Smaller Chainrings available?

[[email protected]]

hi, wanting to get a smaller inner (double) chainring for my wife's
bike than the 39t it came with. question is, how much lower teeth-wise
would i have to go for her to notice much at all when climbing?
already has a 12-27 cassette in the back.

likewise, anyone know where to get such a smaller one for a double?
seems like most retailers only have 39t.

thanks

 

[me]

<[email protected]> wrote in message
news:[email protected]...
> hi, wanting to get a smaller inner (double) chainring for my wife's
> bike than the 39t it came with. question is, how much lower teeth-wise
> would i have to go for her to notice much at all when climbing?
> already has a 12-27 cassette in the back.
>
> likewise, anyone know where to get such a smaller one for a double?
> seems like most retailers only have 39t.
>
> thanks
>

39T is the smallest inner for most common double cranks. Get her a
so-called Compact 34-50 from anybody, and with that 27 in the back it will
climb walls.

Jeffrey

 

[sally]

In article <[email protected]>,
<[email protected]> wrote:
>hi, wanting to get a smaller inner (double) chainring for my wife's
>bike than the 39t it came with. question is, how much lower teeth-wise
>would i have to go for her to notice much at all when climbing?
>already has a 12-27 cassette in the back.

On a standard crankset, the smallest chainring you can use is 39T.
To go smaller, you will need a new crankset (either compact bolt circle
or triple chainring).

If you have Shimano shifters, a cheaper solution may be to get a mountain
bike rear derailleur and cassette (up to 34T).

 

[John Forrest Tomlinson]

On Mon, 24 Jul 2006 21:30:39 +0000 (UTC), [email protected] (sally)
wrote:

>In article <[email protected]>,
> <[email protected]> wrote:
>>hi, wanting to get a smaller inner (double) chainring for my wife's
>>bike than the 39t it came with. question is, how much lower teeth-wise
>>would i have to go for her to notice much at all when climbing?
>>already has a 12-27 cassette in the back.
>
>On a standard crankset, the smallest chainring you can use is 39T.

Just about. If it's a Shimano crank or other Japanese crank, a 38 can
sometimes be put on. But that's probably not enough to spend money
on.

JT

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[[email protected]]

buy a 34 rear cog, drill the cassette, take a lower out and out the 34
in
assemble it inside out
with 34 and buddy in the middle!

 

[David L. Johnson]

On Mon, 24 Jul 2006 14:20:55 -0700, batesrt wrote:

> hi, wanting to get a smaller inner (double) chainring for my wife's
> bike than the 39t it came with. question is, how much lower teeth-wise
> would i have to go for her to notice much at all when climbing?
> already has a 12-27 cassette in the back.

You might notice that the bolts that hold that chainring on are right next
to the teeth. Can't go any smaller. OK, you might find a 38 that will
fit, but it is not worth the expense.

You need to either go for a pie-plate cassette or a compact crankset,
which would let you get a 34-tooth inner ring. That would give a
significantly lower (13% lower than a 39) low gear.

--

David L. Johnson

__o | "It doesn't get any easier, you just go faster." --Greg LeMond
_`\(,_ |
(_)/ (_) |

 

[R Brickston]

On Mon, 24 Jul 2006 21:13:12 -0500, "David L. Johnson"
<[email protected]> wrote:

>On Mon, 24 Jul 2006 14:20:55 -0700, batesrt wrote:
>
>> hi, wanting to get a smaller inner (double) chainring for my wife's
>> bike than the 39t it came with. question is, how much lower teeth-wise
>> would i have to go for her to notice much at all when climbing?
>> already has a 12-27 cassette in the back.
>
>You might notice that the bolts that hold that chainring on are right next
>to the teeth. Can't go any smaller. OK, you might find a 38 that will
>fit, but it is not worth the expense.
>
>You need to either go for a pie-plate cassette

You'll also need a long cage rear der and a longer chain.


>or a compact crankset,
>which would let you get a 34-tooth inner ring. That would give a
>significantly lower (13% lower than a 39) low gear.

