Showing posts with label Drivetrain. Show all posts
Showing posts with label Drivetrain. Show all posts

Sunday, March 28, 2010

Voodoo!!!!









First ride, it feel different, lighter than its actual weight, it just feels lighter.

After I've got my 2nd hand voodoo frame, i love it. The feel of a steel bike is something that I can not forget, it simply climbs very easily. Stomp on the pedals and the bike will react instantly.
Parts are as follows:

1. Fame = Voodoo Erzulie "s"
2. Fork = Fox float 100 RL

Wheels
3. Wheels = Mavic Crossmax and Mavic X819 tubeless
4: Tyres: Skinny Jimmy 1.9

Transmission
5: Crank: Shimano XTR with Sugino rings 46, 34, 24
6: Brakes: Shimano XT disc
7: Shifter: Shimano LX
8: Front Derailuer: Shimano XT
9: Rear Derailuer: Shimano LX gold

Contact
10: Seatpost: Thomson 27.2
11: Handle bar: Amoeba Carbon Yan
12: Pedal: Shimano PD-520
13: Stem: Easton EA50
14: Saddle: Velo



Monday, January 4, 2010

Comparision of gearing

One of the most effective method to compare gear ration is by the use of gear inches.

In the day of high wheeler bicycles, there is no gearing. The rev per min of pedal equates to the rev per min of the wheels. The load on the pedal is determined by the diameter (radius) of the wheels.

How to do it?
1. Measure the circumference of the wheel. There are a few methods
a. you may measure the radius of the wheels with tires and multiply by 2xpi.
or b. you may roll the bike on the floor starting from the valve and end at the valve. The distance travelled on the ground is the circumference.

2. Count the teeth on the cogset. For all sprocket

3. Count the teeth on the chain ring. For all chainring

4. Make a chart of chainring divided by sprocket and multiply by wheel circumference.

5. It is done.