So you can wear out SPD cleats

Left:  SPD cleat that came with my PD-M747 pedals I bought new in 1996, I replaced the cleats after a few years thinking they were worn and later realized maybe they're not.

Right:  SPD cleat I've been riding on for 8 years, and recently started thinking it's been too easy to accidentally unclip lately.

1997, 1992 Colorado Cyclist catalogs

I hung onto this catalog cause it seemed cool at the time.  Summer 1997, I had just finished my B.S. in General Engineering, didn't have any job lined up yet, was half living in a friend's basement 1 bed apartment who was away for the summer on an internship, he'd already leased the place in May for his upcoming year starting grad school so I didn't have to spend as much time in my own $260/mo efficiency 1 room apartment.  Big arms on the cover guy, Rockshox Judy SL, Ringle parts, 20 years later I have my own 1996 Rockshox Judy XC to play around with from a bike I rescued from the trash (turns out 1996 Judy forks actually aren't that good).
 

Back then I thought this guy's hair was cool

 

Another one I held onto because the cover seemed creative.  Summer before high school senior year.  8-speed Dura Ace/Campy Record, probably Bullseye pulleys and Phil Wood hubs on there too.

Why is the garage door chain sprocket cover on the floor?

Something's not right

I took apart the opener to see if I needed to order parts or if I could fix it with local hardware store parts, decided I needed to order parts, put it back together hoping it would still work until the parts came in, and then the sprocket sheared off completely. 

Why is the shaft so skinny by the sprocket?  Oh wait.

I didn't bother tightening the chain last year after already tightening it twice in the last 7 years.  It turns out that after the shaft wears through the bushing, the lip of the plate that holds the bushing wears through the shaft from a 1/2" diameter to almost 5/32".  A Liftmaster 41C4220A kit including the worm gear and bushings for the motor output shaft ended up being $21 on ebay.

So the steel of the plate holding the bushing is harder than the shaft steel?

1996 BB-UN51 meets 2017 BB-UN55

The bottom bracket on the 1996 Trek 970SHX finally showed some bearing play.  I decided to get a new one while I still could, none of Shimano's current MTB lineup uses square taper bottom brackets anymore, even the cheapest groups use octolink now.  As usual, manufacturing of the cheapest stuff is outsourced to outside of Japan.

1996 BB-UN51:

• made in Japan
• 30mm cartridge diameter on non-drive end
• says patent pending
• steel non-drive side threaded piece (I keep wanting to call this an "adjustable cup" because before cartridge BB's the piece would be the adjustable bearing cup for loose ball bearings, and the drive-side threaded piece would be the "fixed cup") 
• drive-side threaded piece is pressed onto BB body, in less light it's clearly a different kind of steel.  The BB body looks like it might actually be stainless.
• bearing seals say "Japan, HIC, DUA"
• the instructions that came with a UN71 I bought in the 90s listed the 50-70Nm tightening torque
• solid spindle

2017 BB-UN55:

• made in Indonesia
• 31mm cartridge diameter on non-drive end
• center of BB cartridge is machined down to save weight
• aluminum non-drive threaded piece, which now has a lip that could prevent full tightening if your frame's BB shell is a little wider than spec
• drive-side threads might be cut directly onto BB body, which does not look like stainless
• it comes with useless instructions that say have the part installed by a qualified mechanic, your pants cuff may become dirty near the chain, and refer to si.shimano.com for service instructions but all they have for the UN55 is the exploded diagram.
• a few product descriptions say the spindle's hollow but I think I remember confirming it isn't

Damn chainsuck.  True Temper OXIII triple butted steel tubing.  After 1997, asian aluminum frames got so cheap that mass produced high end steel frames disappeared.  Last of the V8 interceptors.  I suppose chainsuck is no longer a problem with the dumb new single-ring drivetrains that now need stupid huge 50 tooth rear cogs.

When I rescued the 1997 GT and 1999 Diamondback from someone's trash last year, one chain was save-able.  The other was not.  Both bikes had vines growing through the back spokes.

I had to sand off the rust to ID the beyond hope chain as an IG31.  The side plates were cracking at the rivets, probably from interference fit stress winning over rust weakened steel.

There are so many thorns in the area that I started running sealant after I got 5 punctures in one day and got tired of patching.  The GT's last owner's solution was ridiculously heavy inner tubes and a Mr. Tuffy puncture liner.  I don't know where he found these tubes, they might be as thick and heavy as one of my road bike tires.  Pictured above is one of the tubes with all of the air pressed out, next to one of the ultralight tubes I used to run in the 970SHX, when it used to weigh 23 lbs.  Even with a steel frame and rack and fat rhyno-lite rims, the 970SHX still weighs less than the GT and Diamondback, both of which have aluminum frames.

