The fixed pinion
The principle of the fixed pinion (fixie bike
) is simple. You take a bike, any type of bike, and you remove the gears and the brakes.
This minimalist bike has all the characteristics of a classic bike, however, it will only have one chain ring and one speed. The other particularity of this bike is the absence of freewheel. The Fixie user can then retropedalate to brake and the legs are constantly moving.
The fixed pinion, a sporting practice
The fixed pinion is used on velodromes where trail bike cyclists train. The fixed pinion allows athletes to develop their speed, balance and train to acquire great pedaling power.
The Fixie, an urban bike
The fixie is democratized in the big cities where cycling is the fastest means of transport compared to the other means of locomotion. In the United States, couriers use the Fixies to deliver letters.
What is a Fixie made of?
The fixie is a road bike with 700mm wheels. The shape of the handlebar and the transmission may change. For city trips, the fixed pinion has narrower handlebars in order to pass between the cars. Style is also very important, and some Fixie are true works of art that allow you to travel many kilometres! 40693
The MTB chain ring, an indispensable element of the transmission
You just received your new MTB pedals
and you wonder which chain rings you'll ride on?
The chain ring is a toothed circle that is directly attached to the cranks
. This allows you to drive the chain
and the cogset
, and advances your MTB. Also called crown, it's an indispensable element of the transmission.
There are different materials for the chain rings, most are aluminium, but there are also MTB chain rings made of steel and titanium.
There are several possibilities regarding the number of chain rings on your pedals. While triple MTB chain rigns trails are becoming rare, the double and the mono chain rings are developing.
For each practice its own chain ring
The choice of your mountain bike chain ring is mainly based on your practice and the performance you wish to have.
It's necessary to favour considerable teeth for cross-country, whereas in DH the teeth are smaller.
Finally the choice between a mono or double chain ring depends on your preferences.
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