 

[[email protected]]

R Brickston wrote:
> On Mon, 24 Jul 2006 21:13:12 -0500, "David L. Johnson"
> <[email protected]> wrote:
>
> >On Mon, 24 Jul 2006 14:20:55 -0700, batesrt wrote:
> >
> >> hi, wanting to get a smaller inner (double) chainring for my wife's
> >> bike than the 39t it came with. question is, how much lower teeth-wise
> >> would i have to go for her to notice much at all when climbing?
> >> already has a 12-27 cassette in the back.
> >
> >You might notice that the bolts that hold that chainring on are right next
> >to the teeth. Can't go any smaller. OK, you might find a 38 that will
> >fit, but it is not worth the expense.
> >
> >You need to either go for a pie-plate cassette
>
> You'll also need a long cage rear der and a longer chain.
>
>
> >or a compact crankset,
> >which would let you get a 34-tooth inner ring. That would give a
> >significantly lower (13% lower than a 39) low gear.

Dear RB,

Er . . . maybe you're thinking of installing a larger rear cassette?
That might require a long cage rear derailleur and a longer chain.

But the original poster will be shortening his chain, not lengthening
it--he and David are talking about smaller front chain rings.

And changing to smaller front chain rings won't require a long cage
rear derailleur.

Cheers,

Carl Fogel

 

[R Brickston]

On 24 Jul 2006 23:05:06 -0700, [email protected] wrote:

>
>R Brickston wrote:
>> On Mon, 24 Jul 2006 21:13:12 -0500, "David L. Johnson"
>> <[email protected]> wrote:
>>
>> >On Mon, 24 Jul 2006 14:20:55 -0700, batesrt wrote:
>> >
>> >> hi, wanting to get a smaller inner (double) chainring for my wife's
>> >> bike than the 39t it came with. question is, how much lower teeth-wise
>> >> would i have to go for her to notice much at all when climbing?
>> >> already has a 12-27 cassette in the back.
>> >
>> >You might notice that the bolts that hold that chainring on are right next
>> >to the teeth. Can't go any smaller. OK, you might find a 38 that will
>> >fit, but it is not worth the expense.
>> >
>> >You need to either go for a pie-plate cassette
>>
>> You'll also need a long cage rear der and a longer chain.
>>
>>
>> >or a compact crankset,
>> >which would let you get a 34-tooth inner ring. That would give a
>> >significantly lower (13% lower than a 39) low gear.
>
>Dear RB,
>
>Er . . . maybe you're thinking of installing a larger rear cassette?
>That might require a long cage rear derailleur and a longer chain.
>
>But the original poster will be shortening his chain, not lengthening
>it--he and David are talking about smaller front chain rings.
>
>And changing to smaller front chain rings won't require a long cage
>rear derailleur.
>
>Cheers,
>
>Carl Fogel


Dear Carl,

I was replying to:

> >You need to either go for a pie-plate cassette

with:

> You'll also need a long cage rear der and a longer chain.

You wrote:

>Er . . . maybe you're thinking of installing a larger rear cassette?

Er . . . yes, I am. That would be the "pie plate" cassette mentioned
above.

Perhaps I should have been more clear and written: "If you choose to
go with the larger cassette, you will need a... etc."

RB

 

[[email protected]]

On Tue, 25 Jul 2006 06:21:54 GMT, R Brickston
<rb20170REMOVE.yahoo.com@> wrote:

>On 24 Jul 2006 23:05:06 -0700, [email protected] wrote:
>
>>
>>R Brickston wrote:
>>> On Mon, 24 Jul 2006 21:13:12 -0500, "David L. Johnson"
>>> <[email protected]> wrote:
>>>
>>> >On Mon, 24 Jul 2006 14:20:55 -0700, batesrt wrote:
>>> >
>>> >> hi, wanting to get a smaller inner (double) chainring for my wife's
>>> >> bike than the 39t it came with. question is, how much lower teeth-wise
>>> >> would i have to go for her to notice much at all when climbing?
>>> >> already has a 12-27 cassette in the back.
>>> >
>>> >You might notice that the bolts that hold that chainring on are right next
>>> >to the teeth. Can't go any smaller. OK, you might find a 38 that will
>>> >fit, but it is not worth the expense.
>>> >
>>> >You need to either go for a pie-plate cassette
>>>
>>> You'll also need a long cage rear der and a longer chain.
>>>
>>>
>>> >or a compact crankset,
>>> >which would let you get a 34-tooth inner ring. That would give a
>>> >significantly lower (13% lower than a 39) low gear.
>>
>>Dear RB,
>>
>>Er . . . maybe you're thinking of installing a larger rear cassette?
>>That might require a long cage rear derailleur and a longer chain.
>>
>>But the original poster will be shortening his chain, not lengthening
>>it--he and David are talking about smaller front chain rings.
>>
>>And changing to smaller front chain rings won't require a long cage
>>rear derailleur.
>>
>>Cheers,
>>
>>Carl Fogel
>
>
>Dear Carl,
>
>I was replying to:
>
>> >You need to either go for a pie-plate cassette
>
>with:
>
>> You'll also need a long cage rear der and a longer chain.
>
>You wrote:
>
>>Er . . . maybe you're thinking of installing a larger rear cassette?
>
>Er . . . yes, I am. That would be the "pie plate" cassette mentioned
>above.
>
>Perhaps I should have been more clear and written: "If you choose to
>go with the larger cassette, you will need a... etc."
>
>RB

