E-Bikes
Nothing worked well for me this morning but I finally managed to fix my flat. I opted for a new tube and will patch the recent nail finder. I struggled to get the tub and the tire liner in the tire. I finally remembered a trick I read somewhere and tried it with great success. The new tube was just tacky enough that it kept sticking to the liner. That made it impossible to get each properly oriented. Baby powder on the tube made it just slick enough to slide tube this way and that to get everything in place. Worked like a charm.
Giving the drive chain close scrutiny while the wheel was off was down right depressing. The rear gear cassette is shot. Checking the chain it is also shot. Doing my research, all of the wear items have a life of around three thousand miles. Twenty three thousand was a bit more than ever designed to last. All modern chains are exactly one half inch from rivet to rivet. The tool I ordered wouldn't tell me how worn out the chain was. Far more than the tool was designed to measure. I took a rule to the chain. Across 24 rivets should be exactly 12 inches. My chain measured 12 5/16. The call it chain stretch but in reality is is the rollers wearing out allowing an increase in distance between them.
Here is the alarming find of the day. The sensor is on the far side of the chain as it pass from derailleur to the cassette. No amount of chain flop would effect the sensing. The sensor is looking at the nineth gear ring... the one closest to the sensor. I almost exclusively ride in the nineth gear. The worn out chain has almost worn the teeth off on the nine ring. Instead of lookin a like a series of slotted screwdrivers with valleys between them, they look like a bunch of spikes. If they are so bad that they aren't always counted by the sensor... problem solved. It has to be replaced no matter what or retire the bike. A new chain that I'll have to make shorter, the tools to make it shorter and to take the old chain apart, a new 9 speed cassette and the tools to remove and replace the old one will be close to two hundred dollars. That's a lot to spend on an old bike but it will make a fun project. The specialized tools for the job represent half the cost. Their is the bummer part of the project. I will need the chain tools again.. Three thousand miles isn't diddly for me. The tools for the cassette replacement will likely never be needed again. Oh well.
I didn't get to ride much today. By the time I got the tire remounted I was running short on time before my son and his wife were coming over. It was a nice day but I only logged 24 miles.
Two things happed yesterday that I failed to mention. As I was passing over the bridge that spans a railroad track there was a train heading away from me. It was car after car of cargo containers. As I was in full view of the aft of the cars, one container had the rear doors swinging in the breeze. I could see boxes stacked from floor to roof but none within eight or ten feet of the doors. Only a few boxes were on the floor leading to the open doors. I highly suspect the rest of the cargo was scattered up the tracks. I stopped near my town to get my handkerchief from my trunk to blow my nose. I no more got off my bike when a motorcycle pulled up and a guy asked if everything was okay. He was just like the guy the other day. He had seen me often and when he saw me stopped he felt inclined to check on me. Pretty nice of those guys. Where were they when I was walking my flat bike home lol.
Giving the drive chain close scrutiny while the wheel was off was down right depressing. The rear gear cassette is shot. Checking the chain it is also shot. Doing my research, all of the wear items have a life of around three thousand miles. Twenty three thousand was a bit more than ever designed to last. All modern chains are exactly one half inch from rivet to rivet. The tool I ordered wouldn't tell me how worn out the chain was. Far more than the tool was designed to measure. I took a rule to the chain. Across 24 rivets should be exactly 12 inches. My chain measured 12 5/16. The call it chain stretch but in reality is is the rollers wearing out allowing an increase in distance between them.
Here is the alarming find of the day. The sensor is on the far side of the chain as it pass from derailleur to the cassette. No amount of chain flop would effect the sensing. The sensor is looking at the nineth gear ring... the one closest to the sensor. I almost exclusively ride in the nineth gear. The worn out chain has almost worn the teeth off on the nine ring. Instead of lookin a like a series of slotted screwdrivers with valleys between them, they look like a bunch of spikes. If they are so bad that they aren't always counted by the sensor... problem solved. It has to be replaced no matter what or retire the bike. A new chain that I'll have to make shorter, the tools to make it shorter and to take the old chain apart, a new 9 speed cassette and the tools to remove and replace the old one will be close to two hundred dollars. That's a lot to spend on an old bike but it will make a fun project. The specialized tools for the job represent half the cost. Their is the bummer part of the project. I will need the chain tools again.. Three thousand miles isn't diddly for me. The tools for the cassette replacement will likely never be needed again. Oh well.
I didn't get to ride much today. By the time I got the tire remounted I was running short on time before my son and his wife were coming over. It was a nice day but I only logged 24 miles.
Two things happed yesterday that I failed to mention. As I was passing over the bridge that spans a railroad track there was a train heading away from me. It was car after car of cargo containers. As I was in full view of the aft of the cars, one container had the rear doors swinging in the breeze. I could see boxes stacked from floor to roof but none within eight or ten feet of the doors. Only a few boxes were on the floor leading to the open doors. I highly suspect the rest of the cargo was scattered up the tracks. I stopped near my town to get my handkerchief from my trunk to blow my nose. I no more got off my bike when a motorcycle pulled up and a guy asked if everything was okay. He was just like the guy the other day. He had seen me often and when he saw me stopped he felt inclined to check on me. Pretty nice of those guys. Where were they when I was walking my flat bike home lol.


