2011年11月15日星期二

How to choose the small car travel gear disk

How to choose the small car travel gear disk

In your trip, you are often encounter the most difficult conditions: steep hillside plus pain ass and hypoglycemia. This time, you will find that the benefits of small gear disks.

Here I simply said once: tooth disk is to use a called "gearing inches" digital to said. A 100-inch tooth disk for downhill is the best; 70 inches relatively suitable for the ground; And 40 inches used in general mountain climbing. If you climb mountain to reach 2 miles or more and you already feel tired and you need to choose 25 inches of 20 and gear disk.

For example, Cannondale relatively cheap station wagon 25 inches with small teeth set, while relatively expensive point bicycle is equipped with 21 inches. Bruce Gordon of small gear may be BLT 19 inches.

Flywheel just of 9 pieces of

When I was young, variable speed car only four of the flywheel. When I got my first one, variable speed car, it is the flywheel is five pieces. Later, the number of pieces is more and more, now you can see have 11 piece (such as racing parts Campagnolo group). More common are Shimano and SRAM is described 10 chip flywheel system, this weekend with the car in now leisure is common. But, why not choose the most of the flywheel piece?

There are several reasons, but I am focusing on said a, is can the flywheel cooperate with the use and chain. The flywheel piece now becomes more and more thin, chain also follow to become thinner. When chain become thin, it is more easily broken.

The flywheel piece or less, the chain is seldom broken. Now the situation is very common broken chains. So I prefer the flywheel settle in the station wagon of 7 or 8 chip. But my counterparts and I have argued, the results I lost. Now we think, we can accept 9 pieces of the flywheel, no more than that!

9 and 10 of the flywheel of flywheel chain of width and durability has very delicate function relation. 9 the chain of relative to strong a lot, but you still need to prepare the chain tools, and before you start learn to use.

I am writing this article observed when the vehicle is 9 pieces of the flywheel. If you buy relatively cheap hybrid or mountain bike as station wagon, in that your flywheel number of pieces may be less--if it really is, that I think is very good.

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