I went to cycle shop to buy crank shaft which is longer one.
Because I want to use more large front gear to get more speed to get more stable.
The longer crank shaft is for belt drive bike.
Next movie is going to the shop.
This is also going version.
I came back to home and I changed the normal crank to longer one.
The chain line isn't match perfectly. Front smaller gear and rear 5,6,7th gears can't be used. But I can use biggest front gear and rear smaller 1,2,3,4th gears. Now it's enough. The new crank shaft is for belt drive one so right side of crank is longer and left side is normal. So I can't use front derailer ,too. the distance of gear and seat post is too wide. But that's not problem. smaller front 2nd gear is 38T. I don't almost use it, I think.
Then I tried to ride. The crank's length is 165 mm. it's shorter one,too.
By using shorter cranks, My legs can reach to pedals more easy.
I added toe clip. In here japan, road for walkers has many steps.
when we ride a bike on such road, we often repeat step up and down. In
that case, my feet leave from pedal ! that's danger situation.
If tomorrow will be sunny, I will try them.
Today, I ride for 14 km.
I have pain in my back and on my right knee. I need more muscle power.
Good job, me !
Fine.
