Which cassette do i need?

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

Quoted message said:

Hi all,

this is going to sound like a really daft question so apologies in

advance.

Quoted message said:

My current gear setup is 3 on the left handle and 7 on the right. I was told that the cogs nearest
my pedals were worn so i need to look at replacing them (they do skip every now and again). I
thought while im at

it

Quoted message said:

i may as well replace my rear cassette too.

What do i need to get? i am new to this maintenance malarky so dont have a clue (other than I
presume ill need a 7 speed cassette for the rear

wheel)?

Quoted message said:

Thanks in advance

Lee

Have you replaced the chain recently? You pretty much have to replace the rear cassette and chain at
the same time. I also had to replace my middle front sprocket due to chain suck. I also think I will
replace the front small sprocket as I get a little bit of a jump.

Changing these parts is the expensive side of cycling 🙁

Lee said:

this is going to sound like a really daft question so apologies in advance. My current gear setup
is 3 on the left handle and 7 on the right. I was told that the cogs nearest my pedals were worn so
i need to look at replacing them (they do skip every now and again). I thought while im at it i may
as well replace my rear cassette too.

Quoted message said:

What do i need to get? i am new to this maintenance malarky so dont have a clue (other than I
presume ill need a 7 speed cassette for the rear wheel)?

How old is your bike? I just had two rather disappointing attempts at replacing cassettes... Bike
one is an old tourer (~15 years old) which I put together at the time from bits and pieces. I
haven't used it much for the past 8 years, and wanted to replace the current setup that works on
flat Dutch roads with something more suited for Scotland. LBS told me that the (6 cogs) cassette
system was obsolete and that basically I would have to replace the rear wheel (probably setting of a
chain of other things that would have to be replaced...) Bike two is a more recent (8 years or so)
Giant hybrid with what was at the time good quality Shimano parts (3x7 gears). Again, was told that
the cassete wasn't made anymore but that they could probably fit a similar newer cassette. Same
story for the front blades, and it will probably involve buying a new derailleur.

Short answer: what you need to buy and what you need to fit it will depend on your bike.

Roos

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

Quoted message said:

Have you replaced the chain recently? You pretty much have to replace the rear cassette and chain
at the same time. I also had to replace my middle front sprocket due to chain suck. I also think I
will replace the front small sprocket as I get a little bit of a jump.

Changing these parts is the expensive side of cycling 🙁

Yeah, got a new chain about a month and a half ago.. that bad?

"Roos Eisma" <[email hidden]> wrote in message "]news:[email hidden]... than
I presume ill need a 7 speed cassette for the rear wheel)?

Quoted message said:

How old is your bike? I just had two rather disappointing attempts at replacing cassettes... Bike
one is an old tourer (~15 years old) which I put together at the time from bits and pieces. I
haven't used it much for the past 8 years, and wanted to replace the current setup that works on
flat Dutch roads with something more suited for Scotland. LBS told me that the (6 cogs) cassette
system was obsolete and that basically I would have to replace the rear wheel (probably setting of
a chain of other things that would have to be replaced...) Bike two is a more recent (8 years or
so) Giant hybrid with what was at the time good quality Shimano parts (3x7 gears). Again, was told
that the cassete wasn't made anymore but that they could probably fit a similar

newer

Quoted message said:

cassette. Same story for the front blades, and it will probably involve buying a new derailleur.

Short answer: what you need to buy and what you need to fit it will depend on your bike.

Roos

Unfortunately here I will struggle. My bike was my Dads bike and is about 2-3 years old i think and
the parts look fairly modern (!).

The thing is that it was left stadning outside (covered) for about a year before i pinched.. er..
asked him to borrow it. So the chain was rusted solid and the gears were less than perfect. Ive
slowly been replacing bits and pieces (my rear brakes, lights etc.) but the gears really need doing
as they do tend to jump regularly.

All in all i guess i am better to go to LBS and see what they say (they DID quote me about £25 i
think when i got my new chain...)

Lee

Lee said:

this is going to sound like a really daft question so apologies in advance.

Don't worry, it's not daft.

My current gear setup is 3 on the left handle and 7 on the

Quoted message said:

right. I was told that the cogs nearest my pedals

(known as chainrings)

Quoted message said:

were worn so i need to look at replacing them (they do skip every now and again).

Are you quite sure chain is actually skipping on chainrings not rear sprockets? Can be hard to tell
and a certain amount of wear is tolerable. Might be worth getting a second opinion because
chainrings are not cheap.

Quoted message said:

I thought while im at it i may as well replace my rear cassette too.

What do i need to get? i am new to this maintenance malarky so dont have a clue (other than I
presume ill need a 7 speed cassette for the rear wheel)?

