freewhell info wanted

[2020mad]

What is the smallest size freewheel you can get for a normal rear wheel without having a casette hub ? cheers.

[billstup]

13 t I think 

[TwoBobRob]

But that 13 tooth freewheel will not go on a good old fashioned hub...  I made that mistake   


I stand to be corrected, but I think a traditional flip flop hub has the smaller threaded area on one side of it which will accomodate the wee freewheels.

I think   

[2020mad]

Its just your old standard screw on type hubs ive got.   what about a 14T ? or am i stuck with 16T?

[billstup]

You are right Rob, a normal freewheel only goes down to 16 t, but I thought 2020mad ment what is the smallest freewheel that goes on a hub that is not a casette hub, i.e a threaded one  

Perhaps we need more info  

[TwoBobRob]

You're stuck with yer 16 I'm afraid.  I thought I could run a 15t on my Superpro hub - Nope!   

[2020mad]

Hmmm guess i won't be fitting 28T chainring tommorow then,  28-16 ratio a bit stupid.
Will have to start saving a bit more for some new wheels.

[Nana]

You need a 10 to run a 28 teeth sprocket but it various but nowt by much you can run a 10x28 ,29,30,31 most common on new rides are 13x36

[Rombloke]

ok the easiest way to work out gearing is to head for an average ratio of 2.75.
this is acheived by diving the front sproket size by the rear

i.e 44 / 16 = 2.75


so if you wanted to run a 28 tooth front, then that needs to be divided by the 2.75 which equals 10.18.....so as nana says you will need a ten tooth driver.

44/16
42/15
40/14
39/14
36/13
33/12
30/11
28/10
25/9
22/8

hope that helps....i feel nerdy now

Dave

[power]

the smallest freewheel you can use on normal size threaded hub is 15 http://www.alansbmx.com/product_info.php?products_id=1179
you will need a flip flop hub to go smaller than that

[2020mad]

Thanks

[TwoBobRob]

the smallest freewheel you can use on normal size threaded hub is 15 http://www.alansbmx.com/product_info.php?products_id=1179
you will need a flip flop hub to go smaller than that

Aah.....  Specialist item.  Nice.  £20?  even nicer.  Wish i'd seen that....