Senior Member
Not sure what kind of freewheel this is or how to remove it. Anyone know? Is there a way I can replace it with a shimano mx30 freewheel or is the mx30 not compatible with this hub/freewheel setup? Thanks for any help.
Junior Member
What you have is a freehub with a single speed conversion kit. You wont be able to replace it with a regular single speed freewheel. You can remove the cog with a chainwhip and cassette removal tool and change the cog to whatever tooth count you prefer.
Senior Member
Quote:
Wow a conversion kit on a brand new bike, I didn’t know that was even a thing. I guess I’ll search 12 spline cog and see what’s for sale out there. Any recommended brands?Originally Posted by darkhorse75
What you have is a freehub with a single speed conversion kit. You wont be able to replace it with a regular single speed freewheel. You can remove the cog with a chainwhip and cassette removal tool and change the cog to whatever tooth count you prefer.
Banned
NB: getting a threaded hub, your screw on freewheel, because of the freewheel pawl mech and bearings
May not go as small a tooth count as you desire .. 16t as least..
12 spline standard is what all shimano compatible freehubs use,
they made a BMX single cog freehub,
(but specing that may have driven the selling price of the bike up)
with a multi speed cassette, they use a specific cog alignment so a narrower and wider spline are created ,
for single speed freehub they are all the same width ..
[I see a 1& 2 speed* 12 spline freehub on the Brompton's folding bike offerings.]
^*( they get 6 speeds by fitting a 3 speed internal with a 2 cog driver)
...
May not go as small a tooth count as you desire .. 16t as least..
12 spline standard is what all shimano compatible freehubs use,
they made a BMX single cog freehub,
(but specing that may have driven the selling price of the bike up)
with a multi speed cassette, they use a specific cog alignment so a narrower and wider spline are created ,
for single speed freehub they are all the same width ..
[I see a 1& 2 speed* 12 spline freehub on the Brompton's folding bike offerings.]
^*( they get 6 speeds by fitting a 3 speed internal with a 2 cog driver)
...
veganbikes
Clark W. Griswold
close
03-31-26
- Join DateMar 2014
- Location,location, location
- Posts:18,000
-
iTrader Positive Feedback0
-
iTrader Feedback Score(0)
-
Likes:15,517
-
Liked:6,506 Times in 4,313 Posts
Wolf Tooth and Chris King make some nicer cogs for that sort of thing and CK also makes a lovely SS hub designed for cassette cogs.
Kontact
Senior Member
close
03-31-26
- Join DateApr 2011
- Posts:12,585
-
iTrader Positive Feedback0
-
iTrader Feedback Score(0)
-
Likes:1,220
-
Liked:4,751 Times in 2,993 Posts
Quote:
It's really a lazy way to build a SS. Look at all that space unused.
Also, the wheel is weaker due to the narrow flange distance.
So, I got a Track hub with wide flange, to build a genuine freewheel action.
Then you have to respace or replace the frame for the 120mm hub. Why bother when this works?Originally Posted by mtb_addict
My BikesDirect SS was the same way.It's really a lazy way to build a SS. Look at all that space unused.
Also, the wheel is weaker due to the narrow flange distance.
So, I got a Track hub with wide flange, to build a genuine freewheel action.
Kontact
Senior Member
close
03-31-26
- Join DateApr 2011
- Posts:12,585
-
iTrader Positive Feedback0
-
iTrader Feedback Score(0)
-
Likes:1,220
-
Liked:4,751 Times in 2,993 Posts
Quote:
Also, I belive Track hubs are more effieicency. I believe there's only one bearing on each side of Track hub. Shimano hubs have 2 bearings on the drive side...so more bearings means more drag load.
I doubt those hubs are Shimano, and hubs don't normally have extra sets of bearings. Even if they did, they would be unlikely to make anything drag.Originally Posted by mtb_addict
It just don't look right to me. When the flange is so much unsymmetrical offset. Style is important for SS.Also, I belive Track hubs are more effieicency. I believe there's only one bearing on each side of Track hub. Shimano hubs have 2 bearings on the drive side...so more bearings means more drag load.
But that doesn't change the fact that the frame isn't built for a 120mm track hub, and may not be changeable to 120.
Banned
You have money to spend?,
there are single speed hubs for MTB frame widths, 135 ..
then the hub flanges will be more symmetrically braced. new wheel ...
I expect what you have is a cost cutting choice, which is why you went to bikes direct they're cheaper
YGWYPF.
/...
there are single speed hubs for MTB frame widths, 135 ..
then the hub flanges will be more symmetrically braced. new wheel ...
I expect what you have is a cost cutting choice, which is why you went to bikes direct they're cheaper
YGWYPF.
/...