Upgrading to 10 Speed (Tiagra ST-4500)

[guppy02]

Hi Guys

wondering if you could help i am mainly curious if this is possible. I have Tiagra ST-4500 shifters, I have a 105 rear derailleur and a tiagra front derailleur. If i was to upgrade to 10 speed would my shifters, and front derailleur be compatible?

Cheers

 

[smokeysmoo]

No. You'd need to change to 10 speed shifters as well.

 

[Broadside]

The rear dérailleur will be fine but you will prob need to change to a 10spd front mech too plus a new chain and cassette (obviously).

Not sure about the chain set, hear this may be necessary too but someone else will be along to confirm.

 

[PatrickPending]

New shifters as already said, front and rear mech generally ok - as will be the chain set - I'm assuming you have a 9 speed set up.- newer components are generally 10spd anyway - they just work fine with 9 speed too.
I did this myself - purely because my shifter broke after a crash - what I bought was new shifters, and new rear cassette oh and changed the cables at the same time and a new 10spd chain. Works fine. I don't think I would go to 10 speed just for the sake of it in fact I prefer my commuter to be 9 speed for the extra chain life I get from the slightly wider chain.