Wednesday, November 9, 2011

Techie Tuesday: R&R Handlebars

The old ones (Performance Bike Shop Forte') broke under the Syntace C3 aerobar clamps. Hope the new ones (Ritchey SuperLogic Evo Carbon) won't. PBS stood by their Satisfaction Guarantee, so aside from all the labor, only a $60 hit to my pocketbook. Nothing wrong with the Forte' bars for normal use, but not up to aerobars.

PBS's house brand bars Forte was bucking under the aerobar clamps

Brake cables run in the bar's cable hides, and shifter cables run along backside of bar. Each cable was trial fitted, taped into place using 3M electrical tape, and then function tested before any bar tape was applied.

L and R brake cable swapped so front brake and 10-gears are in my right hand. Shifter cables also swapped and then crossed under the downtube. This gives the rear deraulleur cable a straight path from headtube to end of chainstay.

MagicShine mount attaches along side of the stem. Yeah, there's a LOT going on here. Old bars had cables threaded through them, so every last cable had to be unthreaded. The brakes and drivetrain then had to be readjusted after installation. What a massive PITA.
Another angle
Pretty clean. The cables are trimmed to within a mm of their lives. I doubt I can flip the stem without recabling at this point, but I loathe messy cabling and the drag it creates. MagicShine is ~ right in front of toptube and  battery pack strapped to top of toptube.
Clean cockpit. Slip the Garmin into it's mount and we're wheels-up in 30 seconds.

Not wanting to take any chances on the new bars, I used the same trick on the aeorbars I used on my perpetually sliding Easton seatpost - I shimmed the clamps with 1500 Wet-or-Dry sandpaper, turning the grit side to the main bars. This dramatically reduces the amount of clamping pressure needed to keep the aerobars from moving. I especially like that this also comprises a compressible shim, so the take-up on the tightening is more gradual, and easier to judge.

The spray bottle hanging off the left handlebar is to keep the bike from tipping over when standing straight up so I can even up the aerobars. Nice trick. When you get aerobars where you want them,  roll the bike into a doorway, place a level across the ends, and mark their height. No matter what happens with handlebars and stems, it makes a great starting point for adjusting the aerobars.

I rode the bike up to Beals Point a couple of nights ago, and am very happy with the bars. The aren't noodley like the Forte, but are still soaking up a lot of road chop. The reach is perfect, but the drop is a lot less, and I need to push the drops forward and out to get more room in the cockpit. With aerobars, you seldom need deep drops, but a middle position is nice for climbing into a wind in a position where you can still breathe well.

Thursday, November 3, 2011

Change in the Weather

The first real chill of the season rolled in last night. I beat the storm by a few hours to get in my first ride in almost 2 weeks. Speaking of a change in the weather, the Occupy Wall St people in Oakland shut down the port yesterday, the 5th largest in the US. Everyone of those shipping containers represents thousands of US jobs gone to China. I wish them luck, and since CCR was a Bay Area band I thought this video doubly appropriate.



I did a very hard ride up to the Rescue Firestation on the 16th last month, and between the dehydration, and getting a bit too Paleo on my recovery meals, I had a long flair-up of diverticulitis. My usual ride time is around 4:15, although I have some old pre-Garmin stats from April, 2009 done in 3:35.

That's not quite apples-to-apples though, as shut-off times at stops are a little different, so I was really happy when my first long ride of the year came in at 3:45 for 60 miles and 5,200ft of climbing. (RideWithGPS's mapping service still doesn't know about the Folsom Lake Crossing Bridge, so adds 300ft erroneously) I was able to get the whole ride in with the Garmin set to 1-second update mode, so trust this is my best, most accurate trace ever.

Rescue Firestation ride. A horned devil of a climbing route. Throw in a climb over the ElDorado Hills and you get a real ball-buster I call "The Grim Reaper"
My time to RFS was withing seconds of my usual time, but the time on the return leg averaged over 4mph faster. I think I'm capable of breaking 3:30 on this ride, but have yet to do so. Failing to carbo load properly the night before, I was pretty sluggish for the first  20 miles or so. Reason for hope!