First you need to be sure if it's a cassette or a freewheel. This article might help:
sheldonbrown.comfree k7.htmlOpen ↗

A good bike shop will advise on suitable makes and models. Cheap ones generally work fine - this is
not a part where you have to spend big money to get someting decent.

Are you happy with the gear ratios? Can you get up the hills well enough? Are the differences
between each rear gear ok or annoyingly large, etc, etc? You won't necessarily have to stick to the
same gears so this is your chance! If you need more advice/opinions on this, please post the number
of teeth each of your chainrings and smallest & largest sprockets have, and tell us more about your
bike and style and speed of riding, and type of roads, etc? Manually count the teeth if the numbers
aren't marked on them.

Knowing the type, make and model of chainset (aka crankset: cranks & chainrings) would also help.

Get a new chain as well. Does not need to be a Shimano one.

~PB

Lee <[email hidden]> wrote:

: this is going to sound like a really daft question so apologies in advance. My current gear setup
: is 3 on the left handle and 7 on the right. I was told that the cogs nearest my pedals were worn
: so i need to look at replacing them (they do skip every now and again). I thought while im at it i
: may as well replace my rear cassette too.

: What do i need to get? i am new to this maintenance malarky so dont have a clue (other than I
: presume ill need a 7 speed cassette for the rear wheel)?

You'll need:

New "cogs" up front (called "chainwheels"😉. It may well be cheaper to just buy a whole new crankset
(ie the cranks + the rings) cheaply mail order

New cassette of the right type (get a shop/friend to work out what this is)

New chain.

Arthur

--
Arthur Clune clune.orgclune.orgOpen ↗ "Techolibertarians make a philosophy out of a personality defect"
- Paulina Borsook

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

Quoted message said:

"Lee"

Quoted message said:

something more suited for Scotland. LBS told me that the (6 cogs) cassette system was obsolete and
that basically I would have to replace the rear wheel (probably setting of a chain of other things
that would have to be replaced...)

Hmm - recently had a Reading LBS (Action Bikes) replace a 6 cogs cassette - they didn't seem to have
trouble sourcing them!

Alex

Quoted post said:

Originally posted by Lee


What do i need to get?

Start by trying to get the gears set up correctly, my bikes have worn chainrings and the gears do not skip. Do you get skip in all chainrings and the same rear sprocket ? One chainring and several sprockets ?. Try to ascertain the cause of the skip such as a specific chainring or a specific sprocket. Your chain is newish so you have made the first change. It is expensive to change the chain, cassette and chainrings and the problem may be due to maladjustment.

I don't change my cassette as I replace my chain, I keep my chains clean and lubed, replacing them about every 15 months or 2000 miles.

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

Quoted message said:

Hi all,

this is going to sound like a really daft question so apologies in

advance.

Not in the least daft.

However, if you are not sure it may be worth finding a good LBS with a nice spanner man who will do
the job this time but will explain what & why. This might prove cheaper than buying bits you don't
need (chainrings are pricey but last a fair while). Scruffy little bike shops that look as if they
are stuck in a time warp from the 1950's are often the best for this (and, indeed, many other bike
related things). Avoid the bright sparkly chains (particularly Halfraud's) as their spanner men
generally know SFA.

T

Lee said:

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

Quoted message said:

Have you replaced the chain recently? You pretty much have to replace the rear cassette and
chain at the same time. I also had to replace my middle front sprocket due to chain suck. I also
think I will replace the front small sprocket as I get a little bit of a jump.

Changing these parts is the expensive side of cycling 🙁

Yeah, got a new chain about a month and a half ago.. that bad?

To be on the safe side you should probably throw it away. Tough, I know, but worn sprockets knacker
chains, and knackered chains knacker sprockets, so if you don't replace them all at once the chances
are they'll just wear out again very quickly.

Of course if you haven't ridden much since you put it on it _could_ be OK - talk to your LBS and get
someone experienced to advise you.

--
[email hidden] (Simon Brooke) jasmine.org.uk~simonOpen ↗ ;; If God does not write LISP,
God writes some code so similar to ;; LISP as to make no difference.

Mr R@t \(2.3 zulu-alpha\) comms room 2 said:

"Roos Eisma" <[email hidden]> wrote in message

Quoted message said:

something more suited for Scotland. LBS told me that the (6 cogs) cassette system was obsolete
and that basically I would have to replace the rear wheel (probably setting of a chain of other
things that would have to be replaced...)

Quoted message said:

Hmm - recently had a Reading LBS (Action Bikes) replace a 6 cogs cassette - they didn't seem to
have trouble sourcing them!