What's on the workbench today

• PC sync cables to cut and solder to RJ45 sockets so I can use cat5 network cables as extra long flash sync or TTL cords
• rebuilding a Rockshox Judy XC fork from one of 2 mountain bikes someone down the street was throwing out, a 1997 GT Backwoods and a 1999 Diamondback Response SE
• the 7 and 8 speed cassettes from the bikes, cleaning the lockring gunk revealed the 7 speed to be a Shimano IG cassette with shift ramps on the back of the cogs too!
• cleaned up derailleur pulleys from the GT's STX derailleur that weren't turning at all
• repacking the bearings in the seized pedal on the GT
• topeak mountain morph pump attached to the GT with a plunger seal so dry that the aluminum body was full of aluminum dust from someone still trying to use it.
• home depot rayovac 100 lumen "indestructible" 2xAA flashlight that keeps cutting out with new batteries.
• brass punch that still isn't getting the dummy damper rod out of the Judy fork tube that was full of water that turned the crap foam urethane "springs" into dust
• ricotta cheese container with kerosene in it for degreasing bearings
• stack of crap urethane springs from the side of the fork not full of water
• I finally got a decent pair of snap ring pliers
• ninja 250 oil filter for the oil change it needs
• Toyota grill badge I found in the street to add to my collection of wheel center caps found in the street as garage decor--Audi, Cadillac, Jeep, Ford F-150 Harley Davidson Edition 

1996 Rockshox Judy XC aluminum bodied damper cartridge internals

I got the damper cartridge out of the side of the fork not full of water.  If it was the first year version with a plastic cartridge body that eventually splits, the fork wouldn't have been worth rebuilding.  But it had an aluminum body.  Promising.  Got the cartridge apart, nothing seemed wrong with it.  Refilled it with 15 weight fork oil, seems to work ok.  So I went ahead and ordered replacement metal coil fork springs from ebay.  The cartridge internals look so clean.  Like when I watch tv car shows and the rusty junkyard engine is shiny inside when they take the cylinder heads off.  When the adjustable compression damping is increased, the plate under the spring is pushed closer to the plate with the blue seal.  I didn't disassemble it, so I don't know how it's adjusting compression, if it's increasing pressure against a flexing shim, or if it's because a hole in the side of the shaft gets uncovered as the lower plate moves up.

While cleaning the parts and frames with kerosene, I found out one of the reasons why both aluminum bikes weigh over 30 pounds.  The low end Shimano AceraX and Alivio cranks both have steel chainrings!  Also, the STX and Alivio rear derailleurs have steel pulley cages.  And both bikes have massive seat post quick release clamps.

CR123a adaptor for Canon 2CR5

I made an adapter to use cr123a batteries instead of a 2CR5 battery in my 1992 Canon Rebel autofocus slr.  The 2CR5 lasts a couple of years if you keep it out of the camera when it has no film, if you leave it in the camera with no film it will die in a few months.  I needed a new one, and I didn't remember it costing $10, it turns out cr123a's are now cheaper ($1.70ea online), and 2CR5s are just a holder for two cr123a cells.  So I ripped out the 2 cr123a's out of the dead battery with pliers and made new spring contacts from thin metal.  The bottom contacts are from a broken GPS I found on Squaw Pass.

In this guy's review of a Canon Elan 7 back in the day he actually complains how cr123a's cost more than a 2CR5 .

There are some li-ion rechargeable batteries the size of a cr123a, but they're either too high a voltage (3.7V vs 3V) or they have 1/3 the amp-hour capacity.

I also found a Nikon n80 35mm body for $9 that uses cr123a's, so that gives me something else to play with that uses those batteries.

1996 Eight Speed Cassette meets 2016 replacement

My dog walking mountain bike turns 20 this year, I bought it in May 1996 after my junior year of engineering undergrad.  It's now my most ridden bike because I use it to walk the dog several miles almost every day.

Shimano 11-28 cassettes, 1996 LX, 2016 Alivio

The new cassette might be lighter, it's drilled and the 2nd largest cog is riveted to the largest as a carrier with 3 arms removed

Worn and hooked teeth on old cassette, the 2nd/4th/5th largest cogs skipped the worst

The cassette teeth were already hooking when I replaced the chain 3 years ago, along with a skipping middle chainring and a new rear wheel because the original rim split.  When I put a new 3rd chain on last week, it skipped on at least 3 cogs, so the original cassette's done.

The new cassette's made in Indonesia, I've noticed that Japanese companies like Shimano, Canon, and Sony initially make their high end stuff in Japan, and later revisions and lower end stuff are eventually outsourced to Taiwan, China, Mexico, Singapore, Malaysia, etc.  Since the latest mountain bike cassettes are 11 speed, no more 8 speed cassettes are made in Japan.
 
Pirelli also moved Diablo Rosso II 110 front tire production from Germany to China, I noticed while changing tires on the ninja 250 and also on RC390's at the KTM demo.  The vibration from the single cylinder engine on the RC390 was ridiculous.

The rear rim split 3 years ago, it's the 2nd rear rim I've worn out this way

 The ninja 250 needed a new chain last year after 25k miles, and I realized I have accumulated a chain tool collection spanning 24 years.  A 1991 Cyclo Rivoli, a 1995 hyperglide compatible Cyclo Rivoli, a 2000 Crank Bros multitool, a 2004 Park folder, and now a 2015 Motion Pro PBR