This was the first long ride away from the city since my crash, and it went quite well, but I seem to have cracked a rib or something after hitting a really savage bump that's developed on the ARPT descending from Beals. My PBS Forte' carbon bars also buckled under the aerobars, and my main bars rotated down about 35 degrees.

That said, it was thrilling to get back out there last night, and since my new bars showed up this morning, I'll be wrenching while it's raining. I went with the Ritchey SuperLogic Evo bars from Excel Sports, as they are advertised as sturdy enough to support clip-on aerobars. Techie Tuesday fodder for sure.

I'm enjoying reading Friel's Paleo Diet for Athletes, but it is disappointing in places in its lack of rigor. There's a lot of good info on sports nutrition, and even some great recipes, but I'm having trouble eating that much meat and giving up milk. His argument against dairy is just pathetic, and I luvs my milk (although I am drinking 2% now to get more fat in my diet).

With the cool weather, it's a great day to make a big pot of chili. Using what I learned from Friel, I am using grass-fed beef, buffalo, and 99% lean ground turkey breast. Turkey breast has almost no fat, is a higher quality protein than chicken or fish (although fish as other properties that make it preferable), and is about $6 a pound.

I'll have to try my microwaved bell pepper, red onion and ruby red grapefruit juice marinated chicken breast with cranberry juice and turkey breast substituted. I'll use lots of good, healthy olive oil when reducing the veggies. A great way to swap healthy oil for animal fat.

Hope you are all coping well, and enjoying the change in the weather.
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Wednesday, October 26, 2011

Techie Tuesday: G.I.T Lit for Saftey

I continue to use, and refine my G.I.T Lit lighting system, and have added a much more powerful light to my helmet after a SUV looked right over the top of me, and pulled out into an intersection I was making a left-hand turn through. That's the Universe giving you a warning shot across the bow. Ignore such warnings at your own peril. You often don't get a 2nd chance on those.



At the end of the day, what makes any system a success is the way motorists react to you. I almost always get 5 ft, and many times, as much room as a small car now. What makes the addition of this Blackburn MARS 3.0 light so effective, is it's made to provide good lighting as motorists close and pass.

Taillights with very narrow beams are exactly what you want for the "G" in G.I.T - to Grab motorists attention from a long way off, and for that I just upgraded my half watt Planet Bike Superflash to a 1 watt Superflash Turbo, and it's a substantial upgrade. In fairness, the Blackburn MARS 4.0 looks comparable. The mounting bracket slots aren't compatible though, so it was easier for me to stick with PB.

As drivers close to within 100 yards, they start to fall out of the field of view of those very narrow beams, and cyclists are getting hit in spite of having bright taillights because the motorists lose sight of them as they come along side to pass. The MARS 3.0 was designed to eliminate this lighting system weakness.

I left the optic fiber ribbon on the helmet, but turned it forward so it silhouettes the helmet, thus addressing the "I" in G.I.T Lit - IDENTIFY.  With both the helmet lights flashing in synch, and with the PB Superflash Turbo flashing it's own separate and distinct pattern, and the MagicShine lighting the road and front of the bike, it's obvious from the way motorists are reacting that they understand within a second or two that they are looking at a bicycle.

This lighting system has produced a bigger change in motorists behavior than anything since wearing a helmet and Spandex shorts back in the late 1970s. When Quad-Cab diesel dualies towing backhoes are leaving 8-10 feet when passing, and watching in their mirrors before pulling back into your lane, you've got yourself one hell of a lighting system.

A jersey or jacket with reflective piping would only add to that, but at this point, it's really unnecessary. This system IDs you as a bicycle almost instantly, so motorists know what to expect from you, and how they might need to react. You can almost hear the sigh of relief as they pass. Lots of friendly waves, smiles and curiosity. They really don't want to run you over on the way home, and they seem to genuinely appreciate how easy this system makes their job.

