Sram cassettes

Signal_ rabbit

Does anyone know if you can buy sram cogs separately? I am looking for an 11tooth cog for my PG850 as mine is worn.

Lumen

They're not listed in the SRAM spare parts list (in the road section anyway), but bike-components.de are a decent source for this sort of thing.

edit: a new PG850 cassette is pretty cheap.

Dubba

Lumen wrote: »

They're not listed in the SRAM spare parts list (in the road section anyway), but bike-components.de are a decent source for this sort of thing.

edit: a new PG850 cassette is pretty cheap.

That is cheap, aren't they bout €50 in halfords?

Signal_ rabbit

Dubba wrote: »

That is cheap, aren't they bout €50 in halfords?

Its cheap but with tax, P&P and small order cost (!) it comes out at over €30. CRC have them on sale for £18. I begrudge buying a whole cassette for one sprocket, I already have a new one in the shed (without an 11T) already!

Deisetrek

Signal_ rabbit wrote: »

Its cheap but with tax, P&P and small order cost (!) it comes out at over €30. CRC have them on sale for £18. I begrudge buying a whole cassette for one sprocket, I already have a new one in the shed (without an 11T) already!

Don't fancy your chances of getting your problem sorted any cheaper , you can't make a silk purse out of a sow's ear ........;)

Quigs Snr

Who wears out just an 11T, you're just showing off aren't you ! Is your name Fabian ?

Morgan

I suspect you have very small front chainrings if you're wearing out the 11t. .

cdaly_

Yep. Time to work on your cadence...

Signal_ rabbit

Quigs Snr wrote: »

Who wears out just an 11T, you're just showing off aren't you ! Is your name Fabian ?

I have a 12-26 cassette on my road bike and needed a faster gear for the sprints and the time trials, so I bought a 11-28 MTB cassette and used the 11 tooth from that to replace my 12 tooth. It makes a really big difference for one tooth but it wears quickly as its under a lot of stress.

Ryaner

Signal_ rabbit wrote: »

I have a 12-26 cassette on my road bike and needed a faster gear for the sprints and the time trials, so I bought a 11-28 MTB cassette and used the 11 tooth from that to replace my 12 tooth. It makes a really big difference for one tooth but it wears quickly as its under a lot of stress.

SRAM do an 11-26 road cassette?
Also how are you actually wearing out the cassette? Are you not changing your chain or something? I've over 8000km on one of my SRAM cassettes and besides a few small marks on the faces, it is fine.

Signal_ rabbit

Ryaner wrote: »

SRAM do an 11-26 road cassette?
Also how are you actually wearing out the cassette? Are you not changing your chain or something? I've over 8000km on one of my SRAM cassettes and besides a few small marks on the faces, it is fine.

The 11-26 is a nine speed, I only have an 8 speed. I only changed the 12 tooth for an 11 tooth on my 12-26 cassette.

I change my chain regularly (about every 3500-4000k), it's only after putting on a new chain that i noticed skipping in the 11 tooth cog on both front chain rings indicating that the cog is worn. The other cogs are fine.

The 11 tooth cog being the smallest would be first to show signs of wearing.

billy.fish

Signal_ rabbit wrote: »

The 11 tooth cog being the smallest would be first to show signs of wearing.

Dont be mental.

Whatever cog you spend the most time in cross chaining will wear out the fastest.

If you are running and 53 front ring and wearing out your 11 all the time i hope you have a massive ability to suck up low range torque in your knees.

Signal_ rabbit

billy.fish wrote: »

Dont be mental. If you are running and 53 front ring and wearing out your 11 all the time i hope you have a massive ability to suck up low range torque in your knees.

Not quite sure how to respond to this as I'm not sure what you mean.

I am very aware of cross chaining and try to avoid this as I know how it can wear the chain/sprokets/front chainrings very quickly.

cdaly_

Signal_ rabbit wrote: »

Not quite sure how to respond to this as I'm not sure what you mean.

I presume he means you're not pedalling fast enough. 53x11t@90rpm gives you 54.8kph and @100rpm gives you 60.9kph. Are you going that fast often enough to wear out the sprocket?