Gears in the drivetrain of a bike.

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3
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1answer
4k views

What are the advantage of the different gear shifters

I have just buy for the first time a road bike (Boardman Team Carbon) after long years on hybrids bike and unfortunately due of a injury I didn't have much time to experience with it. The bike has a ...
3
votes
2answers
2k views

What's the shortest / easiest “granny gear” available?

What's the range on granny gears - the innermost, smallest front chainring?
5
votes
2answers
582 views

Do you need to lubricate gears after cleaning gears and chain?

I just cleaned my gears and chain with a biodegradable degreaser. I'm going to lubricate my chain. Do I also need to lubricate the gears or do I just pedal and make sure that I hit all gears? Will the ...
8
votes
1answer
572 views

Chain clicks when the back wheel is in highest and lowest gears

When I have my back wheel gears in either the lowest gear or highest gear, my chain clicks as I peddle. How do I fix this?
11
votes
6answers
4k views

How many effective gears do I have on a 21 speed bike?

I have a 21 speed bike (a hybrid commuting bike). But AFAIK, this does not mean that I have 21 different gear ratios. Is there any way to calculate the different gear ratios?
14
votes
3answers
1k views

Should I clean the grease off the gears?

I usually keep my chain well lubricated. However, my gears are usually greasy. Should I be cleaning the gears or are they supposed to be greasy?
7
votes
1answer
875 views

Rear Derailleur Cage Lengths

What effect does the length of the cage on a rear derailleur make to bike setup/shifting?