Join Date: Apr 2002
Location: Montréal (Québec)
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
What "Wellbike" suggested is a free trick that work perfectly for an 8/9 speed system, and as I look at the proportions, it should work correctly for a 9/10 speed system.
If you don't like homemade solutions and want a commercial "proven" one, install a Shiftmate.
Basically, as Hillrider said, since the shifters are the most expensive part, it makes sense to buy the 10-speed when you need a new set of shifters. But for the rest, save your money, at least until your cassette is worn out.
Alternatively, look for a neighbourhood cycling club and get a set of used 9-speed shifters.