Dear RB,

Nah, you were clear enough.

I was the one who mis-read things, not you.

What could be more plainly a rear cassette than "pie-plate cassette"?

D'oh!

Sorry,

Carl Fogel

 

[R Brickston]

On Tue, 25 Jul 2006 00:25:42 -0600, [email protected] wrote:

>On Tue, 25 Jul 2006 06:21:54 GMT, R Brickston
><rb20170REMOVE.yahoo.com@> wrote:
>
>>On 24 Jul 2006 23:05:06 -0700, [email protected] wrote:
>>
>>>
>>>R Brickston wrote:
>>>> On Mon, 24 Jul 2006 21:13:12 -0500, "David L. Johnson"
>>>> <[email protected]> wrote:
>>>>
>>>> >On Mon, 24 Jul 2006 14:20:55 -0700, batesrt wrote:
>>>> >
>>>> >> hi, wanting to get a smaller inner (double) chainring for my wife's
>>>> >> bike than the 39t it came with. question is, how much lower teeth-wise
>>>> >> would i have to go for her to notice much at all when climbing?
>>>> >> already has a 12-27 cassette in the back.
>>>> >
>>>> >You might notice that the bolts that hold that chainring on are right next
>>>> >to the teeth. Can't go any smaller. OK, you might find a 38 that will
>>>> >fit, but it is not worth the expense.
>>>> >
>>>> >You need to either go for a pie-plate cassette
>>>>
>>>> You'll also need a long cage rear der and a longer chain.
>>>>
>>>>
>>>> >or a compact crankset,
>>>> >which would let you get a 34-tooth inner ring. That would give a
>>>> >significantly lower (13% lower than a 39) low gear.
>>>
>>>Dear RB,
>>>
>>>Er . . . maybe you're thinking of installing a larger rear cassette?
>>>That might require a long cage rear derailleur and a longer chain.
>>>
>>>But the original poster will be shortening his chain, not lengthening
>>>it--he and David are talking about smaller front chain rings.
>>>
>>>And changing to smaller front chain rings won't require a long cage
>>>rear derailleur.
>>>
>>>Cheers,
>>>
>>>Carl Fogel
>>
>>
>>Dear Carl,
>>
>>I was replying to:
>>
>>> >You need to either go for a pie-plate cassette
>>
>>with:
>>
>>> You'll also need a long cage rear der and a longer chain.
>>
>>You wrote:
>>
>>>Er . . . maybe you're thinking of installing a larger rear cassette?
>>
>>Er . . . yes, I am. That would be the "pie plate" cassette mentioned
>>above.
>>
>>Perhaps I should have been more clear and written: "If you choose to
>>go with the larger cassette, you will need a... etc."
>>
>>RB
>
>Dear RB,
>
>Nah, you were clear enough.
>
>I was the one who mis-read things, not you.
>
>What could be more plainly a rear cassette than "pie-plate cassette"?
>
>D'oh!
>
>Sorry,
>
>Carl Fogel

Well, I guess in the roadie 5-10% body fat world, a "pie plate
cassette" probably means a 12-27.

 

[Bill Sornson]

R Brickston wrote:

> Well, I guess in the roadie 5-10% body fat world, a "pie plate
> cassette" probably means a 12-27.

I think you'll find that, to Fabrizio, anything bigger than a /21/ in back
is a pie plate.

Bill "12-17 is /cream/ corn, not a corn cob" S.