Yes, that cog is the same that broke on my bike. I screwed it on so that the cog is on the inside and the small flange is on the outside. I have a suspicion that the thin flange can't take the torque so maybe if the cog abuts the axle housing then this might work better. there doesn't seem to be an issue with allignment. How do I post a photo? that would be worth more than me droning on.
Mayhem called to offer me a new bike, which I accepted as I don't know how long my franken-A-bike will hold up.
I drove to work on it today and it was great. The weather has turned balmy up to 20 C from the -18 C last week.
I gave Mayhem my hands on analysis of this fracture; the cog, the breaking off of the axle etc. The drive chain is the heart of bike and should be tested to much higher engineered failure then I experienced.
When I was racing and working on bikes in the 70's. It was a real renaissance period of cycling. Alloys, carbon fibre, multiple gears, bike geometry, mountain bikes etc. were all being experimented with. As you might expect there were lots of unfortunate and sometimes spectacular mishaps. I was in a road race when a cyclist in front of me on a mountain incline snapped his titanium chainset axle. A painful lesson. But look at what we have today. I can buy a bike for under $100 with Shimano gears, quick release and alloy parts that should last for years.
The A-Bike is an important innovation and we are taking it on the road and the community at large. My excursion into it's inner workings has been a great adventure and I am excited that we are at the cutting edge of this transportation technology.
John
Yes, that cog is the same that broke on my bike. I screwed it on so that the cog is on the inside and the small flange is on the outside. I have a suspicion that the thin flange can't take the torque so maybe if the cog abuts the axle housing then this might work better. there doesn't seem to be an issue with allignment. How do I post a photo? that would be worth more than me droning on.
Mayhem called to offer me a new bike, which I accepted as I don't know how long my franken-A-bike will hold up.
I drove to work on it today and it was great. The weather has turned balmy up to 20 C from the -18 C last week.
I gave Mayhem my hands on analysis of this fracture; the cog, the breaking off of the axle etc. The drive chain is the heart of bike and should be tested to much higher engineered failure then I experienced.
When I was racing and working on bikes in the 70's. It was a real renaissance period of cycling. Alloys, carbon fibre, multiple gears, bike geometry, mountain bikes etc. were all being experimented with. As you might expect there were lots of unfortunate and sometimes spectacular mishaps. I was in a road race when a cyclist in front of me on a mountain incline snapped his titanium chainset axle. A painful lesson. But look at what we have today. I can buy a bike for under $100 with Shimano gears, quick release and alloy parts that should last for years.
The A-Bike is an important innovation and we are taking it on the road and the community at large. My excursion into it's inner workings has been a great adventure and I am excited that we are at the cutting edge of this transportation technology. :P
John
