 2. Belgian socks |
Then on the way home - off The Mountain and in traffic, I had a heart-stopper... my front tire went soft and I didn't realize it until I was making a fast turn in traffic and I heard that aluminum on asphalt sound and I got that unmistakable squirmy feedback. Took all my skills, but I saved it. Video below:
#thelastflatigot
Stopped around the turn, pulled off my wheel, found a sharp thingie in my tire and dug it out. Opened up the bead and pulled out the tube. That was a Pirelli TPU tube... must be 5 years old. I remember buying two of them when Sports Basement didn't have any latex ones so they gave me a good price. My saddle bag had two spare tubes one latex and one butyl - I went for latex just because. Also had all the right stuff for a quick change so it wasn't a big deal, but I gotta repack my bag now.
Saturday, March 28, 2026
2026 Diablo Day 14 - Saturday Morning Junction
Wednesday, March 25, 2026
2026 Diablo Day 13 - Wednesday Morning Junction
Wildlife Encounter: LOTS of turkeys.
Me and Charlie met at St. Tim's... it would be nice if this turned into a regular event, but he has some international travel plans, so it won't be THAT regular - at least for a while.
I had more stamina than last week, but my power spikes have a pretty short timespan... I can put out some extra Watts when necessary but then I dip back down too soon.
Met a pair of chatty riders at Junction - we talked about the old days, when things used to be NORMAL.
Then another guy started a conversation about unicycles on Diablo... we didn't have much to add.
The MDSP page said that some California Condors are headed toward Mount Diablo and maybe they would take up permanent residence here - that would be pretty cool.
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| Cathy and Becky - normal names |
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| Charlie and vulture at Vulture Gulch. |
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| Condor photo by Save Mount Diablo |
Wednesday, March 18, 2026
2026 Diablo Day 12 - Wednesday Morning Junction
At the end of Monday's ride when I encountered Charlie, we decided Wednesday would be a good day to do a Junction together. Charlie's been travelling and not training his hardest so I figured I could keep up with him, but I was clearly the weaker one.
Wednesday morning rides might be kind of a nice new-normal... we'll see.
Saw quite a few riders, but nobody I knew.
Wildlife Encounter: turkeys
Roadkill report: snake
On the way down, a vulture flew over my head - I didn't see it, but it cast a big shadow across the road that startled me because I thought it was some kind of ground animal crossing in front of me. My years of experience in these situations kept me from a panic skid.
In the afternoon I attended a webinar by Trek Travel about gravel bike vacations... thinking about a bucket-list trip to New Zealand... it was enticing.
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| EBMUD laying pipe in my neighborhood. |
Monday, March 16, 2026
2026 Diablo Day 11 - Monday Morning Junction
HEAT WAVE! Burnin in my soul! I had some lame excuses for not riding over the weekend, so I made up a reason to ride on Monday. Pretty quiet up there. Just a bunch of old retired folks.
Roadkill Report: snake... barely worth mentioning.
Saw Charlie out on a ride on the way home and we got caught up and decided to think about doing a ride together soon.
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| This is the view you see when it's time to shift into the BIG RING. |

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| Hey - is that Charlie on Old Orchard? YEAH! |
Thursday, March 05, 2026
2026 Diablo Day 10 - Saturday Morning Junction
Kevin said "Let's ride!" so we rode - on a Thursday!
It was a little chilly so I went with tights and long sleeves but no jacket.
We met on DIABLO ROAD and then we RODE DIABLO!
Wildlife Encounter: bunch of turkeys, two deer, some more turkeys, and a snake.
We were about half way up to the Kiosk when I started to get cramps in my calves... so we stopped and I took off my tights and massaged the legs a little and then took off again. It was warmer but windy up high. Poppies and lupines at BBQ Terrace.
At Junction we met Diablo Legend Keith... we talked about old man knees and mechanical shifting.
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| If I'm being photographed... I'm putting on my game face! |
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| Keith |
















































