Chainsets / rings

Doki said:

Can I fit a 9 speed chainset on my 8 speed bike or will it all go wrong?

Yes, you ought to be ok. You're going to need a new chain and shifters if
you change the casette to a 9 as well, though. Also remember you might
need a new bottom bracket.

--
|C|H|R|I|S|@|F|A|S|T|M|A|I|L|.|F|M|

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

Quoted message said:

9 speed chainset ........8 speed chainset

ak I missing something here ........

the chainset is the big f*c* off rings at the front of the bike
the things which the cranks are conected to, the cranks the things your
pedals
conect to , the pedals are the things you place your feet upon and pedal

your FEET are the 2 things you stand upon

now please explain IN DETAIL the 8 speed chainset and the 9 speed chainset
!!!!!

Yup, you're missing something. In shimano-land, the chains are different,
hence the chainrings are different - those for a 9sp (at the back) setup are
thinner.

Also the 9sp may have the rings closer together, which if you're using
indexed front shifting may be relevant. Worth checking I reckon.

cheers,
clive

Clive George said:

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

Quoted message said:

9 speed chainset ........8 speed chainset

ak I missing something here ........

the chainset is the big f*c* off rings at the front of the bike
the things which the cranks are conected to, the cranks the things your
pedals
conect to , the pedals are the things you place your feet upon and pedal

your FEET are the 2 things you stand upon

now please explain IN DETAIL the 8 speed chainset and the 9 speed chainset
!!!!!

Yup, you're missing something. In shimano-land, the chains are different,
hence the chainrings are different - those for a 9sp (at the back) setup are
thinner.

Also the 9sp may have the rings closer together, which if you're using
indexed front shifting may be relevant. Worth checking I reckon.

cheers,
clive

Yup, that is indeed right - chainrings for 9 are different to chainrings
for 8, and yes the chain is narrower for 9 speeds.

Mind you, I have to say I'm vaguely amused that the reply in a less than
friendly tone seemed so certain that it was so simple...

--

Velvet

Davo said:

9 speed chainset ........8 speed chainset

ak I missing something here ........

the chainset is the big f*c* off rings at the front of the bike
the things which the cranks are conected to, the cranks the things
your pedals
conect to , the pedals are the things you place your feet upon and
pedal

your FEET are the 2 things you stand upon

now please explain IN DETAIL the 8 speed chainset and the 9 speed
chainset !!!!!

Calm down !!!!!

9sp chains are narrower than 8sp chains and the chainrings/chainsets are
supposed to optimised for certain chains. However, using the "wrong"
speed here is rarely a problem in practice, especially as the inside width
of the various chains is almost identical (more difference with overall
width).

Your reaction might be justified for brake calipers. I've seen those
described as "9 speed" ! :-)

~PB

Quoted message said:

Quoted message said:

now please explain IN DETAIL the 8 speed chainset and the 9 speed

chainset

Quoted message said:

Quoted message said:

!!!!!

Yup, you're missing something. In shimano-land, the chains are different,
hence the chainrings are different - those for a 9sp (at the back) setup

are

Quoted message said:

thinner.

Also the 9sp may have the rings closer together, which if you're using
indexed front shifting may be relevant. Worth checking I reckon.

He has got a point though. It's actually a 9-speed cassette that the OP was
referring to. A 9 speed chainset (9 gears at the front) - now that would be
fun! And probably, given the traffic in London, lethal....

Nick

9 speed chainset ........8 speed chainset

ak I missing something here ........

the chainset is the big f*c* off rings at the front of the bike
the things which the cranks are conected to, the cranks the things your
pedals
conect to , the pedals are the things you place your feet upon and pedal

your FEET are the 2 things you stand upon

now please explain IN DETAIL the 8 speed chainset and the 9 speed chainset
!!!!!

D@vo

the bigger the ring the more it hurts..

"Chris Davies" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Doki said:

Can I fit a 9 speed chainset on my 8 speed bike or will it all go wrong?

Yes, you ought to be ok. You're going to need a new chain and shifters if
you change the casette to a 9 as well, though. Also remember you might
need a new bottom bracket.

--
|C|H|R|I|S|@|F|A|S|T|M|A|I|L|.|F|M|

"Nick Drew" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Quoted message said:

Quoted message said:

now please explain IN DETAIL the 8 speed chainset and the 9 speed

chainset

Quoted message said:

Quoted message said:

!!!!!

Yup, you're missing something. In shimano-land, the chains are

different,

Quoted message said:

Quoted message said:

hence the chainrings are different - those for a 9sp (at the back) setup

are

Quoted message said:

thinner.

Also the 9sp may have the rings closer together, which if you're using
indexed front shifting may be relevant. Worth checking I reckon.

He has got a point though. It's actually a 9-speed cassette that the OP

was

Quoted message said:

referring to. A 9 speed chainset (9 gears at the front) - now that would

be

Quoted message said:

fun! And probably, given the traffic in London, lethal....

Nope, it was a chainset the OP was referring to. Check the thread title...

cheers,
clive