New to mechanics

[steveindenmark]

I have plenty of bikes which are kept in good order by keeping them clean and oiled and minor repairs.

I am now moving on bit and want to change Jannies 9 speed cassette for an almost new 10 speed cassette I have spare. I have a new 10 speed chain and it is not a problem for me to remove and replace the cassette.

Is it possible to replace a 9 speed cassette with a 10 speed and what else will I learn how to do to make this work?

 

[Tim Hall]

10 speed shifter would be a good thing to have, unless Jannie is using a friction shifter.

 

[lpretro1]

And possibly 10spd front & rear derailleurs

 

[Lonestar]

And possibly 10spd front & rear derailleurs

I take it the chain is thinner?

 

[Ajax Bay]

And possibly 10spd front & rear derailleurs

Most probably not. The (new) 10 speed right hand STI that you'll need to fit will pull slightly less cable with each 'click' and the RD will move that little bit less (to reflect the reduced 10 speed cassette sprocket spacing. The FD activity will not be affected. The difference the chain width makes is minimal, as far as changing is concerned.

 

[lpretro1]

That's why I said 'possibly' - it doesn't always work

 

[Ajax Bay]

it doesn't always work

What doesn't? Are you saying a Shimano RD that works with a 9 speed STI doesn't ALWAYS work correctly with a 10 speed STI? Examples?
That's why I said 'most probably'. I didn't want to directly disagree, but I will if you want.

 

[mjr]