105 rear mechs

YES ...

You can certainly use-and-install a 9-speed 105 rear derailleur with your SORA groupset ...

Subjectively, the 105 rear derailleur looks a little better than the Sora rear derailleur of the same vintage ...

The advantage is that you will reduce the weight of the bike by about 2 ounces ...

• which is to say, the only reason to change to a 105 rear derailleur is if you need a LONGER cage with more capacity ...
  
• but then, an LX or XT rear derailleur would probably be a better choice.
  

alfeng said:

YES ...    You can certainly use-and-install a 9-speed 105 rear derailleur with your SORA groupset ... Subjectively, the 105 rear derailleur looks a little better than the Sora rear derailleur of the same vintage ... The advantage is that you will reduce the weight of the bike by about 2 ounces ...

• which is to say, the only reason to change to a 105 rear derailleur is if you need a LONGER cage with more capacity ...
• but then, an LX or XT rear derailleur would probably be a better choice.

Thanx

you also get mechanical benefits, more accurate shifting and longer lifespan,

Cheers

Hi, just bought a bianchi via nirone with standard reparto corse rims from new is there alot of benefit installing new rims, poss mavic aksium,have about £150 ish to upgrade.thanx

Quoted post said:

Originally Posted by kip65 [IMG]/img/forum/go_quote.gif[/IMG]

Hi, just bought a bianchi via nirone with standard reparto corse rims from new is there alot of benefit installing new rims, poss mavic aksium,have about £150 ish to upgrade.thanx

While different wheels can sometimes be beneficial, I strongly doubt that the MAVIC Aksium wheels which you are considering will benefit anyone other than the retailer and/or MAVIC ...

IMO, if you want better wheels, then save your money until you can buy some DT Swiss 240 hubs and then have a set of wheels laced with them.

A set of wheels with SHIMANO Ultegra hubs which are properly adjusted will be almost as good, BTW.

Thanx for sound advice