changing a sprocket

godihatedehills

I've been googling but it's throwing up lots of info on ducatis and very little on track bikes. I've a feeling I might get an answer quicker here.....just wondering what I need to change the sprocket on my track bike?

Obviously....a new sprocket. Anything else? Any, like, tools and stuff??

Thx:)

Caroline_ie

there is a quick way ... no tools needed exepct a lock ring tool where you wrap your chain around the proket and turn the opposite durection. Now ... I am sorry I am not able to explain it better but I am sure someone will post a link

niceonetom

A lockring tool and a chain-whip. You can get both together, sometimes called a track-tool.

Here

The most important thing to know is that the lock-ring is reverse threaded (clockwise to tighten) and the sprocket is normally threaded.

godihatedehills

niceonetom wrote: »

A lockring tool and a chain-whip. You can get both together, sometimes called a track-tool.

Here

The most important thing to know is that the lock-ring is reverse threaded (clockwise to tighten) and the sprocket is normally threaded.

lefty loosey, righty tighty?

niceonetom

godihatedehills wrote: »

lefty loosey, righty tighty?

Bum. I think i got it wrong in my post there.

Lock-ring: reverse threaded (righty loosey, lefty tighty)
Sprocket: normally threaded (righty tighty, lefty loosey)

niceonetom

Caroline_ie wrote: »

there is a quick way ... no tools needed exepct a lock ring tool where you wrap your chain around the proket and turn the opposite durection. Now ... I am sorry I am not able to explain it better but I am sure someone will post a link

The way to tighten the cog on without a chain-whip is THIS, the rotafix method. It's very effective.

godihatedehills

Thanks a mill for your help. Would this basket do the business??

(I can already see 'someone' driving to the track next week begging for help to put her bike back together..... )

Raam

Change Sprocket?! Noooooooooo!

niceonetom

godihatedehills wrote: »

Thanks a mill for your help. Would this basket do the business??

(I can already see 'someone' driving to the track next week begging for help to put her bike back together..... )

I don't think you can link to your own basket. Mine is empty .

Tell us what you're getting.

Raam

niceonetom wrote: »

I don't think you can link to your own basket. Mine is empty .

Tell us what you're getting.

You know she is blonde, right?

godihatedehills

lol. right....

from velodromeshop:

a BBB chain whip (ooh matron) for £19
a track sprocket with 13 teeth for £15
and a BBB BB Lock ring remover (seriously, 5 Bs???) for £15.

go baby

Lumen

niceonetom wrote: »

The way to tighten the cog on without a chain-whip is THIS, the rotafix method. It's very effective.

Does that not scratch the bottom bracket shell?

niceonetom

godihatedehills wrote: »

lol. right....

from velodromeshop:

a BBB chain whip (ooh matron) for £19
a track sprocket with 13 teeth for £15
and a BBB BB Lock ring remover (seriously, 5 Bs???) for £15.

go baby

Looks right. That cog is 1/8th" - is your chain?

13t? What's your front ring? I'm no track expert, but I know that unless you've got quite a small chainring or are a monster masher 13t is small.

niceonetom

Lumen wrote: »

Does that not scratch the bottom bracket shell?

Not if you remove all the paint with nitromors first.

Caroline_ie

get one of these too!! They're class :P

godihatedehills

niceonetom wrote: »

Looks right. That cog is 1/8th" - is your chain?

13t? What's your front ring? I'm no track expert, but I know that unless you've got quite a small chainring or are a monster masher 13t is small.

yep, the chain is 1/8th.

I think the front ring is 48......

Caroline_ie

godihatedehills wrote: »

yep, the chain is 1/8th.

I think the front ring is 48......

Maybe have a look at this, it does seem high.