Spongy rubber strip rolled up and wrapped in electrical tape, and a wooden dowel. No beauty awards, but very, very effective and helps keep the front of my helmet up in the bargain!
I have tried to show the details of how I mounted the Blackburn MARS 3.0 light ($17)on my helmet, but all helmets are different, so be gentle so as not to damage your helmet, and expect to use some trial-and-error to get a good mount. You may also like the MARS 4.0, but it relies on only 2 LEDs, so not sure that's the best choice.

Mount the light facing straight back. As you lower your head, down in the drops (or aerobars), you're still be looking straight ahead, so the helmet's always going to be level. Your neck makes the adjustment for you.

When you turn your head to clear a turn, or look at a driveway, a helmet light queues motorists about your intentions, and the ribbon's silhouetting really improves this feature of helmet-mounted lighting. Just remember, you can always turn your head sideways to make the helmet more visible to oncoming traffic, or cars coming out of driveways. It works like magic!

The metal pin shown here allows you to turn the light slightly towards the driver. A good idea IMHO.
Like all taillights, the light slips right out of the mount for turning on or replacing batteries, although I can turn this one on without stopping or removing just by reaching back and pressing the button twice (1st press is solid, unlike the PB, which is flash) to get it into flash 1 mode (there's also a flash-2 mode), which is in perfect synch for the PB optic fiber ribbon.

Light turned slightly towards motorists so they don't lose sight of me while passing. The Blackburn MARS 3.0 light is engineered for 180 degrees of visibility, but mounted this far back, provides at least 220 degrees, and can almost be seen from head-on.
 Do yourself a huge favor, and order some Sanyo eneloop NiMH rechargeable batteries. They don't self-discharge like regular NiMH, so if you don't use the light for a month or 6, no problem, the batteries will still work just fine for 150 (lying bastards!) 12 hours or more. It really sucks to go for a ride after a week or two of foul weather, only to discover that all of your carefully planned lighting is DEAD.

UPDATE: 3/8/2012: The claims that this, and many other taillights, will go for 50 hrs in constant, and 150 hrs in flashing mode are complete and total lies. You can easily prove this for yourself. Simply turn the light on and observe that after 12 hrs the light is so degraded it's no longer effective. Since flashing mode uses 2 additional LEDs on Planet Bike's SuperFlash, and SuperFlash Turbo, don't expect more than 24 hrs out of those in flash mode.

After doing my own fatigue test, my life flashed before my eyes about a dozen times as I realized that on those occasions, the reason cars crowded me is my taillights were far, far too dim to provide adequate coverage. Not a great feeling.

Tuesday, October 18, 2011

Techie Tuesday: Drivetrain Maintenance

After a rather nasty mis-shift, I've been trying to work a gremlin out of my drive train. I started by inspecting the chainrings and cassette gears for broken or bent teeth. I couldn't find any, so next I looked at the derailleurs, shifters and cables. I then inspected the frame route for the front derailleur cable, and found a problem.

Where the front derailleur cable comes through the frame there is a hole. Pretty stupid design, as it should clearly be a mtb style rubber seal, but there it is, and it was filthy and packed with sand, dirt and sticky dried oil and Gatorade.

Here's a nice video showing how to clean that hole and the thru-frame cable guide.



You should also clean the guides for both the front and rear derailleurs that run under the bottom bracket, as being at the bottom of the frame, they get fouled by Gatorade that spills on the frame and runs downhill.
Chain on biggest rings, shifters positioned to relax cables for max slack, makes for easy cleaning of BB cable guides. Note pedal tether to prevent shifting.
This is a big problem area, and monthly cleaning and oiling will make your shifting fingers much happier. A toothbrush is a great tool for cleaning the BB routes, as is a good terrycloth hand towel on the tip of a straight-bladed screwdriver.