cranks go backwards?

"Andy Kriger" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

When I roll my bike backwards, the cranks turn backwards. As far as I know (and I could easily be
wrong about this), the cranks shouldn't turn when

my

Quoted message said:

bike rolls backwards (it's not a fixie). So, do I need to overall my

freehub?

Quoted message said:

my rear hub?

thx andy

Nope. What's happening is normal. When you roll the bike backwards, the pawls in the freehub grab
causing the crank to turn backwards. When you rotate the cranks backwards by hand, the pawls don't
grab. So everything's
O.K., not to worry.

Andy Kriger said:

When I roll my bike backwards, the cranks turn backwards. As far as I know (and I could easily be
wrong about this), the cranks shouldn't turn when my bike rolls backwards (it's not a fixie). So,
do I need to overall my freehub? my rear hub?

If your cranks turn forward when you push the bicycle forward then you have a non-free freewheel.
That would require your attention. What rotation do you expect your freewheel to resist?

Jobst Brandt [email hidden] Palo Alto CA

Andy Kriger said:

When I roll my bike backwards, the cranks turn backwards. As far as I know (and I could easily be
wrong about this), the cranks shouldn't turn when my bike rolls backwards (it's not a fixie). So,
do I need to overall my freehub? my rear hub?

Uh, no. That is normal.

--

David L. Johnson

__o | If all economists were laid end to end, they would not reach a _`\(,_ | conclusion. --
George Bernard Shaw (_)/ (_) |

Well, andy, you were RIGHT when you wrote this "(and I could easily be wrong about this), " :-)

The cranks ARE supposed to rotate backwards. If they didn't, how could you pedal the bike forwards?

Hope you are out riding today and having a great time.

Lewis.

.........................

Andy Kriger <[email hidden]> wrote in message
news:<[email hidden]>...

Quoted message said:

When I roll my bike backwards, the cranks turn backwards. As far as I know (and I could easily be
wrong about this), the cranks shouldn't turn when my bike rolls backwards (it's not a fixie). So,
do I need to overall my freehub? my rear hub?

thx andy

In article said:

Andy Kriger said:

When I roll my bike backwards, the cranks turn backwards. As far as I know (and I could easily
be wrong about this), the cranks shouldn't turn when my bike rolls backwards (it's not a fixie).
So, do I need to overall my freehub? my rear hub?

If your cranks turn forward when you push the bicycle forward then you have a non-free freewheel.
That would require your attention. What rotation do you expect your freewheel to resist?

There is one extremely oddball exception, worth mentioning mainly for the curiosity value. Some
freestyle BMX bikes are designed with "freecoasters", hubs that do not turn the cranks when the rear
wheel moves backwards. This is because in some tricks, the bicycle is moving backwards.

--
Ryan Cousineau, [email hidden] sfu.ca~rcousineOpen ↗ President, Fabrizio Mazzoleni Fan Club

In article <[email hidden]>, [email hidden] says...

Quoted message said:

There is one extremely oddball exception, worth mentioning mainly for the curiosity value. Some
freestyle BMX bikes are designed with "freecoasters", hubs that do not turn the cranks when the
rear wheel moves backwards. This is because in some tricks, the bicycle is moving backwards.

Interesting. I wonder how these work. How do they catch when you are pedaling?
------------
Alex

"Ryan Cousineau" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

In article said:

Andy Kriger said:

When I roll my bike backwards, the cranks turn backwards. As far as I know (and I could easily
be wrong about this), the cranks shouldn't turn when my bike rolls backwards (it's not a
fixie). So, do I need to overall my freehub? my rear hub?

If your cranks turn forward when you push the bicycle forward then you have a non-free
freewheel. That would require your attention. What rotation do you expect your freewheel to
resist?

There is one extremely oddball exception, worth mentioning mainly for the curiosity value. Some
freestyle BMX bikes are designed with "freecoasters", hubs that do not turn the cranks when the
rear wheel moves backwards. This is because in some tricks, the bicycle is moving backwards.

--
Ryan Cousineau, [email hidden] sfu.ca~rcousineOpen ↗ President, Fabrizio Mazzoleni Fan Club

Some freeriders that do bmx style stunts have been putting rings of PVC in place of one of their
smaller chainrings so they don't have to backpedal on landing, too. Apparently it works pretty
well, but it must be kind of disconcerting to shift into your little "ring" and have your cranks
just spin....

Jon Bond

Andy Kriger <[email hidden]> wrote in :"]news:[email hidden]:

Quoted message said:

When I roll my bike backwards, the cranks turn backwards. As far as I know (and I could easily be
wrong about this), the cranks shouldn't turn when my bike rolls backwards (it's not a fixie). So,
do I need to overall my freehub? my rear hub?

thx andy

thx for all the responses (and so gentle too). like i said - "could easily be wrong" (and WAS).
maybe i'm not taking in enough cals and my brain is becoming extra fuzzy or maybe the grey wet skies
of NYC (what is this Seattle?) are getting to me.

-a

Is this a troll post? LOL! When you roll thre bike BACKWARDS, it's no different, mechanically, than
if you turn the cranks FORWARDS.

You're engaging the pawls either way. IOW, there's nothing wrong with your freewheel, do not attempt
to adjust the picture...

May you have the wind at your back. And a really low gear for the hills! Chris

Chris'Z Corner "The Website for the Common Bicyclist": geocities.comczcornerOpen ↗

This is normal cause the cranks drive the chain, when you pedal forward. If you roll the bike
backwards, the casette drives the chain. It is the same principle. Different direction means
different Rotation, because in both cases the power grabs in the same way between hub and casette.
And the source of power is the opposite one in the respective case.

"Andy Kriger" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

When I roll my bike backwards, the cranks turn backwards. As far as I know (and I could easily be
wrong about this), the cranks shouldn't turn when

my

Quoted message said:

bike rolls backwards (it's not a fixie). So, do I need to overall my

freehub?

Quoted message said:

my rear hub?

thx andy

Alex Rodriguez said:

[email hidden] says...

Quoted message said:

Some freestyle BMX bikes are designed with "freecoasters", hubs that do not turn the cranks when
the rear wheel moves backwards.

Interesting. I wonder how these work. How do they catch when you are pedaling?

The drive mechanism is the same as any coaster brake hub-- that is, by friction between conical
surfaces drawn tightly against each other by pedaling. The difference is that the braking mechanism,
which works in the same way when the pedals are rotated backwards, has been neutered in a
freecoaster.

No coaster-braked bike will revolve its pedals backwards on being rolled backwards unless the drive
is engaged at the time.

Chalo Colina