Maybe I should go for a second opinion. They did have one 6-speed in their catalogue but of a
different model an they expected that it wouldn't fit. Last time I changed the cogs on this bike I
vaguely remember that I could choose individual blades, while now they seem to come in standard
sets. I have kept this bike mainly for nostalgic reasons, am not really prepared to spend real money
on it, I'll save that for that fast tourer 'bent 🙂

Roos

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

Quoted message said:

How old is your bike? I just had two rather disappointing attempts at replacing cassettes... Bike
one is an old tourer (~15 years old) which I put together at the time from bits and pieces. I
haven't used it much for the past 8 years, and wanted to replace the current setup that works on
flat Dutch roads with something more suited for Scotland. LBS told me that the (6 cogs) cassette
system was obsolete and that basically I would have to replace the rear wheel (probably setting of
a chain of other things that would have to be replaced...)

This is Bollox (tm). All the bits are readily available.

Quoted message said:

Bike two is a more recent (8 years or so) Giant hybrid with what was at the time good quality
Shimano parts (3x7 gears). Again, was told that the cassete wasn't made anymore but that they
could probably fit a similar

newer

Quoted message said:

cassette. Same story for the front blades, and it will probably involve buying a new derailleur.

This is probably mostly Bollox (tm)

T

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

Quoted message said:

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

Quoted message said:

How old is your bike? I just had two rather disappointing attempts at replacing cassettes...
Bike one is an old tourer (~15 years old) which I put together at the

time

Quoted message said:

Quoted message said:

from bits and pieces. I haven't used it much for the past 8 years, and wanted to replace the
current setup that works on flat Dutch roads with something more suited for Scotland. LBS told
me that the (6 cogs)

cassette

Quoted message said:

Quoted message said:

system was obsolete and that basically I would have to replace the rear wheel (probably setting
of a chain of other things that would have to be replaced...)

This is Bollox (tm). All the bits are readily available.

Quoted message said:

Bike two is a more recent (8 years or so) Giant hybrid with what was at the time good quality
Shimano parts (3x7 gears). Again, was told that

the

Quoted message said:

Quoted message said:

cassete wasn't made anymore but that they could probably fit a similar

newer

Quoted message said:

cassette. Same story for the front blades, and it will probably involve buying a new derailleur.

This is probably mostly Bollox (tm)

T

LOL - sounds good to me - LBS it is!

Tony W said:

Quoted message said:

How old is your bike? I just had two rather disappointing attempts at replacing cassettes... Bike
one is an old tourer (~15 years old) which I put together at the time from bits and pieces. I
haven't used it much for the past 8 years, and wanted to replace the current setup that works on
flat Dutch roads with something more suited for Scotland. LBS told me that the (6 cogs) cassette
system was obsolete and that basically I would have to replace the rear wheel (probably setting
of a chain of other things that would have to be replaced...)

This is Bollox (tm). All the bits are readily available.

It's not always quite so simple. Choice of 6sp freewheels is getting limited and I think some
obscure 6sp parts are truely obsolete. Were there ever any 6sp cassettes?

~PB

----- Original Message ----- From: "Pete Biggs" <[email hidden]> Newsgroups:
uk.rec.cycling Sent: Thursday, September 11, 2003 3:20 PM Subject: Re: Which cassette do i need?

Quoted message said:

Quoted message said:

This is Bollox (tm). All the bits are readily available.

It's not always quite so simple. Choice of 6sp freewheels is getting limited and I think some
obscure 6sp parts are truely obsolete. Were there ever any 6sp cassettes?

See sjscycles.comvIndex.htmOpen ↗

St John's have 3 6 speed cassettes -- 2 Shimano and one Suntour (which is available in 2 flavours).

They have 15 six speed freewheels -- several of which are available in various flavours.

I suggest Lee would need to be fairly unlucky to have to start from scratch.

T

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

Quoted message said:

I suggest Lee would need to be fairly unlucky to have to start from

scratch.

Quoted message said:

T

Unlucky is my middle name!

Lee said:

"Tony W" <[email hidden]> wrote in message

Quoted message said:

Quoted message said:

I suggest Lee would need to be fairly unlucky to have to start from

scratch.

Quoted message said:

Unlucky is my middle name!

And to clear up the quote&cut confusion: I'm the unlucky one with the 6-speed cassette, you should
be reasonably safe with your probably rather recent 7-speed one 🙂

Roos

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

Quoted message said:

"Lee"

Quoted message said:

Quoted message said:

"Tony W" <[email hidden]> wrote in message

Quoted message said:

Quoted message said:

I suggest Lee would need to be fairly unlucky to have to start from

scratch.

Quoted message said:

Unlucky is my middle name!

And to clear up the quote&cut confusion: I'm the unlucky one with the 6-speed cassette, you should
be reasonably safe with your probably rather recent 7-speed one 🙂

Roos

Wow, a stroke of good luck for a change!

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

Quoted message said:

Unlucky is my middle name!

Have you considered getting it changed by deed poll?

cheers, clive