28 Aug 2013

Max speed 42 km/h

For these days, I can get max speed 42 km/h with front chain wheel 42T and rear 11T.
I have riden for about 1900 km since this May.
When I rode about 1780 km, The screws of pedal attaching wider plates were broken. Now I use normal pedals. Off course My legs keep the length.
I use the near part of toe for pedaling like road racer.

2 Aug 2013

Changed Free Boss type sprocket

I used Shimano 7s MF-TZ21 ( 14-16-18-20-22-24-28T ) for rear free boss type sproket.
For front chain wheel, I use no maker logo 42-52T, But Front derailleur can't attached, because the BB's shaft is too longer. it is for belt drive.

My top speed is 32 km/h with front 42T x rear 14T. Now I can ride more stably.
So I want to try riding more speedy.

Then, I bought New Boss free sprocket made by DnP in Taiwan.
LY-1107HFN ( 11-13-15-18-21-24-32T ).
I rode with this sprocket in this early morning. I can get the speed 35.5 km/h with front 42T x rear 11T.
Off course, Safety driving is the first one.
Fine.

Repairing Back Fender

My back Fender was broken twice.
In the both case, the fenders were split.
The following photos are my second case.
 This Fender is for front wheel. The first back fender was split then I repaired it left 2 front fender. But it was split again.
 What's the problem ?
I bought new fender set made by Taiwan. Taiwan's is almost same level of Japan's. They are more better than China's. But China's is cheaper. That's also nice.
The V stay is rare, I think. I have never sawn it.
 Back Fender was repaired. It's easy task.
 This is the function of pop off. When big attack happen from ground, The parts will separate not to split the fender.
 I like The V stay. A pair of bolt and nut attached it.
The top of fender attached Bolt and 2 nuts and rubber sponge.
In this early morning, I observed it with riding the bike.
I think the pop off works too much. I stopped my bike for some times, and I connect the separated parts of pop off.