ventokevin
10-20-09, 05:36 PM
what is the point in have a smaller chainwheel rather than a bigger one?
BMX - Advantages of a small chainwheel?
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bmxkidinTexas
10-20-09, 05:59 PM
I think you mean sprocket?
but having a smaller sprocket is alot better for grinding and stuff, jsut think would you rahter have a 6 inch sprocket when grinding or a small 3 inch one?
but having a smaller sprocket is alot better for grinding and stuff, jsut think would you rahter have a 6 inch sprocket when grinding or a small 3 inch one?
MY26INCHCRUISER
10-20-09, 05:59 PM
Less drag.Less weight and looks cool
ventokevin
10-20-09, 07:22 PM
O alright thanks i was just a little confused about it.
Kodyo
10-20-09, 08:44 PM
There are also disadvantages. Like if you run an 8T or 9T driver (22/8 or 25/9 ratio), you are more likely to smash the bearings, unless they are needle bearings.
There is more torque on the drive system =>more wear on parts, parts break easier
There is more torque on the drive system =>more wear on parts, parts break easier
Street rider
10-21-09, 06:02 AM
Your BB bearings don't last very long if you run micro gearing like that. I really want to make the change to 30-11 so I can save mine.
MY26INCHCRUISER
10-21-09, 06:37 AM
I run a 25/10 ON MY MODEL-C and a 30/10 on my second wave.
Street rider
10-21-09, 01:51 PM
25-10?
MY26INCHCRUISER
10-21-09, 03:25 PM
25t chainwheel and 10t in the rear
Street rider
10-21-09, 04:19 PM
yea i know what that means...hows that feel though?
MY26INCHCRUISER
10-21-09, 04:42 PM
I like a harder gear on my bikes.My friend said it was a little hard,But It works for me.
Kodyo
10-21-09, 05:18 PM
a 3/1 ratio is perfect in my opinion. I run 36/12 right now, but i want to run 30/10 though
fuzzbox
10-21-09, 06:09 PM
I like a harder gear on my bikes.My friend said it was a little hard,But It works for me.
25-10? Wouldn't that make it easier than harder?
25-10? Wouldn't that make it easier than harder?
MY26INCHCRUISER
10-21-09, 08:33 PM
25-10? Wouldn't that make it easier than harder?
That gear is on my street cruiser.With the diameter of the tires 24.75 inches,It comes out to 61.875
My 30/10 on my second wave with the tire diameter of 20.94 inches.It comes out to 62.82
I like the ratio to be in the low sixties.
My cruiser race bike for the track has 25/11,So it winds up faster for the shorter bmx tracks.
That gear is on my street cruiser.With the diameter of the tires 24.75 inches,It comes out to 61.875
My 30/10 on my second wave with the tire diameter of 20.94 inches.It comes out to 62.82
I like the ratio to be in the low sixties.
My cruiser race bike for the track has 25/11,So it winds up faster for the shorter bmx tracks.
michaelscycles
11-08-09, 07:39 PM
Your BB bearings don't last very long if you run micro gearing like that. I really want to make the change to 30-11 so I can save mine.
What difference does the gearing make on the bottom bracket? If you run a 3-1 ratio, it requires the same energy to pedal and the same revolutions no matter what gearing you run. The bottom bracket will wear the same too.
What difference does the gearing make on the bottom bracket? If you run a 3-1 ratio, it requires the same energy to pedal and the same revolutions no matter what gearing you run. The bottom bracket will wear the same too.
FuzzyRyder
11-08-09, 11:17 PM
It doesnt have any effect on your BB bearings. It just puts more stress on your chain and your driver bearings wont last as long running 9t or smaller. Ive had the same 10 tooth driver for like 3 season still runs like new just maintain your stuff.
pnj
11-11-09, 12:23 PM
lots of good reasons for the smaller sized gearing.
1. smaller rear gear means you don't need a huge, heavy drop out to cover and protect the chain.
2. smaller front gear means it's harder to hit and hang up on things.
3. smaller front means that when you do hit it, there is less leverage, making it harder to bend.
4. lighter and stronger.
Smaller gearing and threadless (1 1/8) headsets are two of the best things to happen to bmx bikes.
1. smaller rear gear means you don't need a huge, heavy drop out to cover and protect the chain.
2. smaller front gear means it's harder to hit and hang up on things.
3. smaller front means that when you do hit it, there is less leverage, making it harder to bend.
4. lighter and stronger.
Smaller gearing and threadless (1 1/8) headsets are two of the best things to happen to bmx bikes.