9 speed to 10 speed

maloner

My race bike is 10 speed and my winter bike is 9 speed. To get the winter bike to 10 speed I presume I need:

* 10 speed shifter
* 10 speed cassette ( Is getting just one more cog an option?)

Do I also need a new derailleur and/or a new chain?

Seweryn

maloner wrote: »

My race bike is 10 speed and my winter bike is 9 speed. To get the winter bike to 10 speed I presume I need:

* 10 speed shifter
* 10 speed cassette

Yes and yes.

maloner wrote: »

( Is getting just one more cog an option?)

No.

You probably do not need a new derailleur if it is the same system (Shimano - Shimano).

You need a new 10-speed chain.

Scrappy600

Yes, new derailleur and chain needed also

denbatt

Derailleur, chain and you will need to check will your wheel take a 10 speed.

Scrappy600

Seweryn wrote: »

Yes and yes.



No.

You probably do not need a new derailleur if it is the same system (Shimano - Shimano).

You need a new 10-speed chain.

I would have thought the 9 spd derailleur won't have enough travel to move to a tenth cog will it?

smacl

Scrappy600 wrote: »

I would have thought the 9 spd derailleur won't have enough travel to move to a tenth cog will it?

Changed from 9 speed (campag) to 10 speed over the winter and kept the old derailleur. Plenty of travel although you will need to adjust the limit screws and check the indexing.

Seweryn

Scrappy600 wrote: »

I would have thought the 9 spd derailleur won't have enough travel to move to a tenth cog will it?

I would say there will be no problem at all with a 9-speed derailleur in a 10-speed cassette.

CramCycle

For Shimano the derailleurs are interchangeable, if you check the technical specs for equivalent 9 and 10 speed rear derrailleurs you will see they are practically identical in every (well the few I have checked) scenario.