Join Date: Jul 2008
Location: Grid Reference, SK
Bikes: I never learned to ride a bike. It is my deepest shame.
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Sadly the 8 speed shifters currently available from Shimano are not nearly as nice as the RX-100. The Sora and 2200 models have a downshift mechanism with a little 'mouse ear' button on the inside, and its placement makes it very difficult to downshift when your hands are on the drops.
Luckily, since you are replacing rear derailleur and shifters and cassette anyway, you can just get 9 speed compatible parts (all derailleurs from $35 and up are 9 speed already).
If I were you, I would get Tiagra STI levers (same quality as RX-100, but more reliable), a Deore derailleur (same quality as RX100 but with a wider gear range), a 9 speed cassette, and a 9 speed chain.
If your existing hub is still smooth then it might make sense to rebuild or have it rebuilt with a new rim and new spokes... otherwise just get a whole new wheel and make sure it is properly hand tensioned by a good builder. A 9 speed cassette will fit onto the same hub as an 8 speed cassette.
You crank and front derailleur should work fine with 9 speed chain.
This is all assuming you can get a new derailleur hanger.
Beofre you buy anything, add up the prices of the parts you have sourced... you can get a new similar quality bike for ~$800